chore: upgrade snapshots

* Fixed typo in message

* Fixed typo in message

.github/SECURITY.md

@@ -0,0 +1,13 @@
+# Security Policy
+
+**PLEASE DON'T DISCLOSE SECURITY-RELATED ISSUES PUBLICLY, [SEE BELOW](#reporting-a-vulnerability).**
+
+## Reporting a Vulnerability
+
+If you discover a security vulnerability in Pest, please report it privately using one of the following channels:
+
+1. **GitHub Private Vulnerability Reporting** (preferred) — go to the repository's **Security** tab and click **"Report a vulnerability"**. This creates a private advisory visible only to maintainers and provides a structured workflow for triage, fix coordination, and CVE assignment.
+
+2. **Email** — send the details to Nuno Maduro at **enunomaduro@gmail.com**.
+
+All security vulnerabilities will be promptly addressed.

.github/dependabot.yml

@@ -0,0 +1,12 @@
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    cooldown:
+      default-days: 5
+    groups:
+      github-actions:
+        patterns:
+          - "*"

.github/workflows/static.yml

@@ -2,9 +2,17 @@ name: Static Analysis
 
 on:
   push:
+    branches: [5.x]
   pull_request:
   schedule:
-    - cron: '0 0 * * *'
+    - cron: '0 9 * * *'
+
+concurrency:
+  group: static-${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+permissions:
+  contents: read
 
 jobs:
   static:
@@ -12,25 +20,42 @@ jobs:
     name: Static Tests
 
     runs-on: ubuntu-latest
+    timeout-minutes: 15
     strategy:
       fail-fast: true
       matrix:
-        dependency-version: [prefer-lowest, prefer-stable]
+        dependency-version: [prefer-stable]
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v6
+      uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
 
     - name: Setup PHP
-      uses: shivammathur/setup-php@v2
+      uses: shivammathur/setup-php@f3e473d116dcccaddc5834248c87452386958240 # v2
       with:
-        php-version: 8.3
+        php-version: 8.4
         tools: composer:v2
         coverage: none
         extensions: sockets
 
+    - name: Get Composer cache directory
+      id: composer-cache
+      shell: bash
+      run: echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT
+
+    - name: Cache Composer dependencies
+      uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v5
+      with:
+        path: ${{ steps.composer-cache.outputs.dir }}
+        key: static-php-8.4-${{ matrix.dependency-version }}-composer-${{ hashFiles('**/composer.json', '**/composer.lock') }}
+        restore-keys: |
+          static-php-8.4-${{ matrix.dependency-version }}-composer-
+          static-php-8.4-composer-
+
     - name: Install Dependencies
-      run: composer update --prefer-stable --no-interaction --no-progress --ansi
+      env:
+        COMPOSER_ROOT_VERSION: 5.x-dev
+      run: composer update --${{ matrix.dependency-version }} --no-interaction --no-progress --ansi
 
     - name: Profanity Check
       run: composer test:profanity
@@ -41,8 +66,5 @@ jobs:
     - name: Type Coverage
       run: composer test:type:coverage
 
-    - name: Refacto
-      run: composer test:refacto
-
     - name: Style
       run: composer test:lint

.github/workflows/tests.yml

@@ -2,35 +2,60 @@ name: Tests
 
 on:
   push:
+    branches: [5.x]
   pull_request:
+  schedule:
+    - cron: '0 9 * * *'
+
+concurrency:
+  group: tests-${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+permissions:
+  contents: read
 
 jobs:
   tests:
     if: github.event_name != 'schedule' || github.repository == 'pestphp/pest'
 
     runs-on: ${{ matrix.os }}
+    timeout-minutes: 15
     strategy:
       fail-fast: true
       matrix:
         os: [ubuntu-latest, macos-latest] # windows-latest
-        symfony: ['7.3']
-        php: ['8.3', '8.4', '8.5']
+        symfony: ['8.0']
+        php: ['8.4', '8.5']
         dependency_version: [prefer-stable]
 
     name: PHP ${{ matrix.php }} - Symfony ^${{ matrix.symfony }} - ${{ matrix.os }} - ${{ matrix.dependency_version }}
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v6
+      uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
 
     - name: Setup PHP
-      uses: shivammathur/setup-php@v2
+      uses: shivammathur/setup-php@f3e473d116dcccaddc5834248c87452386958240 # v2
       with:
         php-version: ${{ matrix.php }}
         tools: composer:v2
         coverage: none
         extensions: sockets
 
+    - name: Get Composer cache directory
+      id: composer-cache
+      shell: bash
+      run: echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT
+
+    - name: Cache Composer dependencies
+      uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v5
+      with:
+        path: ${{ steps.composer-cache.outputs.dir }}
+        key: ${{ matrix.os }}-php-${{ matrix.php }}-symfony-${{ matrix.symfony }}-composer-${{ hashFiles('**/composer.json', '**/composer.lock') }}
+        restore-keys: |
+          ${{ matrix.os }}-php-${{ matrix.php }}-symfony-${{ matrix.symfony }}-composer-
+          ${{ matrix.os }}-php-${{ matrix.php }}-composer-
+
     - name: Setup Problem Matches
       run: |
         echo "::add-matcher::${{ runner.tool_cache }}/php.json"
@@ -38,6 +63,8 @@ jobs:
 
     - name: Install PHP dependencies
       shell: bash
+      env:
+        COMPOSER_ROOT_VERSION: 5.x-dev
       run: composer update --${{ matrix.dependency_version }} --no-interaction --no-progress --ansi --with="symfony/console:^${{ matrix.symfony }}"
 
     - name: Unit Tests

.gitignore

@@ -1,7 +1,7 @@
 .idea/*
 .idea/codeStyleSettings.xml
 .temp/*
-composer.lock
+/composer.lock
 /vendor/
 coverage.xml
 .phpunit.result.cache

CLAUDE.md

@@ -0,0 +1,34 @@
+# CLAUDE.md
+
+**Do not edit this file.** Agents must never add, remove, or reword anything here. If a change seems needed, say so and let a human do it.
+
+## Ask before testing
+
+When asked to review code or build a feature, do not run the test suite and do not write new tests. Make the change, report it, then ask the user whether tests should be added — describing the tests you have in mind — and wait for the user to confirm.
+
+Two reasons this matters here: the suite takes minutes, and `tests/.snapshots/success.txt` plus the tally in `tests/Visual/Parallel.php` encode the whole suite's result, so a single added test breaks both.
+
+Once the user confirms:
+
+```bash
+composer test:unit         # fast, excludes the visual group
+composer test:integration  # visual and snapshot tests
+composer test              # everything CI runs, in CI's order
+composer update:snapshots  # only when a test was added or removed
+```
+
+## TIA scenario tests
+
+`tests/Features/Tia/*` scaffold a throwaway git project, run a real `pest` subprocess against it, and diff the TIA graph it wrote. They exist because TIA's contract is about what a run *writes* — replay, branch keys, and the COMPLETE / RESULTS-ONLY / HARD-SUPPRESSED tiers are invisible to ordinary assertions, and every case used to be measured by hand against a playground app.
+
+Add one whenever a change touches branch resolution, replay, filtered mode, or the write tiers. How:
+
+- `Project::make('master')` scaffolds; `seed('master')` writes a graph and sentinels every cached result (`time=9.999`, `assertions=42`) so any rewrite shows up.
+- `$project->pest('--tia', …)` runs it; `$project->delta()` compares against that snapshot. `writtenCount()` is the discriminator — `0` means "replayed", not "wrote the same values". `mutateGraph()` bends one entry; overlays in `tests/Fixtures/Tia/overlays/<name>/` supply a different `tests/Pest.php`.
+- Keep expectations driver-independent: a cold recording run needs pcov/xdebug and behaves differently without one. Seed a graph instead of recording one.
+
+Run them by file (a directory argument finds nothing) or by `--filter`:
+
+```bash
+php bin/pest tests/Features/Tia/PartialRunWriteTier.php
+```

Makefile

@@ -1,14 +0,0 @@
-# Well documented Makefiles
-DEFAULT_GOAL := help
-help:
-	@awk 'BEGIN {FS = ":.*##"; printf "\nUsage:\n  make \033[36m<target>\033[0m\n"} /^[a-zA-Z0-9_-]+:.*?##/ { printf "  \033[36m%-40s\033[0m %s\n", $$1, $$2 } /^##@/ { printf "\n\033[1m%s\033[0m\n", substr($$0, 5) } ' $(MAKEFILE_LIST)
-
-build: ## Build all docker images. Specify the command e.g. via make build ARGS="--build-arg PHP=8.2"
-	docker compose build $(ARGS)
-
-##@ [Application]
-install: ## Install the composer dependencies
-	docker compose run --rm composer install
-
-test: ## Run the tests
-	docker compose run --rm composer test

PLAN.md

@@ -0,0 +1,342 @@
+# TIA write-tier conformance — plan
+
+Baseline sweep: **147 cases, 144 PASS / 2 FAIL / 1 SKIP** against `dev-fix/tia-filtered` (`db70017`)
+on `playground/laravel` with pcov enabled.
+
+This file records (1) what is left to fix, and (2) the full case matrix with the target
+outcome for every row, so the sweep can be re-run as a conformance check after the fixes land.
+
+---
+
+## Part 1 — What's left
+
+### 1. `--parallel` silently under-records `edges` (G12, I5) — **high**
+
+Any `--tia --parallel` complete run writes `files=4` where sequential writes `files=25`. Only
+`app/**` and blade views survive; every `config/`, `routes/`, `bootstrap/` edge and every test
+self-edge is lost. A `routes/web.php` edit that sequential TIA catches, parallel TIA reports as
+`No affected tests found`.
+
+Root cause — `src/Restarters/PcovRestarter.php:33`:
+
+```php
+if (! Tia::isEnabledForRun($arguments)) {
+    return;
+}
+```
+
+`Tia::isEnabledForRun()` (`src/Plugins/Tia.php:275-288`) returns true only for `--tia` in argv or
+the `PEST_TIA` env flag. A paratest worker's argv carries neither, so workers never re-exec with
+`-d pcov.directory=<projectRoot>` and record under pcov's empty default scope.
+
+Proven both directions:
+- `PEST_PCOV_RESTARTER_RESTARTED=1 pest --tia` (sequential, restart suppressed) reproduces
+  `files=4` with edge sets identical to the parallel graph.
+- `PEST_TIA=1 pest --parallel` restores the full `files=25` graph. **Working workaround today.**
+
+Coverage config is irrelevant: widening `phpunit.xml` `<include>` to `app|config|routes|bootstrap|tests`
+still yields `files=4`.
+
+Sticky, not just per-run: `pest --tia --filtered --parallel` re-records only the affected test
+through a worker and strips that entry's edges from an otherwise-healthy sequential graph, so one
+parallel run degrades a good graph incrementally.
+
+**Fix direction:** propagate the TIA-enabled decision into workers (e.g. set `PEST_TIA` in the
+worker env, or have the parent stamp a recording global the restarter also consults) so
+`PcovRestarter` restarts them. Then assert `edges` equivalence between sequential and parallel.
+
+### 2. Deleted test file with a cached failure wedges `--filtered` forever (I9) — **high**
+
+Expected a WARN and a full-suite fallback. Actual: `--filtered` selects the phantom file, runs
+nothing, exits **0 green**, on every subsequent invocation.
+
+Root cause — `src/Plugins/Tia/Graph.php:1523-1525`:
+
+```php
+if ($real === false) {
+    $real = $path;
+}
+```
+
+`relative()` falls back to the raw path when `realpath()` fails, so a deleted-but-in-project test
+file is never "unlocated", `Graph::hasUnlocatedTestsToRerun()` never fires, and the WARN branch at
+`src/Plugins/Tia.php:982-986` is unreachable for the deletion case. `pruneMissingTests()` only runs
+under `--fresh`, so nothing clears it.
+
+**Fix direction:** distinguish "path could not be resolved" from "path resolved outside the root" in
+`relative()`, or have `hasUnlocatedTestsToRerun()` stat the file directly.
+
+### 3. `--coverage-text` does not disable filtered mode (I8) — **low**
+
+`coverageReportActive()` (`src/Plugins/Tia.php:1705-1710`) reads only Pest's own `--coverage`, so
+raw PHPUnit coverage flags (`--coverage-text`, `--coverage-html`, `--coverage-clover`, …) leave
+filtered mode on. `Tia::COVERAGE_FLAGS` at `:113-115` already enumerates them — that list is not
+consulted here.
+
+### 4. `--coverage` narrows edges like parallel does — **medium, needs triage**
+
+`pest --tia --coverage` prints `fresh graph (recording coverage baseline)` even when a graph
+exists, and writes `Feature/ExampleTest` with 2 files instead of 16, dropping self-edges. Same
+observable shape as G12, likely a different mechanism (piggyback collector scoped by
+`phpunit.xml <include>` rather than the pcov-restarted recorder). Theme: **edges silently narrow to
+`app/**` whenever recording does not go through the pcov-restarted TIA recorder.** Confirm whether
+these are one fix or two.
+
+### 5. Smaller items
+
+| Item | Where | Note |
+|---|---|---|
+| Warning/deprecation recorded as `status=0` | write path | Codes `6` and `4` appear unreachable; risky/skipped/incomplete record faithfully |
+| Complete non-TIA runs write edge-less results | `src/Plugins/Tia.php:1645`, `:638` | Guard is `! $complete && ! knowsTest()`; complete bypasses it and `markKnownTestFiles` stays false. Inert — replay guards on the same predicate at `:360` — but inflates `n` |
+| SIGINT never reaches the suite | `PcovRestarter` re-exec | Parent ignores it; the child holds PHPUnit's handler. CI `timeout`/Ctrl-C will not stop a run |
+| Structural drift never announced sequentially | `src/Plugins/Tia.php:1178-1181` | `enterRecordMode()` prints a bare `Running in TIA mode.`; `renderFreshGraph()` (`fresh graph (composer.lock changed)`) only runs under `--parallel` or coverage piggyback |
+| ~~Replay clobbers cached `time`~~ | write path | **Struck in phase four — does not reproduce**, sequentially or in parallel. Both write paths route through `resultTime()`; a replay with every cached `time` sentinelled writes nothing |
+| ~~`pest --parallel` without `--tia` writes nothing~~ | G3, G6 | **Closed in phase four.** Workers flush their results through `requestWorkerResults()`, so a parallel run refreshes and prunes exactly like the sequential run of the same command |
+| ~~`--tia --parallel --filter`/`--shard` record nothing~~ | G2, G8 | **Closed in phase four** (partial parity landed first, complete parity with the row above) |
+| `--min=50` without `--coverage` is a silent no-op | — | — |
+| `pest --repeat=2` is not a Pest option | J11 | Case unrunnable as written; drop it or add the option |
+
+### 6. Test-harness gaps to close before re-running
+
+- The playground has no `UsesClass`, `->note()`, `->flaky()`, `->issue()`, `->pr()`, `->ticket()` or
+  `->assignee()` annotations, so **C19, C23–C28, C37–C39 matched zero tests** and their
+  graph-invariant assertions proved nothing. Add annotated fixtures to make those rows load-bearing.
+- Use **sentinel patching** (rewrite every cached entry to `time=9.999 assertions=42`, then see which
+  entries get overwritten) as the discriminator. It is the only way to tell "wrote identical values"
+  from "wrote nothing". A canary test absent from `edges` is unreliable under `--filter` because it
+  never matches the filter and so never runs.
+- `--tia` on a clean green tree can never cache a failure (unchanged tests replay rather than
+  execute); seeding one requires `--fresh` or an env-driven flaky fixture.
+- Comment-only edits to a test file are **not** changes (AST-level hashing). Use semantic edits.
+
+---
+
+## Part 2 — Full case matrix (target outcomes)
+
+Tiers: **COMPLETE** may change everything · **RESULTS-ONLY** (RO) may change only
+`baselines[<branch>].results` for tests that ran, and must never remove an entry, add a result for a
+test file absent from `edges`, or alter `sha`/`tree`/`edges`/`files`/`fingerprint` ·
+**HARD-SUPPRESSED** may change nothing.
+
+Status column: `PASS` = conforming today · `FIX` = must pass once the item above lands ·
+`SKIP` = case not runnable as written.
+
+### A — Setup & sanity
+
+| # | Case | Target outcome | Status |
+|---|---|---|---|
+| A1 | `composer show pestphp/pest` | version `dev-fix/tia-filtered` | PASS |
+| A2 | `pest --baseline` | prints an existing dir; exit 0 | PASS |
+| A3 | delete graph, `pest --tia` | graph.json created; one `edges` key per test file; one result per test | PASS |
+| A4 | `git status` after reset ritual | clean | PASS |
+| A5 | `extension_loaded("pcov")` | `true` | PASS |
+| A6 | delete graph, plain `pest` | no graph created | PASS |
+| A7 | delete graph, `pest --filter=adds` | no graph created | PASS |
+| A8 | two consecutive `pest --tia` | second replays everything; `sha` unchanged | PASS |
+
+### B — COMPLETE runs still write
+
+| # | Case | Target outcome | Status |
+|---|---|---|---|
+| B1 | `pest --tia` (clean) | replays; graph written; `sha` = `git rev-parse HEAD` | PASS |
+| B2 | `pest --no-tia` | results refreshed; prune applied; `sha`/`tree`/`edges` unchanged | PASS |
+| B3 | `pest` (plain) | same as B2 | PASS |
+| B4 | `pest --tia --fresh` | graph purged and rebuilt; `edges` rebuilt; `files` repopulated | PASS |
+| B5 | `pest --bail`, all green | COMPLETE — graph written, prune applied | PASS |
+| B6 | edit `Calculator.php`, `pest --tia` | `CalculatorTest` re-runs, others replay; `tree` updated | PASS |
+| B7 | delete `trio three`, `pest --tia` | its result pruned; `trio one`/`two` remain | PASS |
+| B8 | delete `GreeterTest.php`, `pest --tia` | result and edges survive (missing-file prune is `--fresh`-only) | PASS |
+| B9 | B8 then `pest --tia --fresh` | entry gone; `files` drops `Greeter.php` too | PASS |
+| B10 | `pest --tia` twice | `time` differs; statuses stable | PASS |
+| B11 | add a test file, `pest --tia` | new `edges` key + new result appear | PASS |
+| B12 | `pest --tia --coverage` | completes; graph written | PASS |
+
+### C — Selection narrowing → RESULTS-ONLY
+
+All rows: RO invariants hold. "Notice" = `TIA does not apply to partial runs — running the selected tests directly.`
+
+| # | Case | Target outcome | Status |
+|---|---|---|---|
+| C1 | `pest --filter="adds numbers"` | RO; no notice | PASS |
+| C2 | `pest --tia --filter="adds numbers"` | RO; notice | PASS |
+| C3 | `pest --filter="trio one"` | RO; `trio two`/`three` byte-identical | PASS |
+| C4 | `pest --filter="trio"` | RO; all three update; nothing else does | PASS |
+| C5 | `pest --exclude-filter="Feature"` | RO; no notice; no prune | PASS |
+| C6 | `pest --tia --exclude-filter="Feature"` | RO; notice | PASS |
+| C7 | `pest --group=smoke` | RO; no notice | PASS |
+| C8 | `pest --tia --group=smoke` | RO; notice | PASS |
+| C9 | `pest --exclude-group=smoke` | RO; no notice; no prune | PASS |
+| C10 | `pest --tia --exclude-group=smoke` | RO; notice | PASS |
+| C11 | `pest tests/Unit` | RO; no notice; Feature entry not pruned | PASS |
+| C12 | `pest --tia tests/Unit` | RO; notice | PASS |
+| C13 | `pest tests/Unit/TrioTest.php` | RO; no notice | PASS |
+| C14 | `pest --tia tests/Unit/TrioTest.php` | RO; notice | PASS |
+| C15 | `pest --testsuite=Unit` | RO; no notice | PASS |
+| C16 | `pest --tia --testsuite=Unit` | RO; notice | PASS |
+| C17 | `pest --tia --exclude-testsuite=Feature` | RO; notice | PASS |
+| C18 | `pest --tia --covers='App\Services\Calculator'` | RO; notice | PASS |
+| C19 | `pest --tia --uses='App\Services\Calculator'` | RO; notice | PASS (vacuous — needs fixture) |
+| C20 | `pest --tia --test-suffix=Test.php` | RO even though all tests run; `edges`/`files`/`n` unchanged | PASS |
+| C21 | `pest --dirty` with an uncommitted test edit | RO; no notice | PASS |
+| C22 | `pest --tia --dirty` | RO; notice | PASS |
+| C23 | `pest --tia --todos` | RO; notice | PASS (vacuous) |
+| C24 | `pest --tia --notes` | RO; notice | PASS (vacuous) |
+| C25 | `pest --tia --flaky` | RO; notice | PASS (vacuous) |
+| C26 | `pest --tia --issue=123` | RO; notice | PASS (vacuous) |
+| C27 | `pest --tia --pr=1` | RO; notice | PASS (vacuous) |
+| C28 | `pest --tia --pull-request=1` | RO; notice | PASS (vacuous) |
+| C29 | `pest --tia --shard=1/2` | RO; notice; no prune | PASS |
+| C30 | `pest --tia --shard=2/2` | RO; notice; C29+C30 covers the suite; neither prunes | PASS |
+| C31 | `->only()` on `trio one`, `pest --tia` | RO; no notice; siblings untouched | PASS |
+| C32 | `->only()` on `trio one`, plain `pest` | RO; no notice | PASS |
+| C33 | `pest --tia --filtered --filter=adds` | RO; notice; filtered yields to narrowing | PASS |
+| C34 | `PEST_TIA=1 pest --filter=adds` | RO; notice | PASS |
+| C35 | `PEST_TIA_FILTERED=1 pest --filter=adds` | RO; notice (regression guard) | PASS |
+| C36 | `pest --filtered --filter=adds` | RO; notice | PASS |
+| C37 | `pest --tia --ticket=X` | RO; notice. `--ticket` **is** a real option (`src/Plugins/Snapshot.php:83`) — it narrows legitimately | PASS (vacuous) |
+| C38 | `pest --tia --assignee=X` | RO; notice (`src/Plugins/Snapshot.php:81`) | PASS (vacuous) |
+| C39 | `pest --tia --todo` | RO; notice; matches nothing | PASS (vacuous) |
+
+### D — Truncation → RESULTS-ONLY
+
+D1–D5, D11–D13, D16 precondition: `trio one` broken. D6–D10 run against a green suite so the `--stop-on-*` trigger is the only narrowing.
+
+| # | Case | Target outcome | Status |
+|---|---|---|---|
+| D1 | `pest --bail` | RO; `trio one` = `status=7`; siblings survive unchanged | PASS |
+| D2 | `pest --retry` | RO; siblings survive | PASS |
+| D3 | `pest --stop-on-failure` | RO | PASS |
+| D4 | `pest --stop-on-defect` | RO | PASS |
+| D5 | `pest --stop-on-error` (no error occurs) | COMPLETE — nothing stopped it | PASS |
+| D6 | `pest --stop-on-warning` | RO when it fires. Warning stored as `status=0`, not `6` | PASS |
+| D7 | `pest --stop-on-risky --disallow-test-output` | RO; `status=5` | PASS |
+| D8 | `pest --stop-on-skipped` | RO; `status=1` | PASS |
+| D9 | `pest --stop-on-incomplete` | RO; `status=2` | PASS |
+| D10 | `pest --stop-on-deprecation` | RO. Deprecation stored as `status=0`, not `4` | PASS |
+| D11 | `pest --tia --bail` | RO | PASS |
+| D12 | `pest --bail --filter=trio` | RO (narrowed *and* truncated) | PASS |
+| D13 | `stopOnFailure="true"` in `phpunit.xml`, plain `pest` | RO — caught via `stoppedEarly()`, not flag matching | PASS |
+| D14 | D13 config, green suite | COMPLETE | PASS |
+| D15 | `pest --bail`, last test in run order fails | RO — over-conservative but safe; nothing was skipped | PASS |
+| D16 | `pest --tia --filtered --bail`, broken affected test | RO | PASS |
+
+### E — Result merge semantics
+
+| # | Case | Target outcome | Status |
+|---|---|---|---|
+| E1 | cached `flaky`=7, `FLAKY_OK=1 pest --filter=flaky` | flips to `status=0`; all other results byte-identical | PASS |
+| E2 | cached `flaky`=0, `pest --filter=flaky` (env unset) | flips to `status=7` | PASS |
+| E3 | after E1, `pest --tia --filtered` clean | `No affected tests found`; zero graph delta | PASS |
+| E4 | after E2, `pest --tia --filtered` | re-runs, `from 1 previously unsuccessful test` | PASS |
+| E5 | any partial run | `assertions` and `time` update for the test that ran | PASS |
+| E6 | any partial run | `message` of untouched tests unchanged | PASS |
+| E7 | two sequential partial runs on different tests | each updates only its own entry; both persist | PASS |
+| E8 | `pest --filter="trio one"` | siblings keep exact `status`/`time`/`assertions`/`message` | PASS |
+| E9 | partial run of a `->skip()`ed test | `status=1` | PASS |
+| E10 | partial run of a `->todo()` test | `status=1`, `assertions=0`, `message="__TODO__"` | PASS |
+| E11 | partial run of a risky test | `status=5` | PASS |
+| E12 | any partial run | `fingerprint` byte-identical | PASS |
+| E13 | dataset test, `--filter` matching one row | that row updates; other rows survive (the old prune bug) | PASS |
+| E14 | dataset test, full `--tia` after deleting a row | the deleted row is pruned | PASS |
+
+### F — Guard rails
+
+| # | Case | Target outcome | Status |
+|---|---|---|---|
+| F1 | test absent from `edges`, `pest --filter="brand new"` | no result recorded | PASS |
+| F2 | complete `pest --tia` first, then the same filter | result is recorded | PASS |
+| F3 | `pest --mutate --path=app/Services --covered-only` | statuses/`edges`/`sha`/`tree`/`files` identical; only `time` may change | PASS |
+| F4 | `pest --mutate --parallel --path=… --covered-only` | same (observed: zero delta) | PASS |
+| F5 | weakened test so a mutant survives, `pest --mutate` | no status change in the baseline | PASS |
+| F6 | `pest --mutate` with the graph deleted | no graph created | PASS |
+| F7 | mutation subprocess env | carries `PEST_MUTATION_TESTING`; `--mutate` stripped from argv | PASS |
+| F8 | grep baseline after `--mutate` | no mutation-flavoured messages | PASS |
+
+### G — Parallel
+
+| # | Case | Target outcome | Status |
+|---|---|---|---|
+| G1 | `pest --tia --parallel` (clean) | COMPLETE — graph written | PASS |
+| G2 | `pest --tia --parallel --filter=adds` | RO | PASS |
+| G3 | `pest --parallel --bail`, `trio one` broken | RO; siblings survive | PASS |
+| G4 | `pest --tia --parallel --bail` | RO | PASS |
+| G5 | `pest --tia --filtered --parallel` after a source edit | narrows to affected; writes | PASS (but see G12 — it strips edges) |
+| G6 | `pest --tia --parallel` | worker results reach the parent baseline | PASS |
+| G7 | `->only()` + `pest --tia --parallel` | RO | PASS |
+| G8 | `pest --tia --parallel --shard=1/2` | RO | PASS |
+| G9 | broken test in one worker, `pest --parallel --bail` | whole run is RO, not just that worker's slice | PASS |
+| G10 | `pest --parallel --retry` | `InvalidOption`; graph untouched | PASS |
+| G11 | `pest --tia --parallel --fresh` | graph rebuilt | PASS |
+| G12 | `edges` after `pest --tia` vs `pest --tia --parallel --fresh` | **equivalent edge sets** (`files=25` both) | **FIX (item 1)** |
+
+### H — Baseline key / branch resolution
+
+| # | Case | Target outcome | Status |
+|---|---|---|---|
+| H1 | `pest --tia` on `master` | only a `master` key | PASS |
+| H2 | plain `pest` on `master` | writes `master`, not `main` | PASS |
+| H3 | `pest --bail` truncated on `master` | no `main` key minted | PASS |
+| H4 | `pest --filter=adds` on `master` | no `main` key minted | PASS |
+| H5 | `git branch -m main`, full `pest --tia` | single `main` key | PASS |
+| H6 | `git checkout -b feature/x`, `pest --tia` | `feature/x` key appears; reads fall back to the existing baseline | PASS |
+| H7 | detached HEAD, `pest --tia` | falls back to the `main` key for both reads and writes; no `HEAD` key | PASS |
+| H8 | after every C and D case | no baseline key other than the real branch | PASS |
+| H9 | non-git dir, `pest --tia` | `MissingDependency` — `The feature "Tia mode" requires "git".` | PASS |
+| H10 | non-git dir, plain `pest` | runs normally; no baseline dir created | PASS |
+
+### I — Filtered mode
+
+| # | Case | Target outcome | Status |
+|---|---|---|---|
+| I1 | clean + green, `pest --tia --filtered` | `No affected tests found`; zero graph delta | PASS |
+| I2 | edit `Calculator.php` | only `CalculatorTest` runs | PASS |
+| I3 | cached failure, clean tree | re-runs it, `from 1 previously unsuccessful test` | PASS |
+| I4 | I2 with sentinels | `tree` updated; exactly one entry rewritten; all others retained | PASS |
+| I5 | `pest --tia --filtered --parallel` | same narrowing as I2 **and `edges` unchanged** | **FIX (item 1)** |
+| I6 | `PEST_TIA_FILTERED=1 pest --tia` | identical delta to I4 | PASS |
+| I7 | `pest --tia --filtered tests/Unit` | explicit path wins; filtered off; RO; notice | PASS |
+| I8 | `pest --tia --filtered --coverage-text` | filtered mode disabled by an active coverage report | **FIX (item 3)** |
+| I9 | cached failure whose test file was deleted | WARN `could not be located on disk`; falls back to the full suite with replay | **FIX (item 2)** |
+| I10 | `pest --tia --filtered` with no baseline yet | records a baseline instead of filtering | PASS |
+| I11 | edit a Blade view a Feature test renders | the Feature test is selected | PASS |
+| I12 | edit `composer.lock` | fingerprint drift → full rebuild (and the drift reason should be printed — item 5) | PASS |
+
+### J — Interactions & regressions
+
+| # | Case | Target outcome | Status |
+|---|---|---|---|
+| J1 | `pest --tia --fresh --filter=adds` | graph **not** purged; RO | PASS |
+| J2 | `pest --tia --refetch --filter=adds` | refetch not performed; RO | PASS |
+| J3 | `pest --no-tia --filter=adds` | RO — narrowing wins over `--no-tia`; no notice | PASS |
+| J4 | `pest --tia --no-tia` | TIA disabled; COMPLETE | PASS |
+| J5 | `<groups><exclude><group>integration</group></exclude></groups>`, `pest --tia` | COMPLETE, no notice — an always-in-force filter applies to baseline runs too | PASS |
+| J6 | `pest --tia --compact` | COMPLETE | PASS |
+| J7 | `pest --tia -v` | COMPLETE | PASS |
+| J8 | `pest --tia --profile` | COMPLETE | PASS |
+| J9 | `pest --tia --order-by=random` | COMPLETE | PASS |
+| J10 | `pest --tia --random-order-seed=1234` | COMPLETE | PASS |
+| J11 | `pest --tia --repeat=2` | COMPLETE — repetition is not narrowing | **SKIP** — `--repeat` is not a Pest option |
+| J12 | `pest --filter=adds` twice | only the executed test's `time` differs; rest byte-identical | PASS |
+| J13 | `pest --tia --min=50` | COMPLETE | PASS |
+| J14 | SIGINT mid-suite | RO — an interrupted run is truncated | PASS (signal must go to the re-exec'd child — item 5) |
+| J15 | delete the graph, `pest --tia --filtered` | records a baseline rather than erroring | PASS |
+| J16 | corrupt `graph.json`, `pest --tia` | recovers by rebuilding; no crash | PASS |
+
+---
+
+## Re-run procedure
+
+```bash
+cd /Users/nunomaduro/Work/projects/playground/laravel
+GRAPH="$(PAO_DISABLE=1 ./vendor/bin/pest --baseline)/graph.json"
+
+# per case
+git checkout -q . && git clean -qfd tests app
+rm -rf "$(PAO_DISABLE=1 ./vendor/bin/pest --baseline)"
+PAO_DISABLE=1 ./vendor/bin/pest --tia >/dev/null 2>&1
+# sentinel-patch every result to time=9.999 assertions=42, snapshot, run the case, diff
+```
+
+Every pest invocation must be prefixed with `PAO_DISABLE=1` (the app has `laravel/pao`, which emits
+JSON when it detects an agent). The shell is zsh — build commands with arrays or `eval`; unquoted
+`$args` does not word-split.

PLAN_PHASE_FIVE.md

@@ -0,0 +1,312 @@
+# TIA deep audit — phase five
+
+## Your task
+
+Phases one through four fixed the defects that were *reported*. This phase is the opposite shape: go
+looking. Read TIA's read/write path adversarially, find what is wrong or fragile, and leave behind a
+scenario suite that covers the edges nobody has exercised yet.
+
+Two deliverables, both required:
+
+1. **A ranked findings list.** Every finding needs a *reproduction*, not a reading of the code. A
+   finding you cannot reproduce is a hypothesis — say so and rank it separately.
+2. **New scenario tests** in `tests/Features/Tia/*`, covering the edges you probed. Rows that pass go
+   in the repo (they are the regression net). Rows that fail stay in your scratchpad until the fix
+   lands — **never commit a red test.**
+
+Work in passes, and **report between passes** rather than at the very end:
+
+- **Pass A** — reproduce the leads in Part 3 below. Report which are real.
+- **Pass B** — your own hunt: the invariants in Part 2, attacked with inputs nobody tried.
+- **Pass C** — fixes, smallest first, each with the row that pins it.
+
+Fix what is clearly a defect with an obvious correct answer. **Stop and ask** when the fix is a
+behaviour *choice* (what should TIA do when two runs race for one graph?) — those are Nuno's calls,
+and a reproduction with a crisp yes/no question is worth more than a guessed fix.
+
+---
+
+## Part 1 — The harness
+
+### 1.1 What TIA is
+
+Test Impact Analysis. `pest --tia` records a dependency graph (test file → source files it touched)
+plus a per-branch baseline of results, then on later runs replays the tests whose dependencies did not
+change. State lives in a per-project dir under `~/.pest/tia/`; `graph.json` is the whole thing.
+
+Source of truth: `src/Plugins/Tia.php` (the plugin, ~1900 lines) and `src/Plugins/Tia/Graph.php` (the
+graph model + read/write API). Supporting: `src/Plugins/Tia/ChangedFiles.php` (git), `Fingerprint.php`
+(environment/structure hashing), `State.php` (the state dir).
+
+Read `PLAN.md`, `PLAN_PHASE_TWO.md`, `PLAN_PHASE_THREE.md`, `PLAN_PHASE_FOUR.md` first — in that
+order. They carry the history, the tier contract, and the decisions already made. Struck-through rows
+are fixed; do not re-report them.
+
+### 1.2 The scenario harness
+
+`tests/Features/Tia/*` scaffold a throwaway git project into a temp dir, run a **real `pest`
+subprocess** against it, and diff the graph it wrote. Everything lives in `tests/Fixtures/Tia/`:
+
+| Class | What it gives you |
+|---|---|
+| `Project` | `make(branch, overlay:)`, `withoutGit()`, `seed(branch, sentinel:, failing:)`, `seedFor($root, …)`, `pest(...$args)`, `pestWithEnvironment($dir, $env, ...$args)`, `pestIn($dir, ...)`, `write($rel, $contents)`, `path($rel)`, `graph()`, `branchKeys()`, `graphDir()`, `graphExists()`, `snapshot()`, `delta()`, `mutateGraph(fn)`, `addBaseline($branch)`, `worktree($branch)`, `destroy()`, `destroyAll()`, `SEQUENTIAL_AND_PARALLEL` |
+| `GitRepo` (`$project->git()`) | `switchTo($b, new:)`, `rename($from, $to)`, `detach()`, `config($k, $v)`, `addOrigin()`, `removeOrigin()`, `setOriginHead($b)`, `unsetOriginHead()`, `worktree()`, `sha()`, `branchNames()` |
+| `GraphDelta` (`$project->delta()`) | `writtenCount()`, `added()`, `removed()`, `branchKeys()`, `baselineUntouched($b)`, `shaMoved()`, `treeMoved()`, `edgesMoved()`, `filesMoved()`, `fingerprintMoved()`, `structureMoved()`, `isResultsOnly()`, `isHardSuppressed()`, `summary()` |
+| `PestResult` (returned by `pest()`) | `replayed()`, `uncached()`, `affected()`, `tally()`, `output`, `exitCode`, `describe()` |
+
+The fixture app is 3 test files / **6 tests** (`Project::TOTAL_TESTS`); `Project::EDGES` and
+`Project::TESTS` describe the graph `seed()` writes. `Project::testId($file, $description)` builds a
+result key. Overlays in `tests/Fixtures/Tia/overlays/<name>/` supply a different `tests/Pest.php` —
+that is how you configure `pest()->tia()->…` for a scenario.
+
+**If the fixture cannot express your case, extend the fixture.** A new `GitRepo` verb or a new overlay
+is a legitimate part of the deliverable — several findings below need one. Do not water down a
+scenario to fit the current helpers.
+
+### 1.3 The sentinel discriminator — read before writing any assertion
+
+`seed()` writes a graph **and then rewrites every cached result to `time=9.999`, `assertions=42`**
+(only where assertions are non-zero — risky/skipped/incomplete statuses are *derived* from "performed
+no assertions", so falsifying those would rewrite the status on replay), then snapshots. Therefore:
+
+- `$delta->writtenCount()` is the only reliable way to tell **"replayed"** from **"executed and wrote
+  back the same values"**. `0` means nothing was written.
+- `isResultsOnly()` = no structure moved, no `sha`/`tree` movement, nothing added or removed.
+- `isHardSuppressed()` = the graph is byte-identical.
+- A replayed suite reports inflated assertion counts (6 tests × 42). That is the sentinel, not a bug.
+
+The three write tiers, unchanged since phase two:
+
+- **COMPLETE** — may change everything.
+- **RESULTS-ONLY** — may change only `baselines[<branch>].results` for tests that ran; never removes
+  an entry, never adds a result for a test file absent from `edges`, never touches
+  `sha`/`tree`/`edges`/`files`/`fingerprint`.
+- **HARD-SUPPRESSED** — may change nothing.
+
+### 1.4 Running them
+
+They are in the `integration` group (`tests/Pest.php`), so `composer test:unit` skips them. **A
+directory argument finds nothing** — pass files, space-separated, as separate argv entries:
+
+```bash
+PAO_DISABLE=1 php84 bin/pest tests/Features/Tia/DefaultBranchReplay.php tests/Features/Tia/DefaultBranchResolution.php \
+  tests/Features/Tia/DefaultBranchWriteTier.php tests/Features/Tia/PartialRunWriteTier.php \
+  tests/Features/Tia/CompleteRunWriteTier.php tests/Features/Tia/FilteredMode.php
+
+PAO_DISABLE=1 php   bin/pest <same list>
+```
+
+**Both interpreters must be green.** `php84` is 8.4.x with **no pcov** — that is what CI has
+(`.github/workflows/tests.yml` sets `coverage: none`). `php` is 8.5.x with pcov — that is the dev
+machine. Any assertion that depends on a coverage driver passes locally and fails in CI. Concretely:
+
+- A **cold recording run writes no graph at all** without pcov/xdebug (it prints `Running in TIA mode,
+  however TIA is skipped as it needs ext-pcov or Xdebug`). **Seed a graph, never record one**, unless
+  the driver *is* the point of the row.
+- A **PHP source file edit** driverless triggers `Detected PHP source changes but no coverage driver
+  is available` → full suite, `affected=0`. Edit *test* files, not `app/` files.
+
+`PAO_DISABLE=1` is mandatory on every pest invocation and every probe: `laravel/pao` emits JSON under
+agents and corrupts the captured output.
+
+Baseline before you touch anything: **72 passed** on both interpreters, at `HEAD` plus the phase-four
+working-tree changes. If that number does not reproduce, stop and say so.
+
+### 1.5 Measure before you assert
+
+Never guess an expectation from reading the code. Probe first, in your scratchpad:
+
+```php
+<?php
+require '/Users/nunomaduro/Work/projects/pestphp/pest/vendor/autoload.php';
+use Tests\Fixtures\Tia\Project;
+
+$p = Project::make('master');
+$p->seed('master');
+$p->git()->switchTo('feature-x', new: true);
+$r = $p->pest('--tia');
+printf("tally=[%s] keys=[%s] %s\n", $r->tally(), implode(',', $p->branchKeys()), $p->delta()->summary());
+$p->destroy();
+```
+
+`PAO_DISABLE=1 php probe.php`. One project per scenario; always `destroy()`; `Project::destroyAll()`
+at the end. Run every probe on **both** interpreters before believing it.
+
+### 1.6 Ground rules
+
+- **Do not** run `composer test`. It takes minutes and you do not need it.
+- **Do not** run `composer update:snapshots`. `tests/.snapshots/success.txt` and the tally in
+  `tests/Visual/Parallel.php` encode the whole suite's result, so every row you add breaks them.
+  That is expected — **report that they need regenerating and let Nuno run it.**
+- **Do not commit.** Leave the tree dirty.
+- **Do not touch the playground's `vendor/`.** If a finding truly needs the playground (25 real tests,
+  real timings), say so and ask — syncing it is a manual step Nuno owns.
+- Run `vendor/bin/phpstan analyse <the files you touched> --memory-limit=-1 --no-progress` and
+  `vendor/bin/pint <the files you touched>` before reporting. **Scope both to files you changed** —
+  Nuno edits `src/` live, and a repo-wide fixer will revert his work.
+- The fixture projects **hardlink `src/`**. If you edit `src/` while a scenario run is in flight,
+  those rows go red for no reason. Finish the edit, then run.
+- Keep scratch probes out of the repo.
+- **Never weaken an existing assertion to make something pass.** If an existing row contradicts your
+  fix, that is a finding: report the contradiction and ask.
+
+---
+
+## Part 2 — The invariants to attack
+
+These are the properties TIA is supposed to have. Each one is a place to hunt: construct the input
+that breaks it.
+
+1. **Parity.** `pest <args>` and `pest --parallel --processes=N <args>` must leave the **same graph**
+   and reach the same tally. This is a hard rule from Nuno — sequential and parallel must *always*
+   agree. `Project::SEQUENTIAL_AND_PARALLEL` is the dataset that encodes it; consider making every
+   new write-path row use it. Vary `--processes` (1, 2, 8 — more processes than test files).
+2. **The tiers hold.** Every command lands in exactly one of COMPLETE / RESULTS-ONLY /
+   HARD-SUPPRESSED, and stays inside it. Combinations are where this frays: `--fresh --parallel
+   --filter`, `--bail --shard`, `--filtered` plus an explicit path, `--tia --no-tia`, `--retry`.
+3. **Replay is faithful.** A replayed test reports the same status, message, time and assertion count
+   as the recorded run — and replay itself writes nothing. Statuses beyond pass/fail are the soft
+   spot: skipped, incomplete, risky, notice, deprecation, warning, todo, and a test that failed with a
+   multi-line message.
+4. **Reads never write.** No read path may mint a baseline key, move a `sha`, or create the state dir.
+   A project that has never run TIA must gain nothing from a plain `pest` run.
+5. **A branch never corrupts another branch's baseline.** Writes land on the branch that ran, and
+   only there. Reads may *layer* the default branch under the current one (phase four, B1) — but that
+   layering must not leak into a write.
+6. **Nothing is unbounded.** Baseline keys, `files`, `edges`, worker partials, state files: something
+   must eventually reclaim them, or the graph grows forever.
+7. **A hostile state dir cannot break a run.** Corrupt, truncated, empty, wrong-schema, read-only,
+   absent, or *someone else's* `graph.json` — the suite still runs and exits on the tests' merit.
+8. **Git shapes are all handled.** Detached HEAD (read-only, per phase four B2), worktrees, no commits
+   yet, no `origin`, no `origin/HEAD`, submodules, a repo whose root is above the pest project (that
+   one panics deliberately — `TiaRequiresRepositoryRoot`), renamed branches, deleted branches.
+
+---
+
+## Part 3 — Leads to reproduce first (Pass A)
+
+These came out of reading the phase-four diff. **Each is a hypothesis, not a finding** — several may
+turn out to be fine. Reproduce or refute each, in order, and report the measured delta either way.
+
+### L1 — the per-entry fallback may resurrect a pruned or deleted test · **highest value**
+
+Phase four made `Graph::baselineFor()` layer the branch's results **over** the default branch's. Two
+consequences worth probing:
+
+- `pruneStaleResults()` unsets an entry from `baselines[branch].results`. The very next read layers the
+  **fallback's** entry for that same test id back in. So a delete may not stick from a branch's point
+  of view.
+- `hasUnlocatedTestsToRerun()` returns true when a *failing* cached result names a file that no longer
+  exists on disk — and that forces a **full suite**. If a feature branch deletes a test file that
+  fails on the default branch, the merged read still carries master's entry pointing at the now-absent
+  file. Suspected symptom: **that branch runs the full suite forever.**
+
+Probe: seed master with a failing test (`seed('master', failing: [...])`), branch off, delete the test
+file that holds it, run `--tia`, and compare `replayed`/`uncached`/`affected` against the same shape
+where the failure is on the branch instead. Then the mirror case with a green deleted test.
+
+### L2 — environment drift clears one branch's results and the fallback serves them right back
+
+`reconcileFingerprint()` on environmental drift calls `$graph->clearResults($this->branch)` and warns
+`results dropped, edges reused`. On a feature branch that clears only the *branch's* results — the
+layered read then re-serves the default branch's results, which were recorded under the **old**
+environment. Suspected symptom: the drop is a no-op on any branch that is not the default one.
+
+Probe: `pestWithEnvironment()` to shift whatever `Fingerprint` reads as environmental (check
+`Fingerprint::environmentalDrift()` for the exact keys), on the default branch vs a feature branch,
+and compare what survives.
+
+### L3 — `sha`/`tree` may be taken from a different commit than the results
+
+`baselineFor()` takes `sha` from the branch when non-null and otherwise from the fallback; `tree`
+likewise when the branch's is empty. So a branch can end up computing "what changed since" against the
+**default branch's** recorded sha while reading its own results — or vice versa. Is there a shape where
+that under-reports changed files (a test replays that should have run)? That is the dangerous
+direction: a false replay is a lie about a passing test.
+
+Probe: seed master, commit a test edit on the branch so the shas genuinely differ, and check whether
+the edited test is treated as affected.
+
+### L4 — pruning from merged worker partials
+
+Phase four made a complete `--parallel` run write and prune from merged worker results. The stated
+safety net is that `pruneStaleResults()` only prunes files it saw results for, and that a truncated
+worker sets results-only. Try to defeat it: a worker that reports results for a test file it did not
+finish. Candidate shapes — a fatal error mid-file (not an assertion failure), `exit()` inside a test,
+an uncaught error in an `afterEach`, a test that kills its own process, `--stop-on-failure` variants,
+`--processes` greater than the number of test files.
+
+### L5 — two runs racing for one `graph.json`
+
+`State::write()` has no locking. Two pest processes on one project (a watcher plus a manual run, two CI
+jobs sharing a cache dir, `--parallel` where the parent writes while a straggler worker flushes) can
+lose an update or interleave. Probe by launching two `pest --tia` subprocesses concurrently against one
+project and diffing. **This is likely a design decision, not a bug** — if you reproduce a lost update,
+report it as a question (accept last-writer-wins, or lock?), do not invent a locking scheme.
+
+### L6 — a detached HEAD still purges on structural drift
+
+Phase four made a detached HEAD read-only *for writes* (`saveGraph()` refuses). But
+`reconcileFingerprint()` deletes the whole graph on structural drift (`Tia.php`, the
+`state->delete(KEY_GRAPH)` in the structural branch) before any write happens. So `--tia` from a
+detached checkout with a changed `composer.lock` can still wipe the default branch's baseline. Confirm
+it, then ask: should the detached-HEAD guard cover the purge too?
+
+### L7 — statuses that may not round-trip
+
+`PLAN.md` §5 claims warnings and deprecations record as `status=0`, and that codes `6` and `4` look
+unreachable. `Graph::getResult()` maps 0–8 to `TestStatus`. Verify each status end to end: record it,
+replay it, and check the replayed run reports the same thing — including the message, the exit code,
+and whether `shouldRerunStatus()` decides to re-execute it. `failOnRisky` / `failOnSkipped` /
+`displayDetailsOn*` change that decision, so an overlay that flips those config flags is part of this.
+A status that replays as a pass would be the most serious class of bug in TIA.
+
+### L8 — branch-key hygiene
+
+Nothing appears to reclaim baseline keys. Probe: create and delete 5 branches, rename one
+(`GitRepo::rename()`), and check what `branchKeys()` holds afterwards. Also try names that stress the
+JSON keying: `feature/x/y` (already covered), a name differing from another only in case (macOS is
+case-insensitive — does the key match the ref?), a name with a space or a unicode character, a branch
+literally called `HEAD`, and a very long name. Then: is unbounded growth acceptable, or does this need
+a cap / GC? Ask rather than build.
+
+### L9 — `soleRecordedBranch()` as a fallback source
+
+When config, CI env and git all fail to name a default branch, resolution falls back to "the only
+branch in the graph". If that sole key was minted by a *narrowed* run on a feature branch (which phase
+four's B1 made a live possibility), the fallback now names a feature branch, and every other branch
+layers **its** results underneath. Probe: `withoutGit()` or `removeOrigin()` + no config, with a graph
+whose only key is `feature-x`.
+
+### L10 — the state dir as an adversary
+
+Beyond corrupt JSON (fixed in phase four by deleting it): a valid-JSON graph with `schema: 2`; a graph
+whose `files` and `edges` disagree; `results` entries with a `file` pointing outside the project root
+or at an absolute path from another machine; a `graph.json` that is a directory; a state dir with no
+write permission; `$HOME` unset. Each should degrade to "run the tests", never crash and never write
+garbage.
+
+---
+
+## Part 4 — Reporting
+
+**Between passes**, not just at the end. Per finding:
+
+- **Reproduced (yes / no / hypothesis only)**, with the exact command and the measured
+  `tally` + `delta()->summary()` on **both** interpreters.
+- **Severity**, and say why in one line. The scale that matters here: *a test wrongly replayed as
+  passing* (worst) > *cache silently useless, full suite forever* > *graph grows / stale data* >
+  *cosmetic*.
+- **Fixed / deferred / needs-a-decision**, and the row that pins it.
+- For anything needing a decision: **one yes/no question**, no essay.
+
+Close with:
+
+1. The count of `tests/Features/Tia/*` green on **both** `php84` (no pcov) and `php85` (pcov), against
+   the 72 baseline.
+2. Every row you added, and what invariant from Part 2 it defends.
+3. Which findings are still open, as yes/no questions.
+4. That `tests/.snapshots/success.txt` and the `tests/Visual/Parallel.php` tally need regenerating —
+   **do not regenerate them.**
+5. **What you looked at and found solid.** A list of attacks that did not break anything is a real
+   result: it tells the next phase where not to spend its time.

PLAN_PHASE_FOUR.md

@@ -0,0 +1,351 @@
+# TIA defect sweep — phase four
+
+## Your task
+
+Five defects in TIA's read/write path, found while building the repo's TIA scenario suite. One is
+confirmed and load-bearing (**B1**); four need a decision before a fix (**B2**–**B5**).
+
+Work **one bug at a time, in order**, and for each:
+
+1. **Reproduce it as a repo test first.** The reproduction is the deliverable even when the fix is
+   deferred — a red test that pins the exact symptom is worth more than a prose report. Do not commit
+   a red test to the suite; keep it in a scratch file until the fix lands (see Part 1.4).
+2. Confirm the measured numbers in this file still hold. They were taken at commit `4d3d0105` plus
+   the two uncommitted changes described in Part 2. If a number has moved, say so and stop.
+3. Fix, then re-run **the whole `tests/Features/Tia/*` set on two interpreters** (Part 1.3).
+4. **HARD STOP after B1.** Report the diff and wait — B1's fix changes `Graph`'s read semantics for
+   every caller, and Nuno wants to see it before B2–B5 pile on top.
+
+Per `CLAUDE.md`: do not run `composer test`, and do not regenerate snapshots unless told. Do not
+commit. Do not touch the playground's `vendor/`.
+
+---
+
+## Part 1 — The harness
+
+### 1.1 What exists
+
+`tests/Features/Tia/*` scaffold a throwaway git project into a temp dir, run a **real `pest`
+subprocess** against it, and diff the TIA graph it wrote. Everything lives in
+`tests/Fixtures/Tia/`:
+
+| Class | What it gives you |
+|---|---|
+| `Project` | `make(branch, overlay:)`, `withoutGit()`, `seed(branch, sentinel:, failing:)`, `pest(...$args)`, `pestWithEnvironment($dir, $env, ...$args)`, `pestIn($dir, ...)`, `write($rel, $contents)`, `graph()`, `branchKeys()`, `graphDir()`, `graphExists()`, `snapshot()`, `delta()`, `mutateGraph(fn)`, `addBaseline($branch)`, `worktree($branch)`, `destroyAll()` |
+| `GitRepo` (`$project->git()`) | `switchTo($b, new:)`, `rename($from, $to)`, `detach()`, `config($k, $v)`, `addOrigin()`, `removeOrigin()`, `setOriginHead($b)`, `unsetOriginHead()`, `worktree()`, `sha()`, `branchNames()` |
+| `GraphDelta` (`$project->delta()`) | `writtenCount()`, `added()`, `removed()`, `branchKeys()`, `baselineUntouched($b)`, `shaMoved()`, `treeMoved()`, `edgesMoved()`, `filesMoved()`, `fingerprintMoved()`, `structureMoved()`, `isResultsOnly()`, `isHardSuppressed()`, `summary()` |
+| `PestResult` (returned by `pest()`) | `replayed()`, `uncached()`, `affected()`, `tally()`, `output`, `exitCode`, `describe()` |
+
+The fixture app is 3 test files / **6 tests** (`Project::TOTAL_TESTS`), with `Project::EDGES` and
+`Project::TESTS` describing the graph `seed()` writes. `Project::testId($file, $description)` builds
+a result key.
+
+### 1.2 The sentinel discriminator — read this before writing an assertion
+
+`seed()` writes a graph **and then rewrites every cached result to `time=9.999`,
+`assertions=42`** (non-zero assertion counts only — risky/skipped/incomplete statuses are *derived*
+from "performed no assertions", so falsifying those would rewrite the status on replay), and takes a
+snapshot. Therefore:
+
+- `$delta->writtenCount()` is the only reliable way to tell **"replayed"** from **"executed and wrote
+  back the same values"**. `0` means nothing was written.
+- `isResultsOnly()` = no structure moved, no `sha`/`tree` movement, nothing added or removed.
+- `isHardSuppressed()` = the graph is byte-identical.
+
+Tiers, unchanged since phase two: **COMPLETE** may change everything · **RESULTS-ONLY** may change
+only `baselines[<branch>].results` for tests that ran, never removing an entry, never adding a result
+for a test file absent from `edges`, never touching `sha`/`tree`/`edges`/`files`/`fingerprint` ·
+**HARD-SUPPRESSED** may change nothing.
+
+### 1.3 Running them
+
+They are in the `integration` group (`tests/Pest.php:22`), so `composer test:unit` skips them. A
+**directory argument finds nothing** — pass files:
+
+```bash
+F="tests/Features/Tia/DefaultBranchReplay.php tests/Features/Tia/DefaultBranchResolution.php \
+   tests/Features/Tia/DefaultBranchWriteTier.php tests/Features/Tia/PartialRunWriteTier.php \
+   tests/Features/Tia/CompleteRunWriteTier.php tests/Features/Tia/FilteredMode.php"
+
+PAO_DISABLE=1 php84 bin/pest $F     # 8.4.23, NO pcov — this is what CI has
+PAO_DISABLE=1 php   bin/pest $F     # 8.5.8, pcov — this is what your machine has
+```
+
+**Both must be green.** `.github/workflows/tests.yml` sets `coverage: none`, so any assertion that
+depends on a coverage driver fails in CI while passing locally. Two tests were already caught by
+this. Concretely: a **cold recording run writes no graph at all** without pcov/xdebug (it prints
+`Running in TIA mode, however TIA is skipped as it needs ext-pcov or Xdebug`), and a **PHP source
+file edit** triggers `Detected PHP source changes but no coverage driver is available` → full suite,
+`affected=0`. Seed a graph instead of recording one, and edit *test* files rather than `app/` files,
+unless the point of the row is the driver itself.
+
+### 1.4 Measure before you assert
+
+Do not guess expectations from reading the code — every number in Part 3 came from a scratch probe.
+The pattern (put it in your scratchpad, not in the repo):
+
+```php
+<?php
+require '/Users/nunomaduro/Work/projects/pestphp/pest/vendor/autoload.php';
+use Tests\Fixtures\Tia\Project;
+
+$p = Project::make('master');
+$p->seed('master');
+$p->git()->switchTo('feature-x', new: true);
+$r = $p->pest('--tia');
+printf("tally=[%s] keys=[%s] %s\n", $r->tally(), implode(',', $p->branchKeys()), $p->delta()->summary());
+$p->destroy();
+```
+
+`PAO_DISABLE=1 php probe.php`. One project per scenario; always `destroy()`.
+
+---
+
+## Part 2 — What the code looks like right now
+
+Phase three landed default-branch resolution: `ChangedFiles::defaultBranch()`, the
+`pest()->tia()->defaultBranch()` config surface, `Graph::setFallbackBranch()` + `?string
+$fallbackBranch = null` on the seven read methods, and `Tia::resolveFallbackBranch()`
+(`Tia.php:~1776`) resolving **config → CI env (`CiDefaultBranch`) → git (`origin/HEAD`, then
+`init.defaultBranch` if the branch exists) → `soleRecordedBranch()`**, failing loudly when nothing
+can name it.
+
+On top of that, **two uncommitted changes** you will see in `git diff`:
+
+1. `TIA_RESULTS_ONLY` global — a *partial* parallel run with an existing graph now purges stale
+   worker partials, sets the global, and workers flush their results through the existing
+   `flushWorkerReplay()` / `mergeWorkerReplayPartials()` path; the parent writes them with
+   `complete: false`. Gated on a graph already existing, so a TIA-less project still creates no
+   baseline dir. This gave `--parallel --filter` parity with sequential — **and, per B1, handed it
+   the shadowing bug too.**
+2. `loadGraph()` emits `WARN The dependency graph could not be read — it will be rebuilt.` once per
+   parent process when `graph.json` exists but will not decode. Previously silent.
+
+62 scenario tests cover this and pass on both interpreters.
+
+---
+
+## Part 3 — The defects
+
+### B1 — a thin baseline key permanently shadows the default-branch fallback · **confirmed, priority 1**
+
+**Symptom.** Any *narrowed* run on a new branch (`--filter`, `--group`, a path, `--bail`, `--shard`,
+and now `--parallel --filter`) writes a baseline key holding only the tests that ran. From then on
+`--tia` on that branch reads that thin key instead of falling back to the default branch, so
+everything else is uncached — **one full suite per branch, forever**, which is the exact cost
+issue [#1823](https://github.com/pestphp/pest/issues/1823) was about, re-entering through a side door.
+
+**Measured** (fixture: 6 tests, graph seeded on `master`):
+
+```
+switch -c feature-x; pest --filter="adds two numbers"
+  → keys=[master,feature-x]        (feature-x holds 1 result)
+pest --tia
+  → 6 passed (6 assertions, 5 uncached, 1 replayed)      ← want: 6 replayed, 0 uncached
+
+same via: pest --parallel --processes=2 --filter="adds two numbers"   → identical
+```
+
+**Where.** `src/Plugins/Tia/Graph.php::baselineFor()` (~line 814):
+
+```php
+if (isset($this->baselines[$branch]))                                        return $this->baselines[$branch];
+if ($branch !== $fallbackBranch && isset($this->baselines[$fallbackBranch])) return $this->baselines[$fallbackBranch];
+```
+
+The fallback is all-or-nothing: it fires only when the branch has **no** key at all. The key itself
+is minted by `Graph::setResult()` → `ensureBaseline($branch)` (~599 / ~829), reached from
+`Tia::snapshotTestResults()` on partial runs.
+
+**Reproduction to add** (`tests/Features/Tia/DefaultBranchReplay.php`):
+
+```php
+test('a narrowed run on a new branch does not cost the fallback', function (): void {
+    $project = Project::make('master');
+    $project->seed('master');
+
+    $project->git()->switchTo('feature-x', new: true);
+    $project->pest('--filter=adds two numbers');
+
+    $result = $project->pest('--tia');
+
+    expect($result->replayed())->toBe(Project::TOTAL_TESTS, $result->describe())
+        ->and($result->uncached())->toBe(0, $result->describe());
+})->skipOnWindows();
+```
+
+Add the `--parallel --processes=2 --filter=…` variant as a second row (dataset), since the two write
+paths are different code.
+
+**Fix direction.** Make the fallback **per entry** rather than per baseline: in `baselineFor()`,
+when the branch has its own baseline *and* a distinct fallback baseline exists, return
+`results` = the branch's results **layered over** the fallback's (branch wins per test id), and take
+`sha`/`tree` from the fallback when the branch's are `null`/empty. `baselineFor()` is the single
+funnel for `recordedAtSha()`, `lastRunTree()`, `getResult()`, `getTime()`, `getAssertions()`,
+`testFilesToRerun()` and `hasUnlocatedTestsToRerun()`, so one change covers every reader. An
+alternative — never mint a key from a partial run — is smaller but loses the executed result
+entirely, which regresses the parity just gained.
+
+**Done when.** Both reproduction rows are green on both interpreters, and none of these move:
+
+- `the branch that ran gets its own key and the default branch keeps its baseline` — writes stay on
+  the real branch; the merge must be **read-only** and must not leak into `ensureBaseline()`/`setResult()`.
+- `a declared default branch that does not exist degrades to a full run` — with a fallback that names
+  nothing, a branch's own thin results must still be all you get.
+- `a detached HEAD replays without minting a branch key`, `writes nothing on a second run on the same
+  branch`, `filtered mode finds nothing to do…` (both rows) — a merged read must not make a clean
+  replay start writing.
+- The whole `PartialRunWriteTier.php` / `CompleteRunWriteTier.php` set — tier semantics are unchanged
+  by this fix.
+
+---
+
+### B2 — a partial run on detached HEAD writes into the default branch's baseline · **needs a decision**
+
+**Symptom.** With `HEAD` detached, `Tia::resolveBranch()` (`Tia.php:~1756`) sets
+`$this->branch = $changedFiles->currentBranch() ?? $this->fallbackBranch` — and that branch is used
+for **writes**. A `--tia` run in this state happens to be harmless (a clean replay writes nothing),
+but any run that *executes* tests writes their results into the default branch's baseline.
+
+**Measured.**
+
+```
+seed on master; git checkout --detach; pest --filter="adds two numbers"
+  → keys=[master]   w=1 struct:ok        ← master's baseline rewritten from a detached checkout
+seed on master; git checkout --detach; pest --tia
+  → keys=[master]   w=0                  ← read-only, as intended
+```
+
+**The decision.** `PLAN_PHASE_THREE.md` §2.3 **D3** recommended detached HEAD be *read-only*. If that
+still stands, suppress writes when `currentBranch()` is `null` (a dedicated flag — note
+`resultsOnlyWrites` is **not** enough, it still writes results). If Nuno prefers the current
+behaviour, add a test pinning it and close this out.
+
+**Reproduction** (`tests/Features/Tia/DefaultBranchWriteTier.php`), written for the read-only answer:
+
+```php
+test('a detached HEAD does not write into the default branch baseline', function (): void {
+    $project = Project::make('master');
+    $project->seed('master');
+
+    $project->git()->detach();
+    $project->pest('--filter=adds two numbers');
+
+    $delta = $project->delta();
+
+    expect($delta->baselineUntouched('master'))->toBeTrue($delta->summary())
+        ->and($project->branchKeys())->toBe(['master']);
+})->skipOnWindows();
+```
+
+---
+
+### B3 — an unreadable graph is never repaired on a machine with no coverage driver · **needs a decision**
+
+**Symptom.** A corrupt `graph.json` is now *reported* (Part 2, change 2) but only *rebuilt* when a
+coverage driver is present, because rebuilding means recording. Driverless, the file stays corrupt
+run after run and TIA is silently inert until someone deletes it by hand — while the WARN claims
+`it will be rebuilt`.
+
+**Measured** (`php84`, no pcov):
+
+```
+overwrite graph.json with '{not json'
+run 1: exit=0, 6 passed, file still '{not json'
+run 2: exit=0, 6 passed, file still '{not json'
+headline: "Running in TIA mode, however TIA is skipped as it needs ext-pcov or Xdebug"
+```
+
+**Options.** (a) delete the file when it cannot be decoded, so the next drivered run starts clean and
+the state dir does not carry a permanent landmine; (b) keep the file but reword the WARN when no
+driver is available. (a) is the honest one and costs one `State::delete()`.
+
+**Reproduction** (`tests/Features/Tia/FilteredMode.php`, extending the existing corrupt-graph row):
+
+```php
+expect($result->output)->toContain('The dependency graph could not be read')
+    ->and(file_get_contents($project->graphDir().'/graph.json'))->not->toBe('{not json');
+```
+
+Must pass on **both** interpreters — that is the whole point of the row.
+
+---
+
+### B4 — a complete `--parallel` run writes nothing and prunes nothing · **needs a decision**
+
+**Symptom.** With a graph present and TIA not flagged, a sequential run refreshes results and applies
+the prune; the same run under `--parallel` does neither, because the parent's `ResultCollector` is
+empty (results live in the workers) and workers only flush when they were told to record, replay, or
+— since Part 2's change — results-only for a *partial* run. So parallel CI contributes nothing to the
+cache, and a deleted test's entry survives forever.
+
+**Measured** (graph seeded on `master`, sentinelled):
+
+```
+pest                                  → w=6  +0 -0 struct:ok      (sequential baseline)
+pest --parallel --processes=2         → w=0  +0 -0 struct:ok      ← writes nothing
+delete a test, then:
+pest --parallel --processes=2         → w=0  +0 -0 struct:ok      ← and does not prune (sequential gives -1)
+pest --tia --parallel --processes=2   → w=0                       ← correct: everything replayed
+```
+
+**The decision.** Extending the `TIA_RESULTS_ONLY` mechanism to complete parallel runs is
+mechanically easy, but a *complete* run also prunes, and pruning from merged worker partials is the
+risky half: a worker that dies, or a shard that never ran, would look like "these tests no longer
+exist". If it is done, the prune must key off "every worker reported" and fall back to
+results-only when it cannot prove that. `PLAN.md` §5 lists this as a known gap, not a regression.
+
+**Reproduction** (`tests/Features/Tia/CompleteRunWriteTier.php`) — mirror the two sequential rows
+that already exist (`a complete run prunes a deleted test`, `--no-tia refreshes results…`) with
+`--parallel --processes=2` added, and assert the same deltas.
+
+---
+
+### B5 — G4 ("parallel replay clobbers cached `time`") no longer reproduces · **verify, then correct the record**
+
+**Symptom.** `PLAN_PHASE_THREE.md` §4.6 lists as still-present: *"parallel replay clobbers cached
+`time` on all non-executed tests — `mergeWorkerReplayPartials()` takes `$result['time']` verbatim,
+never routing through `resultTime()`"*. The repo fixture disagrees: after a parallel replay the
+sentinelled `time=9.999` / `assertions=42` survive on every non-executed test.
+
+**Measured.** `a parallel run merges worker results into the parent baseline` edits one test file,
+then runs `--tia --parallel --processes=2`: `2 affected, 4 replayed, w=2`. If replayed times were
+being clobbered, `w` would be `6`.
+
+**Why the record may be stale.** `flushWorkerReplay()` (`Tia.php:~1286`) already applies
+`resultTime()` **worker-side** before writing the partial, so the parent's verbatim read is reading
+values that were already corrected.
+
+**What to do.** Either find a shape where it still reproduces (the playground has 25 tests and real
+timings; the fixture has 6 and may be too small), or confirm it is fixed and strike it from §4.6.
+Add a direct row either way:
+
+```php
+test('a parallel replay keeps the recorded time of tests that did not run', function (): void {
+    $project = Project::make('master');
+    $project->seed('master');
+
+    $project->pest('--tia', '--parallel', '--processes=2');
+
+    $delta = $project->delta();
+
+    expect($delta->writtenCount())->toBe(0, $delta->summary())
+        ->and($delta->isResultsOnly())->toBeTrue($delta->summary());
+})->skipOnWindows();
+```
+
+---
+
+## Part 4 — Reporting
+
+Per bug: **reproduced (yes/no)** with the measured delta, **fixed (yes/no/deferred)**, and the test
+that now pins it. Close with:
+
+1. Whether all `tests/Features/Tia/*` are green on **both** `php84` (no pcov) and `php85` (pcov).
+2. Which of B2–B5 still need Nuno's decision, phrased as a yes/no question each.
+3. Whether `tests/.snapshots/success.txt` and the `tests/Visual/Parallel.php` tally now need
+   regenerating (they will, if you added rows) — **do not run `composer update:snapshots` unless
+   asked.**
+4. Anything you found that is not in this file.
+
+Leave the tree uncommitted and the scratch probes out of the repo.

PLAN_PHASE_SIX.md

@@ -0,0 +1,386 @@
+# TIA deep audit — phase six
+
+## Your task
+
+Phase five went looking rather than fixing what was reported, and found nine defects in the
+**read/write path and the state dir**. All nine are fixed and pinned by rows in the repo. It stopped
+there deliberately: roughly half of TIA was never opened. Phase six is that other half.
+
+Two deliverables, both required:
+
+1. **A ranked findings list.** Every finding needs a *reproduction*, not a reading of the code. A
+   finding you cannot reproduce is a hypothesis — say so and rank it separately.
+2. **New scenario tests** in `tests/Features/Tia/*`. Rows that pass go in the repo (they are the
+   regression net). Rows that fail stay in your scratchpad until the fix lands — **never commit a red
+   test.**
+
+Work in passes, and **report between passes** rather than at the very end:
+
+- **Pass A** — reproduce the leads in Part 3. Report which are real.
+- **Pass B** — your own hunt: the invariants in Part 2, attacked with inputs nobody tried.
+- **Pass C** — fixes, smallest first, each with the row that pins it.
+
+Fix what is clearly a defect with an obvious correct answer. **Stop and ask** when the fix is a
+behaviour *choice* — those are Nuno's calls, and a reproduction with a crisp yes/no question is worth
+more than a guessed fix.
+
+---
+
+## Part 1 — Where things stand
+
+### 1.1 What TIA is
+
+Test Impact Analysis. `pest --tia` records a dependency graph (test file → source files it touched)
+plus a per-branch baseline of results, then on later runs replays the tests whose dependencies did not
+change. State lives in a per-project dir under `~/.pest/tia/`; `graph.json` is the whole thing.
+
+Source of truth: `src/Plugins/Tia.php` (the plugin) and `src/Plugins/Tia/Graph.php` (the graph model +
+read/write API). Supporting: `ChangedFiles.php` (git), `Fingerprint.php` (environment/structure
+hashing), `Storage.php` / `FileState.php` (the state dir), `ResultCollector.php` (what a run observed),
+`Recorder.php` + `CoverageCollector.php` (how edges are recorded).
+
+Read `PLAN.md`, then `PLAN_PHASE_TWO.md` → `THREE` → `FOUR` → `FIVE` for the history and the tier
+contract. Struck-through rows are fixed; do not re-report them. **Section 1.2 below supersedes any
+phase-five row that contradicts it.**
+
+### 1.2 What phase five settled — do not re-report these
+
+Nine defects, all fixed, each with a row that fails if it comes back:
+
+| # | Defect | Fix | Pinned by |
+|---|---|---|---|
+| 1 | `pruneStaleResults()` unset an entry; the next read layered the default branch's entry for the same test id back in, so a renamed/removed test stayed "previously unsuccessful" on a feature branch forever | `Graph::baselineFor()` layers per *file* once a branch has had a complete run (new `complete` flag on the baseline); a key minted by a narrowed run keeps the per-test-id merge | `StateReclamation` → *a pruned result does not come back from the fallback*, *the fallback still reaches a branch that has never run a test file* |
+| 2 | A cached failure whose test file was deleted was never reclaimed, so `--filtered` degraded to a full replay on every later run | `hasUnlocatedTestsToRerun()` widens only for a path it cannot *address*; `Graph::pruneResultsForMissingFiles()` + `pruneMissingTests()` run on every complete write | `StateReclamation` → *a cached failure whose test file was deleted stops widening later runs*, *a complete run reclaims the entry and the edge of a deleted test file* |
+| 3 | A detached HEAD is read-only for writes, but three paths still *deleted*: structural drift, `--fresh` (`Storage::purge`), and the corrupt-graph discard. The checkout that wiped the baseline could never rebuild it | `Tia::deleteState()` no-ops when detached; `Storage::purge` guarded | `StateReclamation` → the three *a detached HEAD does not purge…* rows |
+| 4 | A status int outside 0–8 became `TestStatus::unknown()`, which `ReplayType` folded into `Failure` — a green test went red, exit 1 | `Graph::getResult()` returns `null` for an unknown status (re-run, don't replay); `shouldRerunStatus()` treats unknown as re-run | `HostileState` → *a cached status this build cannot interpret is re-run, not replayed* |
+| 5 | Notice/deprecation/warning (3/4/6) decode fine but `ReplayType` had no case, so they also folded into `Failure` | Explicit `Pass` cases — those statuses only reach replay when the configured `failOn*` / `displayDetailsOn*` policies say they do not matter | `HostileState` → *a cached status with no replay of its own does not fail the run* |
+| 6 | `Graph::decode()` took `baselines`, `edges` and `files` verbatim; one malformed entry raised a `TypeError` inside a test | `decodeBaselines()` / `decodeResults()` / `decodeEdges()` / `decodeFiles()` validate every field. Numeric-looking keys are cast, not filtered — a branch named `12345` decodes as an `int` | `HostileState` → *a graph whose shape is wrong everywhere is repaired rather than trusted* |
+| 7 | Baseline keys grew forever — one full copy of the suite per branch ever created | `ChangedFiles::branchNames()` (local + remote refs) + `Graph::pruneMissingBranches()`, on complete writes only, and only when the fallback branch is visible in the refs | `BranchShapes` → *deleting many branches reclaims every one of their baselines* and the four rows around it |
+| 8 | A test that triggered a deprecation was recorded as `status=0`, because PHPUnit emits `Passed` for it and TIA had no issue subscribers. A fresh `--fail-on-deprecation` run exited 1; the replayed one exited 0 | Six subscribers (`Notice`/`PhpNotice`/`Deprecation`/`PhpDeprecation`/`Warning`/`PhpWarning`) feed `ResultCollector`; most-important-status-wins; a plain `Passed` does not downgrade a triggered issue; `@`-suppressed issues are ignored | `IssueStatuses` → *a triggered issue is recorded as itself, not as a pass*, *a cached deprecation still fails the run that asked to fail on one* |
+| 9 | A replay wrote back the status it *looked* like from outside, so a cached deprecation replaying as a pass was persisted as `0` — defect 8's fix eroded after one run | `Tia::replayedAsRecorded()` writes back the cached status and message for replayed tests, in the sequential path and in the worker flush | `IssueStatuses` → *replaying a cached issue does not downgrade it to a pass* |
+| 10 | A run torn down mid-file (an `exit()` inside a test) still flushed what it had, and the parent read that as licence to prune the siblings it never reached. Sequential and parallel disagreed | `ResultCollector::hasUnfinishedTest()` demotes such a run to results-only, in `terminate()` (the shutdown path) and in `addOutput()` | `StateReclamation` → *a run torn down mid-file does not prune the tests it never reached* |
+
+**One existing assertion was changed.** `DefaultBranchWriteTier > filtered mode falls back to a full
+replay when a cached failure cannot be located` used `tests/Unit/DeletedTest.php` — a path that
+resolves but does not exist, which is precisely the shape behind defect 2. It now points at
+`/build/agent/…`, so it still pins the widening safety net for the case where widening can help. If
+you disagree with that reading, that is a finding, not a licence to change it back quietly.
+
+### 1.3 Attacked in phase five and found solid — do not spend time here again
+
+- **Parity.** Sequential vs `--processes=1/2/8` across replay-with-edit, `--filtered` with a cached
+  failure, a first run on a feature branch, `--bail`, `--stop-on-failure`, `--compact`: identical
+  tally *and* identical graph delta every time.
+- **Hostile state dir.** Empty / truncated / not-JSON / JSON scalar / JSON list / `null` / `{}` / NUL
+  bytes; `graph.json` as a directory; a read-only state dir; dangling and negative edge ids; a result
+  `file` pointing outside the project; `schema: 2`. All degrade to "run the tests", exit 0.
+- **Status int mapping.** `ResultCollector` (`asInt()`), `Graph::getResult()` and `TestStatus::from()`
+  agree exactly on 0–8. No off-by-one.
+- **`FileState::write`** is tmp + rename, so concurrent runs cannot tear a file. Racing runs are
+  last-writer-wins **by design** — treat as a decision, not a bug, unless you can show data loss
+  worse than that.
+- **Branch names.** Slashes, dots, unicode, digits-only, 180 characters, case-only differences,
+  remote-only branches, worktree branches: all keyed and reclaimed correctly.
+- **`sha`/`tree` layering.** No shape found that under-reports changed files. The fallback `tree` only
+  drops a file whose current content hashes identically to what the fallback ran with, which is sound.
+
+### 1.4 Known and deliberately unfixed
+
+| Item | Why it is still open |
+|---|---|
+| Reclamation is skipped when a complete run executes **zero** tests | Stale edges linger until a run that executes at least one test. Writing the graph from a run that produced nothing costs more than it buys. Revisit if you find a real project stuck there. |
+| SIGINT never reaches the suite (`PcovRestarter` re-exec) | Real, but signal handling outside the TIA read/write path. Needs its own pass. |
+| Orphaned state dirs when the origin URL changes | `Storage::projectKey()` keys on the origin identity so clones share a graph. Changing the remote silently moves TIA to a fresh dir and nothing reclaims the old one. Unbounded growth in `~/.pest/tia`. |
+| `environmental` fingerprint holds only `php_minor` | Nuno declined. The `clearResults()` drift path is therefore latent — it becomes live the moment that bucket grows. **Do not re-flag the `PHP_MAJOR_VERSION` line itself.** |
+| PLAN.md §3 (raw coverage flags leave filtered mode on) | **No longer reproduces** — `coverageReportActive()` consults `COVERAGE_REPORT_FLAGS` now. Struck. |
+
+---
+
+## Part 2 — The invariants to attack
+
+Same list as phase five; 1, 2, 4, 5, 7 and 8 are now well covered, so weight your effort toward 3 and
+6 and toward the *recording* half of the system, which nothing below the plugin has ever probed.
+
+1. **Parity.** `pest <args>` and `pest --parallel --processes=N <args>` must leave the same graph and
+   reach the same tally. Hard rule. `Project::SEQUENTIAL_AND_PARALLEL` encodes it; use it on every new
+   write-path row.
+2. **The tiers hold.** COMPLETE / RESULTS-ONLY / HARD-SUPPRESSED, exactly one each, no leaking.
+3. **Replay is faithful.** ← *weak spot.* A replayed test reports the same status, message, time and
+   assertion count as the recorded run. Phase five fixed statuses; **edges** are unproven.
+4. **Reads never write.**
+5. **A branch never corrupts another branch's baseline.**
+6. **Nothing is unbounded.** ← *weak spot.* Baseline keys are reclaimed now; `files`, `edges`, worker
+   partials, coverage caches and orphaned state dirs are not.
+7. **A hostile state dir cannot break a run.**
+8. **Git shapes are all handled.**
+
+---
+
+## Part 3 — Leads to reproduce first (Pass A)
+
+Ranked by expected value. Everything here is **unexplored**, not merely unfixed — phase five never
+opened these files.
+
+### M1 — the recording path with a real coverage driver · **highest value**
+
+Everything phase five did was driver-independent by design (seed a graph, never record one). Nothing
+verified that a *recorded* graph is correct. This is the biggest blind spot in the audit.
+
+- Do the recorded edges match what the test actually touched? Record with pcov, then hand-check
+  `edges` against the source files each fixture test uses.
+- `PLAN.md` §4: **`pest --tia --coverage` narrows edges** — `Feature/ExampleTest` recorded with 2
+  files instead of 16, dropping self-edges. Same observable shape as the parallel bug G12 that phase
+  four closed, likely a different mechanism (the piggyback collector is scoped by `phpunit.xml
+  <include>`, the pcov-restarted recorder is not). **Confirm whether these are one fix or two.**
+- `Recorder::activateLinkTracking()` (piggyback) vs `activate()` (pcov restart) must produce the same
+  edge set for the same suite. Compare them directly.
+- `keepExisting: $this->piggybackCoverage` in `replaceEdges()` — what happens to a test whose edges
+  genuinely shrank while piggybacking?
+
+Rows for this **must** be `->skipOnPhpVersionsWithoutCoverage()`-style guarded, or seeded, or CI goes
+red on `php84`. That constraint is why phase five skipped it; solve it deliberately rather than by
+accident. Adding a coverage-driver guard helper to the fixture is a legitimate deliverable.
+
+### M2 — `BaselineSync` (621 lines, never opened)
+
+The remote-baseline fetch is the only path where a graph arrives from **another machine**, which is
+exactly where the hostile-state work matters most and where none of it has been exercised.
+
+- A fetched baseline whose `fingerprint` matches but whose `files`/`edges` describe a different tree.
+- A fetched baseline recorded on a branch this checkout does not have.
+- `fetchIfAvailable()` under a broken network, a 404, a truncated download, a non-gzip body.
+- `KEY_FETCH_COOLDOWN` — does it bound retries, and does a corrupt cooldown file break a run?
+- Interaction with defect 7's branch GC: a fetched baseline carries branch keys this clone has never
+  heard of. **They will be pruned on the next complete write.** Is that right, or must fetched keys be
+  exempt? This is a real question, answer it.
+
+### M3 — selection paths nobody has probed
+
+`Graph::affected()` is ~600 lines and phase five only exercised the plain PHP-edge path.
+
+- **Migrations** → `TableExtractor` → `testTables` intersection. What happens with an unparseable
+  migration, a migration that drops a table, a squashed schema dump?
+- **Blade** — `bladeAncestorsFor()` walks `@include`/`@extends`/`<x-*>` transitively. Cycles?
+  Depth? A component referenced only dynamically?
+- **Inertia** — `componentForInertiaPage()`, `jsFileToComponents`, `JsModuleGraph::buildStrict()`.
+  What if `vite` is missing, or the resolver returns garbage?
+- **`usesSiblingHeuristicForUnknownPhp()`** — a hard-coded list of Laravel directories. A changed file
+  in `app/Providers/` widens to every test whose deps share that directory. Measure how much that
+  over-selects on a real tree.
+- **Arch tests** — `testSourceDeclaresArchGroup()` greps the source with three regexes. False
+  positives (the string `arch(` in a comment) select the file on *every* PHP source change.
+
+### M4 — git shapes phase five left alone
+
+- A repo with **no commits yet** (`currentSha()` returns null / git fails).
+- **Submodules** — a changed file inside one; `git status --porcelain` reports the submodule path.
+- A repo whose root is **above** the pest project — `TiaRequiresRepositoryRoot` panics deliberately;
+  confirm it still panics and writes nothing.
+- **Shallow / single-branch CI checkouts.** Defect 7's guard (`fallbackBranch` must be visible in the
+  refs) was reasoned about, not measured. Build one and check nothing is over-pruned.
+- A branch **behind** the recorded sha, so `merge-base --is-ancestor` fails and the graph is declared
+  unreachable. Does it recover, or thrash?
+
+### M5 — a real concurrent race
+
+Phase five established `FileState::write` is atomic and called it last-writer-wins by design. Nobody
+launched two runs. Launch them: a watcher plus a manual run, two `--tia` processes on one project,
+`--parallel` where the parent writes while a straggler worker flushes. Look for **loss worse than
+last-writer-wins** — a partially-merged baseline, a pruned entry from a run that never saw the file,
+worker partials from run A consumed by run B (`KEY_WORKER_*` are not namespaced per run).
+
+That last one is the sharpest: `purgeWorkerPartials()` deletes *all* partials by prefix, so two
+concurrent parallel runs will eat each other's. Probe it.
+
+### M6 — the unbounded remainder
+
+Defect 7 reclaimed baseline keys. These still grow:
+
+- `files` and `edges` — a deleted *source* file's entry is never removed (`pruneMissingTests()` only
+  covers test files). Every rename leaves an orphan id forever.
+- Orphaned state dirs under `~/.pest/tia` (see 1.4).
+- `KEY_COVERAGE_CACHE` / `KEY_COVERAGE_MARKER` — who deletes them, and when?
+- Worker partials when a worker dies before `terminate()`.
+
+Measure the growth on a realistic tree before proposing anything. Then **ask** — a cap or a GC is a
+behaviour choice.
+
+---
+
+## Part 4 — The harness
+
+### 4.1 The scenario suite
+
+`tests/Features/Tia/*` scaffold a throwaway git project into a temp dir, run a **real `pest`
+subprocess** against it, and diff the graph it wrote. Everything lives in `tests/Fixtures/Tia/`:
+
+| Class | What it gives you |
+|---|---|
+| `Project` | `make(branch, overlay:)`, `withoutGit()`, `seed(branch, sentinel:, failing:)`, `seedFor($root, …)`, `pest(...$args)`, `pestWithEnvironment($dir, $env, ...$args)`, `pestIn($dir, ...)`, `write($rel, $contents)`, `path($rel)`, `graph()`, `branchKeys()`, `graphDir()`, `graphExists()`, `snapshot()`, `delta()`, `mutateGraph(fn)`, `addBaseline($branch)`, `worktree($branch)`, `destroy()`, `destroyAll()`, `SEQUENTIAL_AND_PARALLEL` |
+| `GitRepo` (`$project->git()`) | `switchTo($b, new:)`, `rename($from, $to)`, `detach()`, `commit($msg)`, `config($k, $v)`, `addOrigin()`, `removeOrigin()`, `setOriginHead($b)`, `unsetOriginHead()`, `worktree()`, `sha()`, `branchNames()`, `run([...])` for anything else |
+| `GraphDelta` (`$project->delta()`) | `writtenCount()`, `added()`, `removed()`, `branchKeys()`, `baselineUntouched($b)`, `shaMoved()`, `treeMoved()`, `edgesMoved()`, `filesMoved()`, `fingerprintMoved()`, `structureMoved()`, `isResultsOnly()`, `isHardSuppressed()`, `summary()` |
+| `PestResult` (returned by `pest()`) | `replayed()`, `uncached()`, `affected()`, `tally()`, `output`, `exitCode`, `describe()` |
+
+The fixture app is 3 test files / **6 tests** (`Project::TOTAL_TESTS`); `Project::EDGES` and
+`Project::TESTS` describe the graph `seed()` writes. `Project::testId($file, $description)` builds a
+result key. Overlays in `tests/Fixtures/Tia/overlays/<name>/` supply a different `tests/Pest.php` —
+that is how you configure `pest()->tia()->…` for a scenario.
+
+**If the fixture cannot express your case, extend the fixture.** A new `GitRepo` verb, a new overlay,
+or a coverage-driver guard is a legitimate part of the deliverable. Do not water down a scenario to
+fit the current helpers. Phase five added `GitRepo::commit()` usage, numeric-key handling in
+`Project::branchKeys()` and `GraphDelta`, and used `$project->write()` to author test files inline —
+follow that pattern.
+
+### 4.2 The sentinel discriminator — read before writing any assertion
+
+`seed()` writes a graph **and then rewrites every cached result to `time=9.999`, `assertions=42`**
+(only where assertions are non-zero — risky/skipped/incomplete statuses are *derived* from "performed
+no assertions", so falsifying those would rewrite the status on replay), then snapshots. Therefore:
+
+- `$delta->writtenCount()` is the only reliable way to tell **"replayed"** from **"executed and wrote
+  back the same values"**. `0` means nothing was written.
+- `isResultsOnly()` = no structure moved, no `sha`/`tree` movement, nothing added or removed.
+- `isHardSuppressed()` = the graph is byte-identical.
+- A replayed suite reports inflated assertion counts (6 tests × 42). That is the sentinel, not a bug.
+
+The three write tiers, unchanged since phase two:
+
+- **COMPLETE** — may change everything.
+- **RESULTS-ONLY** — may change only `baselines[<branch>].results` for tests that ran; never removes
+  an entry, never adds a result for a test file absent from `edges`, never touches
+  `sha`/`tree`/`edges`/`files`/`fingerprint`.
+- **HARD-SUPPRESSED** — may change nothing.
+
+One addition from phase five: a complete run on a **non-default** branch also sets
+`baselines[<branch>].complete = true`. It is deliberately *not* set on the default branch, so a clean
+green run there stays byte-identical.
+
+### 4.3 Running them
+
+They are in the `integration` group (`tests/Pest.php`), so `composer test:unit` skips them. **A
+directory argument finds nothing** — pass files, space-separated, as separate argv entries:
+
+```bash
+PAO_DISABLE=1 php84 bin/pest tests/Features/Tia/BranchShapes.php tests/Features/Tia/CompleteRunWriteTier.php \
+  tests/Features/Tia/DefaultBranchReplay.php tests/Features/Tia/DefaultBranchResolution.php \
+  tests/Features/Tia/DefaultBranchWriteTier.php tests/Features/Tia/FilteredMode.php \
+  tests/Features/Tia/HostileState.php tests/Features/Tia/IssueStatuses.php \
+  tests/Features/Tia/PartialRunWriteTier.php tests/Features/Tia/StateReclamation.php
+
+PAO_DISABLE=1 php   bin/pest <same list>
+```
+
+**Both interpreters must be green.** `php84` is 8.4.x with **no pcov** — that is what CI has
+(`.github/workflows/tests.yml` sets `coverage: none`). `php` is 8.5.x with pcov — that is the dev
+machine. Any assertion that depends on a coverage driver passes locally and fails in CI. Concretely:
+
+- A **cold recording run writes no graph at all** without pcov/xdebug (it prints `Running in TIA mode,
+  however TIA is skipped as it needs ext-pcov or Xdebug`). **Seed a graph, never record one**, unless
+  the driver *is* the point of the row — see M1, which has to solve this properly.
+- A **PHP source file edit** driverless triggers `Detected PHP source changes but no coverage driver
+  is available` → full suite, `affected=0`. Edit *test* files, not `app/` files.
+- The `terminate()` path differs by driver: with pcov the plugin reaches the complete write through
+  the shutdown handler, without it the run exits earlier. Defect 10 only reproduced on `php`. **Run
+  every probe on both before believing it.**
+
+`PAO_DISABLE=1` is mandatory on every pest invocation and every probe: `laravel/pao` emits JSON under
+agents and corrupts the captured output.
+
+**Baseline: 161 scenario rows green on both interpreters**, at `b49ba062`. Per file:
+
+| File | Rows |
+|---|---|
+| `StateReclamation.php` | 37 |
+| `HostileState.php` | 25 |
+| `CompleteRunWriteTier.php` | 17 |
+| `DefaultBranchResolution.php` | 14 |
+| `BranchShapes.php` | 14 |
+| `DefaultBranchReplay.php` | 13 |
+| `IssueStatuses.php` | 13 |
+| `PartialRunWriteTier.php` | 12 |
+| `DefaultBranchWriteTier.php` | 10 |
+| `FilteredMode.php` | 6 |
+
+Plus 80 unit/arch rows (`tests/Unit/Plugins/Tia/*`, `tests/Arch.php`). If those numbers do not
+reproduce, stop and say so.
+
+### 4.4 Measure before you assert
+
+Never guess an expectation from reading the code. Probe first, in your scratchpad:
+
+```php
+<?php
+require '/Users/nunomaduro/Work/projects/pestphp/pest/vendor/autoload.php';
+use Tests\Fixtures\Tia\Project;
+
+$p = Project::make('master');
+$p->seed('master');
+$p->git()->switchTo('feature-x', new: true);
+$r = $p->pest('--tia');
+printf("tally=[%s] keys=[%s] %s\n", $r->tally(), implode(',', $p->branchKeys()), $p->delta()->summary());
+$p->destroy();
+```
+
+`PAO_DISABLE=1 php probe.php`. One project per scenario; always `destroy()`; `Project::destroyAll()`
+at the end. Run every probe on **both** interpreters before believing it.
+
+---
+
+## Part 5 — Ground rules
+
+- **Do not** run `composer test`. It takes minutes and you do not need it.
+- **`tests/.snapshots/success.txt` and the tally in `tests/Visual/Parallel.php` are stale right now** —
+  phase five added 89 rows and did not regenerate them. **Report that they need regenerating and let
+  Nuno run `composer update:snapshots`.** Do not run it yourself.
+- **Do not commit.** Leave the tree dirty.
+- **Do not touch the playground's `vendor/`.** If a finding truly needs the playground (25 real tests,
+  real timings), say so and ask — syncing it is a manual step Nuno owns.
+- Run `vendor/bin/phpstan analyse <the files you touched> --memory-limit=-1 --no-progress` and
+  `vendor/bin/pint <the files you touched>` before reporting. **Scope both to files you changed** —
+  Nuno edits `src/` live, and a repo-wide fixer will revert his work.
+- The fixture projects **hardlink `src/`**. If you edit `src/` while a scenario run is in flight,
+  those rows go red for no reason. Finish the edit, then run.
+- Keep scratch probes out of the repo.
+- **Never weaken an existing assertion to make something pass.** If an existing row contradicts your
+  fix, that is a finding: report the contradiction and ask. Phase five hit this once (see 1.2) and
+  rewrote the row to pin the *narrower* contract rather than deleting it — that is the bar.
+
+---
+
+## Part 6 — Reporting
+
+**Between passes**, not just at the end. Per finding:
+
+- **Reproduced (yes / no / hypothesis only)**, with the exact command and the measured
+  `tally` + `delta()->summary()` on **both** interpreters.
+- **Severity**, and say why in one line. The scale that matters here: *a test wrongly replayed as
+  passing* (worst) > *cache silently useless, full suite forever* > *graph grows / stale data* >
+  *cosmetic*.
+- **Fixed / deferred / needs-a-decision**, and the row that pins it.
+- For anything needing a decision: **one yes/no question**, no essay.
+
+Close with:
+
+1. The count of `tests/Features/Tia/*` green on **both** `php84` (no pcov) and `php` (pcov), against
+   the 161 baseline.
+2. Every row you added, and what invariant from Part 2 it defends.
+3. Which findings are still open, as yes/no questions.
+4. That the snapshots need regenerating — **do not regenerate them.**
+5. **What you looked at and found solid.** A list of attacks that did not break anything is a real
+   result: it tells the next phase where not to spend its time.
+
+---
+
+## Part 7 — Open questions carried into this phase
+
+Answer these before or during Pass C; they change what the fixes should be.
+
+1. A fetched remote baseline carries branch keys this clone has never heard of, and the branch GC will
+   prune them on the next complete write. **Should fetched keys be exempt?**
+2. Two concurrent parallel runs share the `worker-edges-*` / `worker-results-*` prefixes and
+   `purgeWorkerPartials()` deletes by prefix. **Should partials be namespaced per run, or is "do not
+   run two TIA suites at once" the contract?**
+3. `files` and `edges` never lose a deleted *source* file. **Cap, GC, or accept?**
+4. Orphaned state dirs accumulate under `~/.pest/tia` whenever a project's origin URL changes.
+   **Reclaim them, or accept?**

PLAN_PHASE_THREE.md

@@ -0,0 +1,455 @@
+# TIA default-branch fallback — phase three
+
+## Your task
+
+Fix [pestphp/pest#1823](https://github.com/pestphp/pest/issues/1823) — TIA's cached results never
+hit for repos whose default branch is not literally `main` — then re-run the **whole** conformance
+matrix against the playground app, plus the new section **L** that covers the fix.
+
+Work in this order, and **stop where the plan says stop**:
+
+1. **Part 1** — read the diagnosis. It is already measured; do not re-derive it, but do re-confirm
+   the two reproductions in Part 1.3 take ~2 minutes and prove your environment is sane.
+2. **Part 2** — implement the fix in the `pestphp/pest` repo. **Do not commit. Do not touch the
+   playground's `vendor/`.**
+3. **HARD STOP → Part 3.** Report the diff to Nuno and wait. He validates, commits, and syncs it
+   into the playground himself. You must not proceed until he confirms.
+4. **Part 4** — verify the sync landed, then run section **L** (new) and the full phase-two matrix
+   (**A–K**, all 156 rows) against the playground.
+5. **Part 5** — report in the given format.
+
+Per `CLAUDE.md`: **do not write new `pestphp/pest` unit tests and do not run `composer test`.** Make
+the change, report it, and ask whether repo tests should be added. The section-L rows are *playground
+invocations*, not repo tests — those are the deliverable and are always in scope.
+
+---
+
+## Part 1 — The diagnosis (already measured; commit `bfd5b756`)
+
+### 1.1 Root cause — two independent hardcoded `'main'` literals
+
+**(a) The read fallback.** `src/Plugins/Tia/Graph.php` — seven methods default the fallback to the
+literal `'main'`:
+
+| line | method |
+|---|---|
+| 579 | `recordedAtSha(string $branch, string $fallbackBranch = 'main')` |
+| 614 | `getAssertions(…, string $fallbackBranch = 'main')` |
+| 625 | `getTime(…, string $fallbackBranch = 'main')` |
+| 636 | `getResult(…, string $fallbackBranch = 'main')` |
+| 663 | `testFilesToRerun(string $branch, string $fallbackBranch = 'main')` |
+| 700 | `hasUnlocatedTestsToRerun(string $branch, string $fallbackBranch = 'main')` |
+| 811 | `lastRunTree(string $branch, string $fallbackBranch = 'main')` |
+
+They all funnel into `Graph::baselineFor()` (line 819), which *does* implement a real cross-branch
+fallback:
+
+```php
+if (isset($this->baselines[$branch]))                                         return $this->baselines[$branch];
+if ($branch !== $fallbackBranch && isset($this->baselines[$fallbackBranch]))  return $this->baselines[$fallbackBranch];
+return ['sha' => null, 'tree' => [], 'results' => []];
+```
+
+The mechanism is deliberate. The problem is that **no caller ever passes `$fallbackBranch`** — all
+nine call sites in `src/Plugins/Tia.php` (lines 419, 429, 432, 785, 857, 1026, 1031, 1048, 1056) pass
+only `$this->branch`. So on a `master`-named repo the second branch of `baselineFor()` can never
+fire, and the whole mechanism is dead code.
+
+`grep -rniE 'defaultBranch|symbolic-ref|init\.defaultBranch|origin/HEAD' src/` returns **nothing** —
+no default-branch resolution exists anywhere.
+
+**(b) The detached-HEAD default.** `src/Plugins/Tia.php:206` declares `private string $branch = 'main';`
+and `ChangedFiles::currentBranch()` (`ChangedFiles.php:208`) returns `null` for detached HEAD. So on
+detached HEAD `$this->branch` stays the literal `'main'` and is used for **both reads and writes** —
+minting a baseline key for a branch that does not exist. This is a *write*-side bug and a separate fix
+from (a).
+
+### 1.2 Not a regression
+
+`git log -S"fallbackBranch = 'main'"` bottoms out at `c7e32f5d feat(tia): continues to work on poc`.
+This is original PoC code, untouched by phase one. Phase one's change 1 modified
+`hasUnlocatedTestsToRerun()`'s file-existence check — one of the seven methods — without going near
+the fallback. Do not report it as a phase-one regression.
+
+No test anywhere exercises the mechanism: `tests/Unit/Plugins/Tia/Graph.php` uses `'main'` as the
+*actual* branch name, so those assertions pass whether or not the fallback exists. A branch-name
+mismatch is never tested.
+
+### 1.3 The two reproductions (re-confirm these before you start)
+
+Both on the playground, `master`-named default branch, zero local changes:
+
+```
+default = master                          default = main
+1. record on default   → full run (cold)  → full run (cold)
+2. 1st run on feature-x → 25 UNCACHED     → 25 replayed   ← (a)
+3. 2nd run on feature-x → 25 replayed     → 25 replayed
+4. back on default      → 25 replayed     → 25 replayed
+5. 1st run on feature-y → 25 UNCACHED     → 25 replayed
+```
+
+```
+master-only graph, then `git checkout --detach`, then `pest --tia`:
+  → 25 uncached, and keys become [master,main]   ← (b) spurious key
+```
+
+The cost is **one full run per new branch, forever**, with no output explaining why — the only clue
+is the `N uncached` count; the headline is just `─ Experimental TIA mode enabled.`
+
+### 1.4 Correction to phase two
+
+Phase two reported **H6 and H7 as passing. Both were false passes.** They ran after H5, which had
+renamed `master`→`main` and left a `main` key in the graph, so the hardcoded fallback resolved by
+accident. Re-measured against a clean `master`-only graph, both fail. Section L replaces them as the
+load-bearing rows; H6/H7 must be re-run **from a cold graph** this time (see Part 4.2).
+
+---
+
+## Part 2 — The fix to implement
+
+### 2.1 Recommended design
+
+**Step 1 — add a non-throwing resolver** to `src/Plugins/Tia/ChangedFiles.php`, next to
+`currentBranch()`:
+
+```php
+public function defaultBranch(): ?string
+```
+
+Resolution order, each step failing soft to the next:
+
+1. `git symbolic-ref --short refs/remotes/origin/HEAD` → strip a leading `origin/`
+2. `git config --get init.defaultBranch`
+3. `null`
+
+Unlike `currentBranch()`, this must **never throw** `MissingDependency` — it is advisory. Return
+`null` on any non-zero exit or empty output.
+
+**Step 2 — add a config surface.** `src/Plugins/Tia/Configuration.php` already exposes `always()`,
+`locally()`, `filtered()`, `baselined()`, `watch()`. Add:
+
+```php
+public function defaultBranch(string $branch): self
+```
+
+so `pest()->tia()->defaultBranch('master')` works in `tests/Pest.php`. Explicit config **always
+wins** over autodetection — that is the escape hatch when `origin/HEAD` is unset.
+
+**Step 3 — resolve once, in `Tia.php`.** The read path is hot (`getResult()` is called per test at
+line 419), so resolution must not shell out per call. Resolve alongside `$this->branch` at
+`Tia.php:1910`, under the existing `$branchResolved` guard:
+
+```php
+$this->fallbackBranch = $configuredDefaultBranch
+    ?? $changedFiles->defaultBranch()
+    ?? 'main';
+```
+
+**Step 4 — thread it into `Graph`.** Prefer a `Graph`-level property over editing nine call sites:
+add `Graph::setFallbackBranch(string $branch)`, change the seven signatures to
+`?string $fallbackBranch = null`, and resolve inside each with
+`$fallbackBranch ??= $this->fallbackBranch;`. `baselineFor()` itself needs no change. This keeps the
+public signatures backward-compatible and minimises blast radius.
+
+**Step 5 — fix the detached-HEAD write.** `Tia.php:206`'s `= 'main'` default must become the
+resolved default branch, so detached HEAD stops minting a phantom key.
+
+### 2.2 Invariants the fix must not break
+
+These are all covered by existing matrix rows — the fix is wrong if any of them moves:
+
+- **Read-only.** The fallback must affect *reads* only. Writes go through `ensureBaseline($branch)`
+  and must keep using the real current branch. Otherwise H1–H4/H8 ("no baseline key other than the
+  real branch") break.
+- **H9** — a non-git dir with `--tia` must still raise
+  `MissingDependency: The feature "Tia mode" requires "git".` Adding a soft resolver must not
+  swallow that.
+- **H10** — plain `pest` in a non-git dir must still run and create no baseline dir.
+- **A2/A3** — cold-graph recording unchanged.
+- **I1/E3** — clean+green `--tia --filtered` must still be a true zero-delta run.
+- Filtered mode reads `testFilesToRerun()` and `hasUnlocatedTestsToRerun()`, so the fallback must
+  reach those two as well, not just `getResult()`.
+
+### 2.3 Decisions for Nuno (raise these at the Part 3 stop)
+
+- **D1** — Consult `origin/HEAD` at all? It requires `git remote set-head` and is absent in many CI
+  checkouts and all remote-less repos. Config + `init.defaultBranch` only is simpler but helps fewer
+  people out of the box. *Recommendation: keep it, first in the chain, since it fails soft.*
+- **D2** — Single-key heuristic: if the graph holds exactly one baseline key, use it as the fallback?
+  Fixes the issue with zero git calls, but is implicit and surprising when several keys exist.
+  *Recommendation: no.*
+- **D3** — Should detached HEAD write a baseline at all, or be read-only? Current behaviour mints a
+  key. *Recommendation: read-only.*
+- **D4** — Should `pest()->tia()->defaultBranch()` validate that the branch exists, or accept any
+  string? *Recommendation: accept any string; a nonexistent name degrades to a full run, which is
+  safe.*
+
+---
+
+## Part 3 — HARD STOP
+
+When the code is written:
+
+1. Show Nuno the diff (`git -C /Users/nunomaduro/Work/projects/pestphp/pest diff`) and a one-paragraph
+   summary of each file's change.
+2. Answer/raise the D1–D4 decisions.
+3. State explicitly that you have **not** committed and have **not** synced `vendor/`.
+4. Ask whether repo unit tests should be added (per `CLAUDE.md`), describing the tests you have in
+   mind — do not write them yet.
+5. **Wait.** Nuno commits and applies the change to the playground.
+
+**Never sync the playground's `vendor/` yourself.** `vendor/pestphp/pest` there is a dist copy, not a
+symlink (composer installed `dev-fix/tia-filtered as 5.2.0`), so pest-repo edits do not reach it. Say
+what is stale and wait. This applies to before/after contrasts too.
+
+Once he confirms, verify the sync actually landed before measuring anything:
+
+```bash
+V=/Users/nunomaduro/Work/projects/playground/laravel/vendor/pestphp/pest
+grep -c 'defaultBranch' "$V/src/Plugins/Tia/ChangedFiles.php"   # must be ≥ 1
+for f in src/Plugins/Tia.php src/Plugins/Tia/Graph.php src/Plugins/Tia/ChangedFiles.php \
+         src/Plugins/Tia/Configuration.php; do
+  diff -q "/Users/nunomaduro/Work/projects/pestphp/pest/$f" "$V/$f" >/dev/null \
+    && echo "SAME $f" || echo "STALE $f"
+done
+```
+
+If anything reports `STALE`, stop and tell him. State in your final report which pest commit produced
+the playground numbers.
+
+---
+
+## Part 4 — Measurement
+
+### 4.1 Environment and traps
+
+**Playground:** `/Users/nunomaduro/Work/projects/playground/laravel` (branch `master`).
+
+1. **Every** pest invocation needs `PAO_DISABLE=1` — the app has `laravel/pao`, which emits JSON when
+   it detects an agent.
+2. **Pin the interpreter to `php85`.** The playground requires PHP `>= 8.4.1` *and* pcov. Locally only
+   `php85` (8.5.8) has both — `php84` (8.4.23) has no pcov, and the bare Herd `php` shim has been
+   observed drifting to 8.3.32 mid-session, which kills every run in
+   `vendor/composer/platform_check.php`. Also put a `php` → `php85` symlink first on `PATH`: the
+   `--shard` list-tests probe spawns a subprocess via bare `php`, not `PHP_BINARY`.
+3. **Never run `git checkout .` or `git checkout -- composer.lock` in the playground.** It has four
+   pre-existing user-modified files — `AGENTS.md`, `CLAUDE.md`, `composer.json`, `composer.lock`. Scope
+   resets to `git checkout -- tests app` / `git clean -fd tests app`. For `phpunit.xml` and
+   `composer.lock`, copy aside and copy back, verifying with `shasum`.
+4. **zsh does not word-split unquoted parameters.** A `$PEST` string containing a space becomes one
+   command name. Route every invocation through `eval` (the `pest()` helper below does this).
+5. Comment-only edits to a test file are **not** changes (AST-level hashing). Use semantic edits.
+6. **The sentinel technique must not falsify `assertions` on zero-assertion tests.** A
+   risky/skipped/incomplete status is *derived* from "performed no assertions", so patching those to
+   `42` rewrites the status on replay and destroys the discriminator — it shows up as a phantom
+   `status 5→0` defect. The `sentinel.php` below only patches `assertions` where it is already
+   non-zero. With that, a full replay gives a clean `rewritten=0`.
+7. Restore branch state after every L row. Several rows rename or detach; leaving a stray `main` key
+   in the graph is exactly what produced phase two's false H6/H7 passes.
+
+### 4.2 Reference numbers
+
+The playground already carries the phase-two fixtures at commit `fb2e77e` — **do not rebuild them.**
+A healthy sequential `--tia` graph is:
+
+> **`files=27`, 10 edge keys (one per test file), self-edge on all 10, `n=25` results.**
+
+`sha` will differ once Nuno commits the vendor sync — re-derive it once and use it throughout. The
+`files`/`edges`/`n` numbers hold as long as no test fixture changes. Suite shape: 10 test files, 25
+tests, including six deliberate status fixtures (skipped, todo, incomplete, risky, warning,
+deprecation), a 3-row dataset, a `smoke` group, an env-driven flaky test (green unless
+`FLAKY_FAIL=1`), and the annotation set (`covers`/`note`/`flaky`/`issue`/`pr`/`ticket`/`assignee`).
+
+**Re-run H6 and H7 from a cold graph** (`rm -rf` the graph dir, record on `master` only, *then*
+branch/detach). Their phase-two results are void.
+
+### 4.3 Harness
+
+Write these to your scratchpad. `$SP` is your own scratchpad dir.
+
+<details>
+<summary><code>lib.sh</code></summary>
+
+```bash
+#!/bin/zsh
+export PAO_DISABLE=1
+PG=/Users/nunomaduro/Work/projects/playground/laravel
+SP="<your scratchpad>"
+PHPBIN="php85"
+PEST="$PHPBIN $PG/vendor/bin/pest"
+cd "$PG" || exit 1
+pest() { eval "$PEST $*"; }          # zsh: no word-splitting, must eval
+GRAPHDIR="$(pest --baseline)"
+GRAPH="$GRAPHDIR/graph.json"
+mkdir -p "$SP/bin" && ln -sf "$(command -v php85)" "$SP/bin/php"
+export PATH="$SP/bin:$PATH"          # --shard spawns bare `php`
+reset_tree() { git checkout -- tests app 2>/dev/null; git clean -qfd tests app 2>/dev/null; }
+seed() { rm -rf "$GRAPHDIR"; pest --tia >/dev/null 2>&1; $PHPBIN "$SP/sentinel.php" "$GRAPH" >/dev/null; cp "$GRAPH" "$SP/before.json"; }
+snap() { cp "$GRAPH" "$SP/before.json"; }
+delta() { $PHPBIN "$SP/cmp.php" "$SP/before.json" "$GRAPH"; }
+keys() { $PHPBIN -r '$g=json_decode(file_get_contents($argv[1]),true);echo "[".implode(",",array_keys($g["baselines"]??[]))."]";' "$GRAPH"; }
+tally() { sed -E $'s/\x1b\\[[0-9;]*[a-zA-Z]//g' <"$SP/out.txt" | grep -E 'Tests:' | sed -E 's/^ +//;s/Tests: +//'; }
+```
+</details>
+
+<details>
+<summary><code>sentinel.php</code> — the write discriminator</summary>
+
+```php
+<?php // sentinel.php <graph.json>
+$p = $argv[1];
+$g = json_decode((string) file_get_contents($p), true, 512, JSON_THROW_ON_ERROR);
+$n = 0;
+foreach ($g['baselines'] ?? [] as $br => $b) {
+    foreach (array_keys($b['results'] ?? []) as $id) {
+        $g['baselines'][$br]['results'][$id]['time'] = 9.999;
+        // Only falsify a non-zero assertion count: risky/skipped/incomplete are
+        // DERIVED from "performed no assertions", so patching those to 42 would
+        // rewrite the status on replay and destroy the discriminator.
+        if ((int) ($b['results'][$id]['assertions'] ?? 0) > 0) {
+            $g['baselines'][$br]['results'][$id]['assertions'] = 42;
+        }
+        $n++;
+    }
+}
+file_put_contents($p, json_encode($g, JSON_THROW_ON_ERROR));
+echo "sentinelled $n results\n";
+```
+</details>
+
+<details>
+<summary><code>oneline.php</code> — one compact tier verdict per row</summary>
+
+```php
+<?php // oneline.php <before.json> <after.json>
+function load(string $p): ?array {
+    return is_file($p) ? json_decode((string) file_get_contents($p), true, 512, JSON_THROW_ON_ERROR) : null;
+}
+$a = load($argv[1]); $b = load($argv[2]);
+if ($a === null || $b === null) { echo 'GRAPH '.($b === null ? 'DELETED' : 'CREATED'); exit; }
+function edgeSets(array $g): array {
+    $out = [];
+    foreach ($g['edges'] ?? [] as $t => $ids) { $s = array_map(fn($i) => $g['files'][$i] ?? "?$i", (array) $ids); sort($s); $out[$t] = $s; }
+    ksort($out); return $out;
+}
+$moved = [];
+if (edgeSets($a) !== edgeSets($b)) $moved[] = 'edges';
+if (($a['files'] ?? []) !== ($b['files'] ?? [])) $moved[] = 'files';
+if (($a['fingerprint'] ?? null) !== ($b['fingerprint'] ?? null)) $moved[] = 'fingerprint';
+$brA = array_keys($a['baselines'] ?? []); $brB = array_keys($b['baselines'] ?? []);
+if ($brA !== $brB) $moved[] = 'branchkeys('.implode('|', $brA).'->'.implode('|', $brB).')';
+$add = $rem = $wr = 0; $shaMoved = $treeMoved = false;
+foreach ($brB as $br) {
+    $ra = $a['baselines'][$br]['results'] ?? []; $rb = $b['baselines'][$br]['results'] ?? [];
+    if (($a['baselines'][$br]['sha'] ?? null) !== ($b['baselines'][$br]['sha'] ?? null)) $shaMoved = true;
+    if (($a['baselines'][$br]['tree'] ?? null) !== ($b['baselines'][$br]['tree'] ?? null)) $treeMoved = true;
+    $add += count(array_diff(array_keys($rb), array_keys($ra)));
+    $rem += count(array_diff(array_keys($ra), array_keys($rb)));
+    foreach ($ra as $id => $x) {
+        if (! isset($rb[$id])) continue;
+        foreach (['status','time','assertions','message'] as $f) {
+            if (($x[$f] ?? null) !== ($rb[$id][$f] ?? null)) { $wr++; break; }
+        }
+    }
+}
+$n = 0; foreach ($brB as $br) $n = max($n, count($b['baselines'][$br]['results'] ?? []));
+printf('n=%d w=%-2d +%d -%d %s%s%s', $n, $wr, $add, $rem,
+    $moved === [] ? 'struct:ok' : 'STRUCT:'.implode(',', $moved),
+    $shaMoved ? ' sha:CHANGED' : '', $treeMoved ? ' tree:chg' : '');
+```
+</details>
+
+`cmp.php` (verbose per-entry version of the same) and `summarise.php` / `edgediff.php` are in
+`PLAN_PHASE_TWO.md` §"Graph summariser" — reuse them for drill-downs. Reading the verdict:
+
+- `w=` — entries actually **written**. Under sentinel patching this is the only reliable way to tell
+  "wrote identical values" from "wrote nothing". A full replay must give `w=0`.
+- `struct:ok` + `+0 -0` — no prune, no edges/files/fingerprint movement. Required by RESULTS-ONLY.
+- `STRUCT:branchkeys(...)` — a new baseline key appeared. For section L this is the headline signal.
+
+### 4.4 Section L — new rows for this fix
+
+Tiers, unchanged from phase two: **COMPLETE** may change everything · **RESULTS-ONLY (RO)** may
+change only `baselines[<branch>].results` for tests that ran, and must never remove an entry, add a
+result for a test file absent from `edges`, or alter `sha`/`tree`/`edges`/`files`/`fingerprint` ·
+**HARD-SUPPRESSED** may change nothing.
+
+Every L row starts from a **cold graph recorded on the named default branch only** — verify
+`keys=[<default>]` before branching. Restore branch state afterwards.
+
+| # | Case | Target outcome |
+|---|---|---|
+| L1 | default `master`, record, `git switch -c feature-x`, `pest --tia`, zero changes | **all 25 replayed** (`w=0`), not `25 uncached`. The headline fix. |
+| L2 | as L1 but default `main` | still all replayed — regression guard, this already worked |
+| L3 | default `trunk`, then `develop` | replayed for both; the fix must not special-case two names |
+| L4 | L1, then a *second* new branch `feature-y` | replayed too — the toll must not return per branch |
+| L5 | L1 then edit `app/Services/Calculator.php` on `feature-x` | narrows to the 2 affected files (`CalculatorTest` + `AnnotationsTest`, which `covers` it); the other 17 replay |
+| L6 | L1 with `--tia --filtered` | filtered mode reads the fallback too (`testFilesToRerun`, `hasUnlocatedTestsToRerun`) → `No affected tests found`, zero delta |
+| L7 | L1 with `--tia --parallel` | fallback works in workers as well as the parent |
+| L8 | L1, then `pest --tia` twice on `feature-x` | idempotent; second run also `w=0` |
+| L9 | detached HEAD on a `master`-only graph | replays, and **no `main` key minted** — `keys` stays `[master]`. Bug (b). |
+| L10 | `pest()->tia()->defaultBranch('master')` in `tests/Pest.php`, repo default renamed away | config wins over autodetect |
+| L11 | config set to a nonexistent branch (`defaultBranch('nope')`) | degrades to a full run; no crash, no phantom key |
+| L12 | no remote at all (`git remote remove origin` if present) | still resolves (via `init.defaultBranch`) or degrades safely — must not throw |
+| L13 | branch name with a slash (`feature/x/y`) | replayed; no key-splitting bugs |
+| L14 | L1, then confirm writes | `feature-x` gets its **own** key; the `master` key is **not** written to (fallback is read-only) |
+| L15 | git worktree on a new branch (the issue's scenario) | replays from the default-branch baseline |
+| L16 | non-git dir, `pest --tia` | still `MissingDependency: The feature "Tia mode" requires "git".` — the soft resolver must not swallow it |
+| L17 | non-git dir, plain `pest` | runs normally; no baseline dir created |
+| L18 | count `git` subprocesses during one `--tia` run | default-branch resolution is cached, not one call per test. Probe by shimming `git` on `PATH` to a logging wrapper. |
+
+L10–L11 need a `tests/Pest.php` edit — that file is tracked and **outside** the `tests app` reset
+scope in practice (it lives in `tests/`, so `git checkout -- tests` does restore it; verify with
+`git status` after).
+
+For L16/L17, build a throwaway non-git project — and note the trap that burned phase two: a
+**symlinked** `vendor` makes Pest resolve the project root back to the playground (identical baseline
+hash), silently invalidating the test. Use a hardlinked copy:
+
+```bash
+NG="$SP/nogit"; rm -rf "$NG"; mkdir -p "$NG"
+cp -R composer.json composer.lock phpunit.xml artisan tests app bootstrap config routes resources storage "$NG/"
+[ -f .env ] && cp .env "$NG/"
+cp -Rl vendor "$NG/vendor" || cp -R vendor "$NG/vendor"
+```
+
+Confirm the baseline path differs (`nogit-<hash>`, not `laravel-4a455a95622ac0ec`), and delete both
+the temp project and its `~/.pest/tia/nogit-*` dir afterwards.
+
+### 4.5 Re-run the phase-two matrix (A–K, 156 rows)
+
+Re-run every row of `PLAN_PHASE_TWO.md` Part 2 against the fixed build. No row's status is trusted
+until re-measured — the fix touches `Graph`'s read path, which nearly every row exercises. Sections
+**A, B, H, I** are the load-bearing ones here (H is branch-key resolution; I is filtered mode; both
+consume the changed methods directly). **H6 and H7 must be re-derived from a cold graph** (Part 1.4).
+
+Most rows batch cheaply — phase two ran C1–C20 in one call at roughly one line of output each. Use
+`oneline.php` for the sweep and `cmp.php` only to drill into anomalies.
+
+### 4.6 Known pre-existing failures — do not report as regressions
+
+| item | status |
+|---|---|
+| ~~**G4 / G4b** — parallel replay clobbers cached `time` on all non-executed tests.~~ | **Struck in phase four — does not reproduce.** `flushWorkerReplay()` applies `resultTime()` worker-side before writing the partial, so the parent's verbatim read of `$result['time']` is reading values that were already corrected. Pinned by `a parallel replay keeps the recorded time of tests that did not run` (`tests/Features/Tia/CompleteRunWriteTier.php`), which sentinels every cached `time` and asserts a parallel replay writes nothing. |
+| **C19** — `--tia --uses=…` cannot be fixtured. TIA hard-errors on PHPUnit classes (`EnsureTiaIsRunningPestTestsOnly`), and Pest has no chainable `->uses()`. | **Expected behaviour per Nuno.** Verify the tier (`w=0`, RO, notice) and move on. Not a defect. |
+| **J11** — `--repeat` is not a Pest option (`Unknown option "--repeat"`). | **Don't care per Nuno.** Mark SKIP. |
+| **J10** — `--random-order-seed` alone exits 1 with a WARN. Identical without `--tia`. | Pre-existing Pest behaviour, unrelated. Tier still holds. |
+
+---
+
+## Part 5 — Reporting
+
+Per row: **tier respected (yes/no)**, the **graph delta** under sentinel patching, and for any failure
+the **pre-fix contrast** so a regression is told apart from a pre-existing defect. For a pre-fix
+contrast you need `db70017c` (or `bfd5b756` for "before phase three") files swapped into the
+playground's `vendor/` — that is a sync, so **ask Nuno first** and always restore afterwards.
+
+State which pest commit produced the numbers. Close with:
+
+1. Whether L1–L18 all pass (the fix works).
+2. Whether A–K regressed anywhere relative to phase two's 154/156.
+3. The D1–D4 decisions as implemented.
+4. Anything still open — including G4, which will still be failing.
+
+Leave the playground on `master` with only the four user-modified files dirty, no stray branches, and
+no leftover `~/.pest/tia/*` dirs beyond `laravel-4a455a95622ac0ec`.

PLAN_PHASE_TWO.md

@@ -0,0 +1,466 @@
+# TIA write-tier conformance — phase two
+
+## Your task
+
+**Re-run all 156 rows of the matrix in Part 2 from scratch, against the playground app** at
+`/Users/nunomaduro/Work/projects/playground/laravel`. Every row, including the ones already marked
+VERIFIED or PASS — the point of phase two is that no row's status is trusted until it has been
+re-measured against the current code. The `Phase 1` column is prior evidence and a hint at what to
+watch, never a reason to skip a row.
+
+These are **not** the `pestphp/pest` repo's own tests (`composer test`) — do not run those. Each row is
+a `pest` invocation against the playground's suite, followed by a diff of the TIA graph it wrote.
+
+Report, per row: tier respected (yes/no), the graph delta under sentinel patching, and — for any
+failure — the pre-fix contrast so a regression is told apart from a pre-existing defect. Do **not**
+stop at reading this file or summarising it; the deliverable is executed results.
+
+Work in this order: **Part 1 (environment traps) → Part 1b (build the fixtures — the playground has
+none of them) → Part 2 (the matrix) → Part 3 (priorities)**. The matrix is too large for one context;
+take it one lettered section at a time and report as you finish each. Sections A, B, G, I and K are
+the load-bearing ones — do those first if you run short.
+
+Phase one implemented `PLAN.md` Part 1 items 1–4 plus three §5 items. This file turns the matrix into
+a conformance check rather than a bug list.
+
+Code under test: `pestphp/pest` at `/Users/nunomaduro/Work/projects/pestphp/pest`, branch
+`fix/tia-filtered`, commit **`bfd5b756`** or later. Verify with
+`grep -c 'recordsEdgesInWorkers\|recordsEdges' src/Plugins/Tia.php` → at least 3 hits. Pre-fix
+baseline for every contrast is **`db70017c`**.
+
+---
+
+## Part 0 — What phase one changed
+
+| # | Change | Files |
+|---|---|---|
+| 1 | `hasUnlocatedTestsToRerun()` stats the file, so a deleted test file is "unlocated" | `src/Plugins/Tia/Graph.php` |
+| 2 | `enterReplayMode()` uses `activateLinkTracking()` under piggyback coverage | `src/Plugins/Tia.php` |
+| 3 | `enterReplayMode()` stamps `TIA_PIGGYBACK_COVERAGE` for workers | `src/Plugins/Tia.php` |
+| 4 | `replaceEdges(…, keepExisting:)` — piggyback edges seed empty sets, never overwrite populated ones | `Graph.php`, `Tia.php` |
+| 5 | `renderFreshGraph()` stops claiming "fresh graph" when the graph is kept; reason reworded to `recording a coverage baseline` | `Tia.php` |
+| 6 | `COVERAGE_REPORT_FLAGS` + `coverageReportActive()` union over `originalArguments`; new `pestCoverageActive()` keeps the coverage-cache marker/hijack on Pest's own `--coverage` | `Tia.php` |
+| 7 | `Tia::recordsEdgesInWorkers()` + `WrapperRunner::handleTia()` inject `-d pcov.directory=<root>` into worker argv | `Tia.php`, `src/Plugins/Parallel/Paratest/WrapperRunner.php` |
+| 8 | Sequential record runs announce structural drift via `renderFreshGraph()` | `Tia.php` |
+| 9 | `Graph::getTime()` + `cachedTimeByTestId` + `resultTime()` preserve replayed durations; edge-less write guard is now `$recordsEdges = $complete && ($markKnownTestFiles \|\| $this->recordingActive)` | `Graph.php`, `Tia.php` |
+
+Deliberately **not** done: `PLAN.md` §5 SIGINT propagation, §5 warning/deprecation `status=0`
+mapping, and all of §6 (playground annotation fixtures). The vacuous C rows below stay vacuous.
+
+### Target-outcome changes this forces
+
+Two rows in the original matrix asserted the **old**, buggy behaviour. Their targets are updated
+below — do not report them as regressions:
+
+- **B10** was "`time` differs; statuses stable". Change 9 means replayed entries now **keep** their
+  recorded `time`. New target: `time` differs only for tests that actually executed.
+- **B12** gains an edge-preservation assertion it never had (see K1).
+
+### One known-failing repo test
+
+`tests/Unit/Plugins/Tia/Graph.php:69-76` asserts `hasUnlocatedTestsToRerun('main')` is `false` for
+`tests/Feature/FooTest.php` under `new Graph(sys_get_temp_dir())` — a path that does not exist. That
+assertion encodes the I9 bug and **will fail** under change 1. It needs re-pointing at a root/file
+that exists (e.g. `dirname(__DIR__, 4)` + `'tests/Unit/Plugins/Tia/Graph.php'`). Left untouched by
+request; it is a repo-test matter, not a playground one.
+
+---
+
+## Part 1 — Environment, and the traps in it
+
+**Playground:** `/Users/nunomaduro/Work/projects/playground/laravel`
+
+```bash
+cd /Users/nunomaduro/Work/projects/playground/laravel
+GRAPH="$(PAO_DISABLE=1 ./vendor/bin/pest --baseline)/graph.json"   # ~/.pest/tia/laravel-4a455a95622ac0ec
+```
+
+1. **Every** pest invocation needs `PAO_DISABLE=1` — the app has `laravel/pao`, which emits JSON
+   when it detects an agent.
+2. **Never run `git checkout .` or `git checkout -- composer.lock` in the playground.** It has four
+   pre-existing user-modified files — `AGENTS.md`, `CLAUDE.md`, `composer.json`, `composer.lock` —
+   that a blanket reset would destroy. `PLAN.md`'s "reset ritual" is unsafe as written. Scope resets
+   to what you touched: `git checkout -- tests app` / `git clean -fd tests app`, and for
+   `composer.lock` (needed for the drift rows) **copy it aside and copy it back**, verifying with
+   `shasum`.
+3. **`vendor/pestphp/pest` is a dist copy, not a symlink.** Composer installed
+   `dev-fix/tia-filtered as 5.2.0`, so edits in the pest repo do **not** reach the playground.
+
+   **Tell Nuno whenever a sync is needed to move forward — do not sync silently.** Say what is stale
+   and what the sync would be, then wait. This includes temporarily swapping in `db70017c` files for a
+   before/after contrast. When you report any playground result, state which commit produced it.
+   The sync itself, once he agrees:
+   ```bash
+   PEST=/Users/nunomaduro/Work/projects/pestphp/pest
+   V=/Users/nunomaduro/Work/projects/playground/laravel/vendor/pestphp/pest
+   for f in src/Plugins/Tia.php src/Plugins/Tia/Graph.php \
+            src/Plugins/Parallel/Paratest/WrapperRunner.php; do cp "$PEST/$f" "$V/$f"; done
+   ```
+   Verify with `grep -c recordsEdgesInWorkers "$V/src/Plugins/Tia.php"` → `1`. **Always restore the
+   current version before continuing** after a pre-fix contrast.
+4. **Coverage driver:** pcov only, no xdebug. `ini_get('pcov.directory')` is `''` by default — that
+   emptiness is the entire mechanism behind G12.
+5. **Suite shape as found:** 7 tests in 5 files — `tests/Unit/{CalculatorTest,ExampleTest,GreeterTest,
+   TrioTest}.php`, `tests/Feature/ExampleTest.php`. A healthy sequential graph is **`files=22`,
+   5 edge keys, self-edge on every test** (`PLAN.md`'s `files=25` is stale). Pre-fix parallel gives
+   `files=4` with zero self-edges. **These numbers shift the moment you add the Part 1b fixtures** —
+   re-derive them once, after the fixtures land, and use the new numbers throughout. The invariants
+   that do *not* shift: sequential and parallel must agree, and every test must have a self-edge.
+6. **Sentinel patching is the only reliable discriminator** between "wrote identical values" and
+   "wrote nothing": rewrite every cached result to `time=9.999 assertions=42`, snapshot, run the
+   case, diff. A canary test absent from `edges` is unreliable under `--filter` because it never
+   matches the filter and so never runs.
+7. Seeding a cached failure needs `--fresh` (or an env-driven flaky fixture): `--tia` on a clean
+   green tree replays rather than executes, so it can never cache a failure. Working recipe — break
+   an assertion, `pest --tia --fresh`, then restore the source.
+8. Comment-only edits to a test file are **not** changes (AST-level hashing). Use semantic edits.
+9. The shell is zsh — build commands with arrays or `eval`; unquoted `$args` does not word-split.
+
+### Graph summariser
+
+Write this to a scratch path and use it for every diff.
+
+```php
+<?php // summarise.php <graph.json> [label]
+$g = json_decode((string) file_get_contents($argv[1]), true, 512, JSON_THROW_ON_ERROR);
+$files = $g['files'] ?? []; $edges = $g['edges'] ?? [];
+echo ($argv[2] ?? $argv[1])."\n  files=".count($files).'  edges keys='.count($edges)."\n";
+$dirs = []; foreach ($files as $f) { $dirs[explode('/', (string) $f)[0]] = true; }
+ksort($dirs); echo '  file dirs: '.implode(', ', array_keys($dirs))."\n";
+ksort($edges);
+foreach ($edges as $test => $ids) {
+    $self = 'no';
+    foreach ((array) $ids as $id) { if (($files[$id] ?? null) === $test) { $self = 'YES'; break; } }
+    echo sprintf("  %-42s n=%-3d self=%s\n", $test, count((array) $ids), $self);
+}
+foreach ($g['baselines'] ?? [] as $branch => $b) {
+    $r = $b['results'] ?? [];
+    echo "  baseline[$branch]: n=".count($r).' sha='.substr((string) ($b['sha'] ?? '-'), 0, 7)."\n";
+    foreach ($r as $id => $x) {
+        echo sprintf("    %-58s status=%d time=%s asserts=%d file=%s\n", substr((string) $id, -58),
+            $x['status'], $x['time'], $x['assertions'], $x['file'] ?? '-');
+    }
+}
+```
+
+Normalised edge-set equality (for G12 / I5 / K1):
+
+```php
+<?php // edgediff.php <a.json> <b.json>
+function edges(string $p): array {
+    $g = json_decode((string) file_get_contents($p), true, 512, JSON_THROW_ON_ERROR); $out = [];
+    foreach ($g['edges'] as $t => $ids) { $s = array_map(fn ($i) => $g['files'][$i], $ids); sort($s); $out[$t] = $s; }
+    ksort($out); return $out;
+}
+$a = edges($argv[1]); $b = edges($argv[2]);
+echo $a === $b ? "IDENTICAL edge sets\n" : "DIFFER\n";
+foreach ($a as $t => $s) {
+    $m = array_diff($s, $b[$t] ?? []); $e = array_diff($b[$t] ?? [], $s);
+    if ($m || $e) printf("  %s: -%d +%d\n", $t, count($m), count($e));
+}
+```
+
+### Per-case loop
+
+```bash
+git checkout -- tests app 2>/dev/null; git clean -qfd tests app
+rm -rf "$(PAO_DISABLE=1 ./vendor/bin/pest --baseline)"
+PAO_DISABLE=1 ./vendor/bin/pest --tia >/dev/null 2>&1     # seed a healthy graph
+# sentinel-patch every result to time=9.999 assertions=42, snapshot, run the case, diff
+```
+
+---
+
+## Part 1b — Fixtures you must build first
+
+**The playground has none of the fixtures the matrix depends on.** Verified inventory: the only test
+files are `tests/Unit/{CalculatorTest,ExampleTest,GreeterTest,TrioTest}.php` and
+`tests/Feature/ExampleTest.php` — 7 plain tests, zero occurrences of `->group()`, `->only()`,
+`->skip()`, `->todo()`, `->note()`, `->flaky()`, `->covers()`, `->uses()`, `->issue()`, `->pr()`,
+`->ticket()`, `->assignee()`, datasets, or any `FLAKY_OK`-style env hook. `phpunit.xml` defines only
+the `Unit` and `Feature` testsuites.
+
+So roughly 30 rows below cannot run as written until you create the fixtures. Build them **all up
+front, in one commit**, then re-derive the baseline graph shape once and use those numbers for the
+whole sweep — every fixture you add changes `files`, the `edges` key count and `n`, so adding them
+piecemeal invalidates earlier rows.
+
+| Fixture to create | Rows that need it |
+|---|---|
+| a test with `->group('smoke')` | C7, C8, C9, C10 |
+| an env-driven flaky test (passes iff `FLAKY_OK=1`) | E1, E2, E3, E4 |
+| a `->skip()`ed test | E9, D8 |
+| a `->todo()` test | E10, C23, C39 |
+| a risky test (no assertions; pair with `--disallow-test-output`) | E11, D7 |
+| a test that triggers a PHPUnit warning | D6 |
+| a test calling `markTestIncomplete()` | D9 |
+| a test that triggers a deprecation | D10 |
+| a dataset test with ≥3 rows | E13, E14 |
+| `->only()` — added and removed per case, not left in | C31, C32, G7 |
+| `->covers(App\Services\Calculator::class)` | C18 |
+| `->uses(...)` / `UsesClass` annotation | C19 |
+| `->note(...)` | C24 |
+| `->flaky()` **annotation** (distinct from the env-driven flaky test above) | C25 |
+| `->issue(123)`, `->pr(1)`, `->ticket('X')`, `->assignee('X')` | C26, C27, C28, C37, C38 |
+
+This is `PLAN.md` §6's "test-harness gaps to close before re-running", now itemised: without these,
+the listed rows' graph-invariant assertions match zero tests and **prove nothing** — they pass
+vacuously. Any row still marked "(vacuous)" in Part 2 is vacuous *only because* its fixture is
+missing; once you add the fixture, treat the row as unverified and make it load-bearing.
+
+Rows needing an *action* rather than a fixture — breaking `trio one` for the D rows, an uncommitted
+test edit for `--dirty`, branch renames and a non-git dir for H5–H10, `--mutate` against
+`app/Services` for the F rows — are fine as written; `pestphp/pest-plugin-mutate` is installed.
+
+---
+
+## Part 2 — Full case matrix
+
+Tiers: **COMPLETE** may change everything · **RESULTS-ONLY** (RO) may change only
+`baselines[<branch>].results` for tests that ran, and must never remove an entry, add a result for a
+test file absent from `edges`, or alter `sha`/`tree`/`edges`/`files`/`fingerprint` ·
+**HARD-SUPPRESSED** may change nothing.
+
+Phase-1 column: **VERIFIED** = re-run against the fixed code in the phase-one session, pre-fix
+contrast captured · **PASS (sweep)** = passed in the original `db70017` sweep and *not* re-checked
+since the changes — these are the bulk of phase two's work · **SKIP** = not runnable as written.
+
+### A — Setup & sanity
+
+| # | Case | Target outcome | Phase 1 |
+|---|---|---|---|
+| A1 | `composer show pestphp/pest` | version `dev-fix/tia-filtered` | PASS (sweep) |
+| A2 | `pest --baseline` | prints an existing dir; exit 0 | VERIFIED |
+| A3 | delete graph, `pest --tia` | graph.json created; one `edges` key per test file; one result per test | VERIFIED |
+| A4 | `git status` after reset ritual | clean *except the four user-modified files* (see trap 2) | VERIFIED |
+| A5 | `extension_loaded("pcov")` | `true` | VERIFIED |
+| A6 | delete graph, plain `pest` | no graph created | PASS (sweep) |
+| A7 | delete graph, `pest --filter=adds` | no graph created | PASS (sweep) |
+| A8 | two consecutive `pest --tia` | second replays everything; `sha` unchanged | VERIFIED |
+
+### B — COMPLETE runs still write
+
+| # | Case | Target outcome | Phase 1 |
+|---|---|---|---|
+| B1 | `pest --tia` (clean) | replays; graph written; `sha` = `git rev-parse HEAD` | VERIFIED |
+| B2 | `pest --no-tia` | results refreshed; prune applied; `sha`/`tree`/`edges` unchanged | PASS (sweep) — recheck under change 9 |
+| B3 | `pest` (plain) | same as B2 | PASS (sweep) — recheck under change 9 |
+| B4 | `pest --tia --fresh` | graph purged and rebuilt; `edges` rebuilt; `files` repopulated | VERIFIED |
+| B5 | `pest --bail`, all green | COMPLETE — graph written, prune applied | PASS (sweep) |
+| B6 | edit `Calculator.php`, `pest --tia` | `CalculatorTest` re-runs, others replay; `tree` updated | PASS (sweep) |
+| B7 | delete `trio three`, `pest --tia` | its result pruned; `trio one`/`two` remain | PASS (sweep) |
+| B8 | delete `GreeterTest.php`, `pest --tia` | result and edges survive (missing-file prune is `--fresh`-only) | PASS (sweep) |
+| B9 | B8 then `pest --tia --fresh` | entry gone; `files` drops `Greeter.php` too | PASS (sweep) |
+| B10 | `pest --tia` twice | **UPDATED TARGET:** `time` differs only for tests that executed; replayed entries keep their recorded `time`; statuses stable | VERIFIED |
+| B11 | add a test file, `pest --tia` | new `edges` key **and** new result appear in the **same** run | VERIFIED (regression guard for change 9) |
+| B12 | `pest --tia --coverage` | completes; graph written; coverage report prints | VERIFIED |
+
+### C — Selection narrowing → RESULTS-ONLY
+
+All rows: RO invariants hold. "Notice" = `TIA does not apply to partial runs — running the selected tests directly.`
+
+| # | Case | Target outcome | Phase 1 |
+|---|---|---|---|
+| C1 | `pest --filter="adds numbers"` | RO; no notice | PASS (sweep) |
+| C2 | `pest --tia --filter="adds numbers"` | RO; notice | PASS (sweep) |
+| C3 | `pest --filter="trio one"` | RO; `trio two`/`three` byte-identical | PASS (sweep) |
+| C4 | `pest --filter="trio"` | RO; all three update; nothing else does | PASS (sweep) |
+| C5 | `pest --exclude-filter="Feature"` | RO; no notice; no prune | PASS (sweep) |
+| C6 | `pest --tia --exclude-filter="Feature"` | RO; notice | PASS (sweep) |
+| C7 | `pest --group=smoke` | RO; no notice | PASS (sweep) |
+| C8 | `pest --tia --group=smoke` | RO; notice | PASS (sweep) |
+| C9 | `pest --exclude-group=smoke` | RO; no notice; no prune | PASS (sweep) |
+| C10 | `pest --tia --exclude-group=smoke` | RO; notice | PASS (sweep) |
+| C11 | `pest tests/Unit` | RO; no notice; Feature entry not pruned | PASS (sweep) |
+| C12 | `pest --tia tests/Unit` | RO; notice | PASS (sweep) |
+| C13 | `pest tests/Unit/TrioTest.php` | RO; no notice | PASS (sweep) |
+| C14 | `pest --tia tests/Unit/TrioTest.php` | RO; notice | PASS (sweep) |
+| C15 | `pest --testsuite=Unit` | RO; no notice | PASS (sweep) |
+| C16 | `pest --tia --testsuite=Unit` | RO; notice | PASS (sweep) |
+| C17 | `pest --tia --exclude-testsuite=Feature` | RO; notice | PASS (sweep) |
+| C18 | `pest --tia --covers='App\Services\Calculator'` | RO; notice | PASS (sweep) |
+| C19 | `pest --tia --uses='App\Services\Calculator'` | RO; notice | PASS (vacuous — needs fixture) |
+| C20 | `pest --tia --test-suffix=Test.php` | RO even though all tests run; `edges`/`files`/`n` unchanged | PASS (sweep) |
+| C21 | `pest --dirty` with an uncommitted test edit | RO; no notice | PASS (sweep) |
+| C22 | `pest --tia --dirty` | RO; notice | PASS (sweep) |
+| C23 | `pest --tia --todos` | RO; notice | PASS (vacuous) |
+| C24 | `pest --tia --notes` | RO; notice | PASS (vacuous) |
+| C25 | `pest --tia --flaky` | RO; notice | PASS (vacuous) |
+| C26 | `pest --tia --issue=123` | RO; notice | PASS (vacuous) |
+| C27 | `pest --tia --pr=1` | RO; notice | PASS (vacuous) |
+| C28 | `pest --tia --pull-request=1` | RO; notice | PASS (vacuous) |
+| C29 | `pest --tia --shard=1/2` | RO; notice; no prune | PASS (sweep) |
+| C30 | `pest --tia --shard=2/2` | RO; notice; C29+C30 covers the suite; neither prunes | PASS (sweep) |
+| C31 | `->only()` on `trio one`, `pest --tia` | RO; no notice; siblings untouched | PASS (sweep) |
+| C32 | `->only()` on `trio one`, plain `pest` | RO; no notice | PASS (sweep) |
+| C33 | `pest --tia --filtered --filter=adds` | RO; notice; filtered yields to narrowing | PASS (sweep) |
+| C34 | `PEST_TIA=1 pest --filter=adds` | RO; notice | PASS (sweep) |
+| C35 | `PEST_TIA_FILTERED=1 pest --filter=adds` | RO; notice (regression guard) | PASS (sweep) |
+| C36 | `pest --filtered --filter=adds` | RO; notice | PASS (sweep) |
+| C37 | `pest --tia --ticket=X` | RO; notice. `--ticket` **is** a real option (`src/Plugins/Snapshot.php:83`) — it narrows legitimately | PASS (vacuous) |
+| C38 | `pest --tia --assignee=X` | RO; notice (`src/Plugins/Snapshot.php:81`) | PASS (vacuous) |
+| C39 | `pest --tia --todo` | RO; notice; matches nothing | PASS (vacuous) |
+
+### D — Truncation → RESULTS-ONLY
+
+D1–D5, D11–D13, D16 precondition: `trio one` broken. D6–D10 run against a green suite so the `--stop-on-*` trigger is the only narrowing.
+
+| # | Case | Target outcome | Phase 1 |
+|---|---|---|---|
+| D1 | `pest --bail` | RO; `trio one` = `status=7`; siblings survive unchanged | PASS (sweep) |
+| D2 | `pest --retry` | RO; siblings survive | PASS (sweep) |
+| D3 | `pest --stop-on-failure` | RO | PASS (sweep) |
+| D4 | `pest --stop-on-defect` | RO | PASS (sweep) |
+| D5 | `pest --stop-on-error` (no error occurs) | COMPLETE — nothing stopped it | PASS (sweep) |
+| D6 | `pest --stop-on-warning` | RO when it fires. Warning stored as `status=0`, not `6` | PASS (sweep) |
+| D7 | `pest --stop-on-risky --disallow-test-output` | RO; `status=5` | PASS (sweep) |
+| D8 | `pest --stop-on-skipped` | RO; `status=1` | PASS (sweep) |
+| D9 | `pest --stop-on-incomplete` | RO; `status=2` | PASS (sweep) |
+| D10 | `pest --stop-on-deprecation` | RO. Deprecation stored as `status=0`, not `4` | PASS (sweep) |
+| D11 | `pest --tia --bail` | RO | PASS (sweep) |
+| D12 | `pest --bail --filter=trio` | RO (narrowed *and* truncated) | PASS (sweep) |
+| D13 | `stopOnFailure="true"` in `phpunit.xml`, plain `pest` | RO — caught via `stoppedEarly()`, not flag matching | PASS (sweep) |
+| D14 | D13 config, green suite | COMPLETE | PASS (sweep) |
+| D15 | `pest --bail`, last test in run order fails | RO — over-conservative but safe; nothing was skipped | PASS (sweep) |
+| D16 | `pest --tia --filtered --bail`, broken affected test | RO | PASS (sweep) |
+
+### E — Result merge semantics
+
+| # | Case | Target outcome | Phase 1 |
+|---|---|---|---|
+| E1 | cached `flaky`=7, `FLAKY_OK=1 pest --filter=flaky` | flips to `status=0`; all other results byte-identical | PASS (sweep) |
+| E2 | cached `flaky`=0, `pest --filter=flaky` (env unset) | flips to `status=7` | PASS (sweep) |
+| E3 | after E1, `pest --tia --filtered` clean | `No affected tests found`; zero graph delta | PASS (sweep) |
+| E4 | after E2, `pest --tia --filtered` | re-runs, `from 1 previously unsuccessful test` | PASS (sweep) |
+| E5 | any partial run | `assertions` and `time` update for the test that ran (it executed, so change 9 does not apply) | PASS (sweep) |
+| E6 | any partial run | `message` of untouched tests unchanged | PASS (sweep) |
+| E7 | two sequential partial runs on different tests | each updates only its own entry; both persist | PASS (sweep) |
+| E8 | `pest --filter="trio one"` | siblings keep exact `status`/`time`/`assertions`/`message` | PASS (sweep) |
+| E9 | partial run of a `->skip()`ed test | `status=1` | PASS (sweep) |
+| E10 | partial run of a `->todo()` test | `status=1`, `assertions=0`, `message="__TODO__"` | PASS (sweep) |
+| E11 | partial run of a risky test | `status=5` | PASS (sweep) |
+| E12 | any partial run | `fingerprint` byte-identical | PASS (sweep) |
+| E13 | dataset test, `--filter` matching one row | that row updates; other rows survive (the old prune bug) | PASS (sweep) |
+| E14 | dataset test, full `--tia` after deleting a row | the deleted row is pruned | PASS (sweep) |
+
+### F — Guard rails
+
+| # | Case | Target outcome | Phase 1 |
+|---|---|---|---|
+| F1 | test absent from `edges`, `pest --filter="brand new"` | no result recorded | VERIFIED |
+| F2 | complete `pest --tia` first, then the same filter | result is recorded | VERIFIED |
+| F3 | `pest --mutate --path=app/Services --covered-only` | statuses/`edges`/`sha`/`tree`/`files` identical; only `time` may change | PASS (sweep) |
+| F4 | `pest --mutate --parallel --path=… --covered-only` | same (observed: zero delta) | PASS (sweep) — recheck under change 7 |
+| F5 | weakened test so a mutant survives, `pest --mutate` | no status change in the baseline | PASS (sweep) |
+| F6 | `pest --mutate` with the graph deleted | no graph created | PASS (sweep) |
+| F7 | mutation subprocess env | carries `PEST_MUTATION_TESTING`; `--mutate` stripped from argv | PASS (sweep) |
+| F8 | grep baseline after `--mutate` | no mutation-flavoured messages | PASS (sweep) |
+
+### G — Parallel
+
+| # | Case | Target outcome | Phase 1 |
+|---|---|---|---|
+| G1 | `pest --tia --parallel` (clean) | COMPLETE — graph written; all 7 results present | VERIFIED |
+| G2 | `pest --tia --parallel --filter=adds` | RO | PASS (sweep) |
+| G3 | `pest --parallel --bail`, `trio one` broken | RO; siblings survive | PASS (sweep) |
+| G4 | `pest --tia --parallel --bail` | RO | PASS (sweep) |
+| G5 | `pest --tia --filtered --parallel` after a source edit | narrows to affected; writes | VERIFIED (see I5) |
+| G6 | `pest --tia --parallel` | worker results reach the parent baseline | VERIFIED |
+| G7 | `->only()` + `pest --tia --parallel` | RO | PASS (sweep) |
+| G8 | `pest --tia --parallel --shard=1/2` | RO | PASS (sweep) |
+| G9 | broken test in one worker, `pest --parallel --bail` | whole run is RO, not just that worker's slice | PASS (sweep) |
+| G10 | `pest --parallel --retry` | `InvalidOption`; graph untouched | PASS (sweep) |
+| G11 | `pest --tia --parallel --fresh` | graph rebuilt | VERIFIED |
+| G12 | `edges` after `pest --tia` vs `pest --tia --parallel --fresh` | **equivalent edge sets** — `files=22`, self-edge on all 5 tests, both | **VERIFIED (fixed)** — pre-fix: `files=4`, 0 self-edges |
+
+### H — Baseline key / branch resolution
+
+| # | Case | Target outcome | Phase 1 |
+|---|---|---|---|
+| H1 | `pest --tia` on `master` | only a `master` key | VERIFIED |
+| H2 | plain `pest` on `master` | writes `master`, not `main` | PASS (sweep) |
+| H3 | `pest --bail` truncated on `master` | no `main` key minted | PASS (sweep) |
+| H4 | `pest --filter=adds` on `master` | no `main` key minted | PASS (sweep) |
+| H5 | `git branch -m main`, full `pest --tia` | single `main` key | PASS (sweep) |
+| H6 | `git checkout -b feature/x`, `pest --tia` | `feature/x` key appears; reads fall back to the existing baseline | PASS (sweep) |
+| H7 | detached HEAD, `pest --tia` | falls back to the `main` key for both reads and writes; no `HEAD` key | PASS (sweep) |
+| H8 | after every C and D case | no baseline key other than the real branch | PASS (sweep) |
+| H9 | non-git dir, `pest --tia` | `MissingDependency` — `The feature "Tia mode" requires "git".` | PASS (sweep) |
+| H10 | non-git dir, plain `pest` | runs normally; no baseline dir created | PASS (sweep) |
+
+### I — Filtered mode
+
+| # | Case | Target outcome | Phase 1 |
+|---|---|---|---|
+| I1 | clean + green, `pest --tia --filtered` | `No affected tests found`; zero graph delta | PASS (sweep) |
+| I2 | edit `Calculator.php` | only `CalculatorTest` runs | VERIFIED |
+| I3 | cached failure, clean tree | re-runs it, `from 1 previously unsuccessful test` | PASS (sweep) |
+| I4 | I2 with sentinels | `tree` updated; exactly one entry rewritten; all others retained | PASS (sweep) |
+| I5 | `pest --tia --filtered --parallel` | same narrowing as I2 **and `edges` unchanged** | **VERIFIED (fixed)** — 1 affected test, edges identical |
+| I6 | `PEST_TIA_FILTERED=1 pest --tia` | identical delta to I4 | PASS (sweep) |
+| I7 | `pest --tia --filtered tests/Unit` | explicit path wins; filtered off; RO; notice | PASS (sweep) |
+| I8 | `pest --tia --filtered --coverage-text` | filtered mode disabled by an active coverage report → full suite runs | **VERIFIED (fixed)** — pre-fix: `No affected tests found` |
+| I9 | cached failure whose test file was deleted | WARN `Some cached tests due a re-run could not be located on disk` + `Running the full suite with replay instead of a filtered run` | **VERIFIED (fixed)** — pre-fix: `No tests found`, exit 0 green |
+| I10 | `pest --tia --filtered` with no baseline yet | records a baseline instead of filtering | PASS (sweep) |
+| I11 | edit a Blade view a Feature test renders | the Feature test is selected | PASS (sweep) |
+| I12 | edit `composer.lock` | fingerprint drift → full rebuild, **and the reason is printed sequentially**: `fresh graph (composer.lock changed)` | **VERIFIED (fixed)** — pre-fix: bare `Running in TIA mode.` |
+
+### J — Interactions & regressions
+
+| # | Case | Target outcome | Phase 1 |
+|---|---|---|---|
+| J1 | `pest --tia --fresh --filter=adds` | graph **not** purged; RO | PASS (sweep) |
+| J2 | `pest --tia --refetch --filter=adds` | refetch not performed; RO | PASS (sweep) |
+| J3 | `pest --no-tia --filter=adds` | RO — narrowing wins over `--no-tia`; no notice | PASS (sweep) |
+| J4 | `pest --tia --no-tia` | TIA disabled; COMPLETE | PASS (sweep) |
+| J5 | `<groups><exclude><group>integration</group></exclude></groups>`, `pest --tia` | COMPLETE, no notice — an always-in-force filter applies to baseline runs too | PASS (sweep) |
+| J6 | `pest --tia --compact` | COMPLETE | PASS (sweep) |
+| J7 | `pest --tia -v` | COMPLETE | PASS (sweep) |
+| J8 | `pest --tia --profile` | COMPLETE | PASS (sweep) |
+| J9 | `pest --tia --order-by=random` | COMPLETE | PASS (sweep) |
+| J10 | `pest --tia --random-order-seed=1234` | COMPLETE | PASS (sweep) |
+| J11 | `pest --tia --repeat=2` | COMPLETE — repetition is not narrowing | **SKIP** — `--repeat` is not a Pest option |
+| J12 | `pest --filter=adds` twice | only the executed test's `time` differs; rest byte-identical | PASS (sweep) |
+| J13 | `pest --tia --min=50` | COMPLETE (silent no-op without `--coverage`) | PASS (sweep) |
+| J14 | SIGINT mid-suite | RO — an interrupted run is truncated | PASS (sweep) — signal still does not reach the re-exec'd child (not fixed) |
+| J15 | delete the graph, `pest --tia --filtered` | records a baseline rather than erroring | PASS (sweep) |
+| J16 | corrupt `graph.json`, `pest --tia` | recovers by rebuilding; no crash | PASS (sweep) |
+
+### K — New rows for the phase-one fixes
+
+These assert behaviour no original row covered. All were verified in phase one; re-run them as
+regression guards.
+
+| # | Case | Target outcome | Phase 1 |
+|---|---|---|---|
+| K1 | healthy `pest --tia` graph, then `pest --tia --coverage` | `edges` **byte-identical** — piggyback data may seed empty sets, never narrow populated ones; `files=22` stays `22` | **VERIFIED (fixed)** — pre-fix: `ExampleTest` 16→2 edges, self-edges lost |
+| K2 | same run's headline | `Experimental TIA mode enabled / recording a coverage baseline.` — no false `fresh graph` | **VERIFIED (fixed)** |
+| K3 | `pest --tia` ×3 on a clean tree | replayed entries keep their recorded `time` across all three | **VERIFIED (fixed)** — pre-fix: `0.053 → 0.001 → 0.001 → 0.001` |
+| K4 | add a test file, one `pest --tia` (graph exists, fingerprint matches → replay+refresh) | result **and** edges appear in that same run; `n` grows by 1 | **VERIFIED** — regression guard for change 9 |
+| K5 | add a test file, plain `pest --no-tia` | no result written for it; `n` unchanged; no edges | **VERIFIED (fixed)** — pre-fix: edge-less result inflated `n` |
+| K6 | `pest --tia --parallel` worker argv | carries `-d pcov.directory=<projectRoot>`; `PEST_TIA` unset; not re-exec'd | **VERIFIED** — probe `bin/worker.php` |
+| K7 | second `pest --tia --coverage` (cache primed → replay) | recorder uses link tracking only, does not clear PHPUnit's data mid-collection; coverage report intact | Not yet measured — **new work** |
+| K8 | `pest --tia --parallel --coverage` | workers read `TIA_PIGGYBACK_COVERAGE`; no widened pcov scope; report intact | Not yet measured — **new work** |
+| K9 | `pest --tia --filtered --coverage-html=<dir>` / `--coverage-clover=<file>` | filtered mode off, same as I8, for every flag in `COVERAGE_REPORT_FLAGS` | Not yet measured — **new work** |
+
+---
+
+## Part 3 — Priorities for phase two
+
+0. **Part 1b fixtures** — nothing in C, D6–D10, or E9–E14 means anything until they exist.
+1. **K7, K8, K9** — the only rows never measured. K7/K8 exercise changes 2 and 3, which were
+   reasoned about but not observed; K9 covers the seven `COVERAGE_REPORT_FLAGS` beyond
+   `--coverage-text`.
+2. **B2, B3, F4** and all of **D** and **E** — change 9 touched the shared result-write path, and
+   these are the rows that exercise it hardest. `$recordsEdges` is the thing to falsify: it must be
+   false for every partial and every non-recording run.
+3. **F3–F8** — change 7 injects a `-d` into worker argv; `--mutate --parallel` is the one place that
+   both spawns workers and must write nothing.
+4. **H1–H10** — untouched by these changes; cheapest bulk confirmation.
+5. Raw PHPUnit coverage flags print **no report at all** in Pest, with or without TIA
+   (`--no-tia --coverage-text` is equally silent). Pre-existing, unrelated to change 6 — do not
+   chase it as a regression, but it means I8/K9 can only assert the selection half.
+
+Report per row: tier respected (yes/no), the graph delta under sentinel patching, and for any
+failure the pre-fix contrast (write `git show db70017c:<file>` into vendor, re-run, restore) so a
+regression is told apart from a pre-existing defect.

README.md

@@ -1,19 +1,20 @@
 <p align="center">
-    <img src="https://raw.githubusercontent.com/pestphp/art/master/v4/social.png" width="600" alt="PEST">
+    <img src="https://raw.githubusercontent.com/pestphp/art/master/v5/social.png" width="600" alt="PEST">
     <p align="center">
-        <a href="https://github.com/pestphp/pest/actions"><img alt="GitHub Workflow Status (master)" src="https://img.shields.io/github/actions/workflow/status/pestphp/pest/tests.yml?branch=4.x&label=Tests%204.x"></a>
+        <a href="https://github.com/pestphp/pest/actions"><img alt="GitHub Workflow Status (5.x)" src="https://img.shields.io/github/actions/workflow/status/pestphp/pest/tests.yml?branch=5.x&label=Tests%205.x"></a>
         <a href="https://packagist.org/packages/pestphp/pest"><img alt="Total Downloads" src="https://img.shields.io/packagist/dt/pestphp/pest"></a>
         <a href="https://packagist.org/packages/pestphp/pest"><img alt="Latest Version" src="https://img.shields.io/packagist/v/pestphp/pest"></a>
         <a href="https://packagist.org/packages/pestphp/pest"><img alt="License" src="https://img.shields.io/packagist/l/pestphp/pest"></a>
         <a href="https://whyphp.dev"><img src="https://img.shields.io/badge/Why_PHP-in_2026-7A86E8?style=flat-square&labelColor=18181b" alt="Why PHP in 2026"></a>
+        <a href="https://youtube.com/@nunomaduro?sub_confirmation=1"><img alt="YouTube Channel Subscribers" src="https://img.shields.io/youtube/channel/subscribers/UCO_hYZF2gb_CyG5sA7ArlGg?style=flat&label=youtube&color=brightgreen"></a>
     </p>
 </p>
 
 ------
 
-> Pest v4 Now Available: **[Read the announcement »](https://pestphp.com/docs/pest-v4-is-here-now-with-browser-testing)**.
+> Pest v5 Now Available: **[Read the announcement »](https://pestphp.com/docs/pest5-now-available)**.
 
-**Pest** is an elegant PHP testing Framework with a focus on simplicity, meticulously designed to bring back the joy of testing in PHP.
+**Pest** is an elegant testing framework for PHP developers and AI agents.
 
 - Explore our docs at **[pestphp.com »](https://pestphp.com)**
 - Follow the creator Nuno Maduro:
@@ -28,26 +29,13 @@
 
 We cannot thank our sponsors enough for their incredible support in funding Pest's development. Their contributions have been instrumental in making Pest the best it can be. For those who are interested in becoming a sponsor, please visit Nuno Maduro's Sponsor page at **[github.com/sponsors/nunomaduro](https://github.com/sponsors/nunomaduro)**.
 
-
-### Platinum Sponsors
-
-- **[CodeRabbit](https://coderabbit.ai/?ref=pestphp)**
-- **[Devin](https://devin.ai/?ref=nunomaduro)**
-- **[Mailtrap](https://l.rw.rw/pestphp)**
-- **[Tighten](https://tighten.com/?ref=nunomaduro)**
-- **[Redberry](https://redberry.international/laravel-development/?utm_source=pest&utm_medium=banner&utm_campaign=pest_sponsorship)**
-
-### Gold Sponsors
-
 - **[CMS Max](https://cmsmax.com/?ref=pestphp)**
-
-### Premium Sponsors
-
-- [Zapiet](https://zapiet.com/?ref=pestphp)
-- [Load Forge](https://loadforge.com/?ref=pestphp)
-- [Route4Me](https://route4me.com/pt?ref=pestphp)
-- [Nerdify](https://getnerdify.com/?ref=pestphp)
-- [Akaunting](https://akaunting.com/?ref=pestphp)
-- [LambdaTest](https://lambdatest.com/?ref=pestphp)
+- **[PhpStorm](https://jb.gg/nuno)**
+- **[CodeRabbit](https://coderabbit.link/nunomaduro)**
+- **[SerpApi](https://serpapi.com/?ref=nunomaduro)**
+- **[Typesense](https://typesense.org/?ref=nunomaduro)**
+- **[Bento](https://bentonow.com/?ref=nunomaduro)**
+- **[Pixel](https://wearepixel.com.au/?ref=nunomaduro)**
+- **[Redberry](https://redberry.international/laravel-development/?ref=nunomaduro)**
 
 Pest is an open-sourced software licensed under the **[MIT license](https://opensource.org/licenses/MIT)**.

RELEASE.md

@@ -2,10 +2,10 @@
 
 When releasing a new version of Pest there are some checks and updates that need to be done:
 
-> **For Pest v3 you should use the `3.x` branch instead.**
+> **For Pest v4 you should use the `4.x` branch instead.**
 
-- Clear your local repository with: `git add . && git reset --hard && git checkout 4.x`
-- On the GitHub repository, check the contents of [github.com/pestphp/pest/compare/{latest_version}...4.x](https://github.com/pestphp/pest/compare/{latest_version}...4.x)
+- Clear your local repository with: `git add . && git reset --hard && git checkout 5.x`
+- On the GitHub repository, check the contents of [github.com/pestphp/pest/compare/{latest_version}...5.x](https://github.com/pestphp/pest/compare/{latest_version}...5.x)
 - Update the version number in [src/Pest.php](src/Pest.php)
 - Run the tests locally using: `composer test`
 - Commit the Pest file with the message: `git commit -m "release: vX.X.X"`

bin/pest

@@ -3,13 +3,16 @@
 
 declare(strict_types=1);
 
+use Pest\Contracts\Restarter;
 use Pest\Kernel;
 use Pest\Panic;
+use Pest\Support\Container;
 use Pest\TestCaseFilters\GitDirtyTestCaseFilter;
 use Pest\TestCaseMethodFilters\AssigneeTestCaseFilter;
 use Pest\TestCaseMethodFilters\IssueTestCaseFilter;
 use Pest\TestCaseMethodFilters\NotesTestCaseFilter;
 use Pest\TestCaseMethodFilters\PrTestCaseFilter;
+use Pest\TestCaseMethodFilters\FlakyTestCaseFilter;
 use Pest\TestCaseMethodFilters\TodoTestCaseFilter;
 use Pest\TestSuite;
 use Symfony\Component\Console\Input\ArgvInput;
@@ -23,6 +26,7 @@ use Symfony\Component\Console\Output\ConsoleOutput;
 
     $dirty = false;
     $todo = false;
+    $flaky = false;
     $notes = false;
 
     foreach ($arguments as $key => $value) {
@@ -57,6 +61,11 @@ use Symfony\Component\Console\Output\ConsoleOutput;
             unset($arguments[$key]);
         }
 
+        if ($value === '--flaky') {
+            $flaky = true;
+            unset($arguments[$key]);
+        }
+
         if ($value === '--notes') {
             $notes = true;
             unset($arguments[$key]);
@@ -135,6 +144,7 @@ use Symfony\Component\Console\Output\ConsoleOutput;
 
     // Get $rootPath based on $autoloadPath
     $rootPath = dirname($autoloadPath, 2);
+
     $input = new ArgvInput;
 
     $testSuite = TestSuite::getInstance(
@@ -150,6 +160,10 @@ use Symfony\Component\Console\Output\ConsoleOutput;
         $testSuite->tests->addTestCaseMethodFilter(new TodoTestCaseFilter);
     }
 
+    if ($flaky) {
+        $testSuite->tests->addTestCaseMethodFilter(new FlakyTestCaseFilter);
+    }
+
     if ($notes) {
         $testSuite->tests->addTestCaseMethodFilter(new NotesTestCaseFilter);
     }
@@ -181,6 +195,15 @@ use Symfony\Component\Console\Output\ConsoleOutput;
     try {
         $kernel = Kernel::boot($testSuite, $input, $output);
 
+        $container = Container::getInstance();
+
+        foreach (Kernel::RESTARTERS as $restarterClass) {
+            $restarter = $container->get($restarterClass);
+            assert($restarter instanceof Restarter);
+
+            $restarter->maybeRestart($rootPath, $originalArguments);
+        }
+
         $result = $kernel->handle($originalArguments, $arguments);
 
         $kernel->terminate();

bin/pest-tia-vite-deps.mjs

@@ -0,0 +1,374 @@
+#!/usr/bin/env node
+
+import { readdir, readFile } from 'node:fs/promises'
+import { existsSync } from 'node:fs'
+import { createRequire } from 'node:module'
+import { resolve, relative, extname, sep, join } from 'node:path'
+import { pathToFileURL } from 'node:url'
+
+const PAGE_EXTENSIONS = new Set([
+  '.vue', '.svelte',
+  '.tsx', '.jsx',
+  '.ts', '.js',
+  '.mts', '.cts', '.mjs', '.cjs',
+])
+const ASSET_EXT_RE = /\.(css|scss|sass|less|styl|stylus|svg|png|jpe?g|gif|webp|avif|ico|bmp|woff2?|ttf|eot|otf|md|mdx|txt|html|mp4|webm|mp3|wav|ogg|m4a|pdf|wasm|glsl|frag|vert)$/i
+const PROJECT_ROOT = resolve(process.argv[2] ?? process.cwd())
+const PAGE_DIR_CANDIDATES = [
+  'resources/js/Pages',
+  'resources/js/pages',
+  'assets/js/Pages',
+  'assets/js/pages',
+  'assets/Pages',
+  'assets/pages',
+]
+
+async function loadRolldown() {
+  const projectRequire = createRequire(join(PROJECT_ROOT, 'package.json'))
+  let path = null
+
+  try { path = projectRequire.resolve('rolldown') } catch {}
+
+  if (path === null) {
+    // rolldown-vite installs (vite@npm:rolldown-vite) ship rolldown as a
+    // dependency of the vite package rather than a top-level install.
+    try {
+      const viteRequire = createRequire(projectRequire.resolve('vite/package.json'))
+      path = viteRequire.resolve('rolldown')
+    } catch {}
+  }
+
+  if (path === null) return null
+
+  return await import(pathToFileURL(path).href)
+}
+
+export function stripJsonComments(raw) {
+  let out = ''
+  let inString = false
+  let quote = ''
+  let inLine = false
+  let inBlock = false
+
+  for (let i = 0; i < raw.length; i++) {
+    const c = raw[i]
+    const n = raw[i + 1]
+
+    if (inLine) {
+      if (c === '\n') { inLine = false; out += c }
+      continue
+    }
+    if (inBlock) {
+      if (c === '*' && n === '/') { inBlock = false; i++ }
+      continue
+    }
+    if (inString) {
+      out += c
+      if (c === '\\') { out += n ?? ''; i++; continue }
+      if (c === quote) inString = false
+      continue
+    }
+    if (c === '"' || c === "'") { inString = true; quote = c; out += c; continue }
+    if (c === '/' && n === '/') { inLine = true; i++; continue }
+    if (c === '/' && n === '*') { inBlock = true; i++; continue }
+    if (c === '}' || c === ']') out = out.replace(/,\s*$/, '')
+    out += c
+  }
+
+  return out
+}
+
+async function readJsonWithComments(path) {
+  const raw = await readFile(path, 'utf8')
+  return JSON.parse(stripJsonComments(raw))
+}
+
+export async function loadAliasFromTsconfig(projectRoot = PROJECT_ROOT) {
+  const alias = {}
+  for (const name of ['tsconfig.json', 'jsconfig.json']) {
+    const p = join(projectRoot, name)
+    if (!existsSync(p)) continue
+    let cfg
+    try { cfg = await readJsonWithComments(p) } catch { continue }
+    const baseUrl = resolve(projectRoot, cfg?.compilerOptions?.baseUrl ?? '.')
+    const paths = cfg?.compilerOptions?.paths ?? {}
+    for (const [key, targets] of Object.entries(paths)) {
+      if (!key.endsWith('/*')) continue
+      const t0 = Array.isArray(targets) ? targets[0] : null
+      if (typeof t0 !== 'string' || !t0.endsWith('/*')) continue
+      const aliasKey = key.slice(0, -2)
+      if (alias[aliasKey] !== undefined) continue
+      alias[aliasKey] = resolve(baseUrl, t0.slice(0, -2))
+    }
+  }
+  return alias
+}
+
+const VITE_CONFIG_FILES = [
+  'vite.config.ts',
+  'vite.config.js',
+  'vite.config.mjs',
+  'vite.config.cjs',
+  'vite.config.mts',
+  'vite.config.cts',
+]
+
+function resolveAliasTarget(projectRoot, target) {
+  if (target.startsWith('/')) {
+    // Vite resolves a leading slash against the project root, unless the
+    // config author used a genuinely absolute path.
+    return existsSync(target) ? target : resolve(projectRoot, '.' + target)
+  }
+
+  return resolve(projectRoot, target)
+}
+
+async function usesLaravelVitePlugin(projectRoot) {
+  const p = join(projectRoot, 'package.json')
+  if (!existsSync(p)) return false
+
+  try {
+    const pkg = JSON.parse(await readFile(p, 'utf8'))
+    return Boolean(pkg.dependencies?.['laravel-vite-plugin'] ?? pkg.devDependencies?.['laravel-vite-plugin'])
+  } catch {
+    return false
+  }
+}
+
+export async function loadAliasFromViteConfig(projectRoot = PROJECT_ROOT) {
+  const alias = {}
+  let source = null
+
+  for (const name of VITE_CONFIG_FILES) {
+    const p = join(projectRoot, name)
+    if (!existsSync(p)) continue
+    try { source = await readFile(p, 'utf8') } catch { continue }
+    break
+  }
+
+  if (source !== null) {
+    // The config is executable code we cannot import safely, so extract alias
+    // entries textually: a quoted `@…`/`~…` key, then the last quoted path in
+    // the value expression — covers `'@': '/resources/js'` as well as
+    // `'@': path.resolve(__dirname, 'resources/js')`. The value stops at a
+    // top-level comma; call arguments are kept via the paren group.
+    for (const m of source.matchAll(/['"`]([@~][\w./-]*)['"`]\s*:\s*((?:\([^)\n]*\)|[^,\n])*)/g)) {
+      const key = m[1]
+      if (alias[key] !== undefined) continue
+
+      const paths = [...m[2].matchAll(/['"`]([^'"`]+)['"`]/g)].map((p) => p[1])
+      const target = paths.length > 0 ? paths[paths.length - 1] : null
+      if (!target || target.includes('*')) continue
+
+      alias[key] = resolveAliasTarget(projectRoot, target)
+    }
+  }
+
+  // laravel-vite-plugin registers '@' → resources/js by default.
+  if (alias['@'] === undefined && (await usesLaravelVitePlugin(projectRoot))) {
+    alias['@'] = resolve(projectRoot, 'resources/js')
+  }
+
+  return alias
+}
+
+async function listPageFiles(pagesDir) {
+  if (!existsSync(pagesDir)) return []
+
+  const out = []
+  const walk = async (dir) => {
+    let entries
+    try { entries = await readdir(dir, { withFileTypes: true }) } catch { return }
+    for (const entry of entries) {
+      const full = resolve(dir, entry.name)
+      if (entry.isDirectory()) { await walk(full); continue }
+      if (PAGE_EXTENSIONS.has(extname(entry.name))) out.push(full)
+    }
+  }
+
+  await walk(pagesDir)
+  return out
+}
+
+async function discoverPagesDir() {
+  const override = process.env.TIA_VITE_PAGES_DIR
+  if (override && override.length > 0) {
+    return resolve(PROJECT_ROOT, override.replace(/\\/g, '/'))
+  }
+
+  for (const rel of PAGE_DIR_CANDIDATES) {
+    const abs = resolve(PROJECT_ROOT, rel)
+    if (!existsSync(abs)) continue
+    const files = await listPageFiles(abs)
+    if (files.length > 0) return abs
+  }
+
+  return null
+}
+
+function componentNameFor(pageAbs, pagesDir) {
+  const rel = relative(pagesDir, pageAbs).split(sep).join('/')
+  const ext = extname(rel)
+  return rel.slice(0, rel.length - ext.length)
+}
+
+function isLocalSpecifier(source, aliasKeys) {
+  if (source.startsWith('.') || source.startsWith('/')) return true
+  for (const key of aliasKeys) {
+    if (source === key || source.startsWith(key + '/')) return true
+  }
+  return false
+}
+
+async function main() {
+  const pagesDir = await discoverPagesDir()
+
+  if (pagesDir === null) {
+    process.stdout.write('{}')
+    return
+  }
+
+  const pages = await listPageFiles(pagesDir)
+
+  if (pages.length === 0) {
+    process.stdout.write('{}')
+    return
+  }
+
+  const loaded = await loadRolldown()
+
+  if (loaded === null) {
+    process.stdout.write('{}')
+    return
+  }
+
+  const { rolldown } = loaded
+  // The vite config is what the dev server actually resolves with — let it win.
+  const alias = { ...(await loadAliasFromTsconfig()), ...(await loadAliasFromViteConfig()) }
+  const aliasKeys = Object.keys(alias)
+
+  const graph = new Map()
+
+  const collector = {
+    name: 'pest-tia-collector',
+    moduleParsed(info) {
+      const id = info.id
+      if (!id || id.startsWith('\0')) return
+      const deps = new Set()
+      for (const i of info.importedIds) if (i && !i.startsWith('\0')) deps.add(i)
+      for (const i of info.dynamicallyImportedIds) if (i && !i.startsWith('\0')) deps.add(i)
+      graph.set(id, deps)
+    },
+  }
+
+  const externalBare = {
+    name: 'pest-tia-external-bare',
+    resolveId(source) {
+      if (!source) return null
+      if (isLocalSpecifier(source, aliasKeys)) return null
+      return { id: source, external: true }
+    },
+  }
+
+  const assetStub = {
+    name: 'pest-tia-asset-stub',
+    load(id) {
+      if (!id) return null
+      if (ASSET_EXT_RE.test(id)) {
+        return { code: 'export default null', moduleSideEffects: false }
+      }
+      return null
+    },
+  }
+
+  const input = Object.create(null)
+  for (let i = 0; i < pages.length; i++) input[`p${i}`] = pages[i]
+
+  const bundle = await rolldown({
+    input,
+    cwd: PROJECT_ROOT,
+    resolve: {
+      alias,
+      extensions: ['.tsx', '.ts', '.jsx', '.js', '.mts', '.cts', '.mjs', '.cjs', '.json', '.vue', '.svelte'],
+    },
+    transform: { jsx: 'preserve' },
+    treeshake: false,
+    plugins: [externalBare, assetStub, collector],
+    logLevel: 'silent',
+    onLog: () => {},
+  })
+
+  try {
+    await bundle.generate({ format: 'esm' })
+  } finally {
+    await bundle.close()
+  }
+
+  const reverse = new Map()
+  const transitiveCache = new Map()
+
+  const computeTransitive = (id, stack) => {
+    const cached = transitiveCache.get(id)
+    if (cached) return cached
+    if (stack.has(id)) return null
+
+    stack.add(id)
+    const acc = new Set()
+    // A set computed while skipping an in-stack (cyclic) dependency is missing
+    // that dependency's subtree and must not be memoized — the ancestor call
+    // completes it for the current traversal, but a cached copy would leak the
+    // incomplete set into other pages' traversals.
+    let complete = true
+    const deps = graph.get(id)
+    if (deps) {
+      for (const dep of deps) {
+        if (!dep || dep.startsWith('\0')) continue
+        if (dep.startsWith(PROJECT_ROOT)) {
+          const rel = relative(PROJECT_ROOT, dep).split(sep).join('/')
+          acc.add(rel)
+        }
+        if (stack.has(dep)) {
+          complete = false
+          continue
+        }
+        const child = computeTransitive(dep, stack)
+        if (child) for (const r of child) acc.add(r)
+        if (!transitiveCache.has(dep)) complete = false
+      }
+    }
+    stack.delete(id)
+    if (complete) transitiveCache.set(id, acc)
+    return acc
+  }
+
+  for (const page of pages) {
+    const pageComponent = componentNameFor(page, pagesDir)
+    const reachable = computeTransitive(page, new Set())
+    if (!reachable) continue
+    for (const rel of reachable) {
+      const bucket = reverse.get(rel) ?? new Set()
+      bucket.add(pageComponent)
+      reverse.set(rel, bucket)
+    }
+  }
+
+  const payload = Object.create(null)
+  const keys = [...reverse.keys()].sort()
+  for (const key of keys) {
+    payload[key] = [...reverse.get(key)].sort()
+  }
+
+  process.stdout.write(JSON.stringify(payload))
+}
+
+const invokedDirectly = process.argv[1] !== undefined
+  && import.meta.url === pathToFileURL(process.argv[1]).href
+
+if (invokedDirectly) {
+  try {
+    await main()
+  } catch (err) {
+    process.stderr.write(String(err?.stack ?? err ?? 'unknown error'))
+    process.exit(1)
+  }
+}

bin/worker.php

@@ -6,6 +6,7 @@ use ParaTest\WrapperRunner\ApplicationForWrapperWorker;
 use ParaTest\WrapperRunner\WrapperWorker;
 use Pest\Kernel;
 use Pest\Plugins\Actions\CallsHandleArguments;
+use Pest\Support\Container;
 use Pest\TestSuite;
 use Symfony\Component\Console\Input\ArgvInput;
 use Symfony\Component\Console\Output\ConsoleOutput;
@@ -58,6 +59,15 @@ $bootPest = (static function (): void {
         }
     }
 
+    $container = Container::getInstance();
+    $rootPath = dirname(PHPUNIT_COMPOSER_INSTALL, 2);
+
+    foreach (Kernel::RESTARTERS as $restarterClass) {
+        $restarter = $container->get($restarterClass);
+
+        $restarter->maybeRestart($rootPath, $_SERVER['argv']);
+    }
+
     assert(isset($getopt['status-file']) && is_string($getopt['status-file']));
     $statusFile = fopen($getopt['status-file'], 'wb');
     assert(is_resource($statusFile));

composer.json

@@ -17,20 +17,20 @@
         }
     ],
     "require": {
-        "php": "^8.3.0",
-        "brianium/paratest": "^7.16.0",
-        "nunomaduro/collision": "^8.8.3",
-        "nunomaduro/termwind": "^2.3.3",
-        "pestphp/pest-plugin": "^4.0.0",
-        "pestphp/pest-plugin-arch": "^4.0.0",
-        "pestphp/pest-plugin-mutate": "^4.0.1",
-        "pestphp/pest-plugin-profanity": "^4.2.1",
-        "phpunit/phpunit": "^12.5.4",
-        "symfony/process": "^7.4.3|^8.0.0"
+        "php": "^8.4",
+        "brianium/paratest": "^7.23.1",
+        "nunomaduro/collision": "^8.9.5",
+        "nunomaduro/termwind": "^2.4.0",
+        "pestphp/pest-plugin": "^5.0.0",
+        "pestphp/pest-plugin-arch": "^5.0.0",
+        "pestphp/pest-plugin-mutate": "^5.0.1",
+        "pestphp/pest-plugin-profanity": "^5.0.0",
+        "phpunit/phpunit": "^13.2.6",
+        "symfony/process": "^8.1.0"
     },
     "conflict": {
         "filp/whoops": "<2.18.3",
-        "phpunit/phpunit": ">12.5.4",
+        "phpunit/phpunit": ">13.2.6",
         "sebastian/exporter": "<7.0.0",
         "webmozart/assert": "<1.11.0"
     },
@@ -48,17 +48,23 @@
             "Tests\\Fixtures\\Covers\\": "tests/Fixtures/Covers",
             "Tests\\Fixtures\\Inheritance\\": "tests/Fixtures/Inheritance",
             "Tests\\Fixtures\\Arch\\": "tests/Fixtures/Arch",
+            "Tests\\Fixtures\\Tia\\": "tests/Fixtures/Tia",
             "Tests\\": "tests/PHPUnit/"
         },
+        "classmap": [
+            "tests/Fixtures/Arch/ToBeCasedCorrectly/IncorrectCasing/incorrectCasing.php"
+        ],
         "files": [
             "tests/Autoload.php"
         ]
     },
     "require-dev": {
-        "pestphp/pest-dev-tools": "^4.0.0",
-        "pestphp/pest-plugin-browser": "^4.1.1",
-        "pestphp/pest-plugin-type-coverage": "^4.0.3",
-        "psy/psysh": "^0.12.18"
+        "pestphp/pest-dev-tools": "^5.0.0",
+        "pestphp/pest-plugin-browser": "^5.0.0",
+        "pestphp/pest-plugin-phpstan": "^5.0.0",
+        "pestphp/pest-plugin-rector": "^5.0.2",
+        "pestphp/pest-plugin-type-coverage": "^5.0.2",
+        "psy/psysh": "^0.12.24"
     },
     "minimum-stability": "dev",
     "prefer-stable": true,
@@ -73,10 +79,14 @@
         "bin/pest"
     ],
     "scripts": {
-        "refacto": "rector",
-        "lint": "pint --parallel",
-        "test:refacto": "rector --dry-run",
-        "test:lint": "pint --parallel --test",
+        "lint": [
+            "rector",
+            "pint --parallel"
+        ],
+        "test:lint": [
+            "rector --dry-run",
+            "pint --parallel --test"
+        ],
         "test:profanity": "php bin/pest --profanity --compact",
         "test:type:check": "phpstan analyse --ansi --memory-limit=-1 --debug",
         "test:type:coverage": "php -d memory_limit=-1  bin/pest --type-coverage --min=100",
@@ -86,7 +96,6 @@
         "test:integration": "php bin/pest --group=integration -v",
         "update:snapshots": "REBUILD_SNAPSHOTS=true php bin/pest --update-snapshots",
         "test": [
-            "@test:refacto",
             "@test:lint",
             "@test:type:check",
             "@test:type:coverage",
@@ -116,6 +125,7 @@
                 "Pest\\Plugins\\Verbose",
                 "Pest\\Plugins\\Version",
                 "Pest\\Plugins\\Shard",
+                "Pest\\Plugins\\Tia",
                 "Pest\\Plugins\\Parallel"
             ]
         },

docker-compose.yml

@@ -1,14 +0,0 @@
-version: "3.8"
-
-services:
-  php:
-    build:
-      context: ./docker
-    volumes:
-      - .:/var/www/html
-  composer:
-    build:
-      context: ./docker
-    volumes:
-      - .:/var/www/html
-    entrypoint: ["composer"]

overrides/Logging/JUnit/JunitXmlLogger.php

@@ -1,6 +1,39 @@
 <?php
 
+/*
+ * BSD 3-Clause License
+ *
+ * Copyright (c) 2001-2023, Sebastian Bergmann
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
 declare(strict_types=1);
+
 /*
  * This file is part of PHPUnit.
  *
@@ -14,6 +47,9 @@ namespace PHPUnit\Logging\JUnit;
 
 use DOMDocument;
 use DOMElement;
+use Pest\Logging\Converter;
+use Pest\Support\Container;
+use Pest\TestSuite;
 use PHPUnit\Event\Code\Test;
 use PHPUnit\Event\Code\TestMethod;
 use PHPUnit\Event\EventFacadeIsSealedException;
@@ -50,7 +86,7 @@ final class JunitXmlLogger
 {
     private readonly Printer $printer;
 
-    private readonly \Pest\Logging\Converter $converter; // pest-added
+    private readonly Converter $converter; // pest-added
 
     private DOMDocument $document;
 
@@ -108,7 +144,7 @@ final class JunitXmlLogger
     public function __construct(Printer $printer, Facade $facade)
     {
         $this->printer = $printer;
-        $this->converter = new \Pest\Logging\Converter(\Pest\Support\Container::getInstance()->get(\Pest\TestSuite::class)->rootPath); // pest-added
+        $this->converter = new Converter(Container::getInstance()->get(TestSuite::class)->rootPath); // pest-added
 
         $this->registerSubscribers($facade);
         $this->createDocument();

overrides/ParaTest/WrapperRunner/ProgressPrinterOutput.php

@@ -0,0 +1,71 @@
+<?php
+
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2011 Brian Scaturro
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+declare(strict_types=1);
+
+namespace ParaTest\WrapperRunner;
+
+use PHPUnit\TextUI\Output\Printer;
+
+use function preg_match;
+
+/**
+ * @internal
+ *
+ * This file is overridden so the "T" progress character — emitted by Pest for
+ * "todo" tests — is routed to the progress file next to the regular characters,
+ * instead of being treated as unexpected output.
+ */
+final readonly class ProgressPrinterOutput implements Printer
+{
+    public function __construct(
+        private Printer $progressPrinter,
+        private Printer $outputPrinter,
+    ) {}
+
+    public function print(string $buffer): void
+    {
+        // Skip anything in \PHPUnit\TextUI\Output\Default\ProgressPrinter\ProgressPrinter::printProgress except $progress
+        if (
+            $buffer === "\n"
+            || preg_match('/^ +$/', $buffer) === 1
+            || preg_match('/^ \d+ \/ \d+ \(...%\)$/', $buffer) === 1
+        ) {
+            return;
+        }
+
+        match ($buffer) {
+            'E', 'F', 'I', 'N', 'D', 'R', 'W', 'S', 'T', '.' => $this->progressPrinter->print($buffer),
+            default => $this->outputPrinter->print($buffer),
+        };
+    }
+
+    public function flush(): void
+    {
+        $this->progressPrinter->flush();
+        $this->outputPrinter->flush();
+    }
+}

overrides/Runner/TestSuiteLoader.php

@@ -90,11 +90,11 @@ final class TestSuiteLoader
         (static function () use ($suiteClassFile) {
             try {
                 include_once $suiteClassFile;
+
+                TestSuite::getInstance()->tests->makeIfNeeded($suiteClassFile);
             } catch (Throwable $e) {
                 Panic::with($e);
             }
-
-            TestSuite::getInstance()->tests->makeIfNeeded($suiteClassFile);
         })();
 
         $loadedClasses = array_values(

overrides/Runner/TestSuiteSorter.php

@@ -0,0 +1,388 @@
+<?php
+
+/*
+ * BSD 3-Clause License
+ *
+ * Copyright (c) 2001-2023, Sebastian Bergmann
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+declare(strict_types=1);
+
+/*
+ * This file is part of PHPUnit.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace PHPUnit\Runner;
+
+use PHPUnit\Framework\DataProviderTestSuite;
+use PHPUnit\Framework\Reorderable;
+use PHPUnit\Framework\Test;
+use PHPUnit\Framework\TestCase;
+use PHPUnit\Framework\TestSuite;
+use PHPUnit\Runner\ResultCache\NullResultCache;
+use PHPUnit\Runner\ResultCache\ResultCache;
+use PHPUnit\Runner\ResultCache\ResultCacheId;
+
+use function array_diff;
+use function array_merge;
+use function array_reverse;
+use function array_splice;
+use function assert;
+use function count;
+use function in_array;
+use function max;
+use function shuffle;
+use function usort;
+
+/**
+ * @internal This class is not covered by the backward compatibility promise for PHPUnit
+ */
+final class TestSuiteSorter
+{
+    public const int ORDER_DEFAULT = 0;
+
+    public const int ORDER_RANDOMIZED = 1;
+
+    public const int ORDER_REVERSED = 2;
+
+    public const int ORDER_DEFECTS_FIRST = 3;
+
+    public const int ORDER_DURATION = 4;
+
+    public const int ORDER_SIZE = 5;
+
+    /**
+     * @var non-empty-array<non-empty-string, positive-int>
+     */
+    private const array SIZE_SORT_WEIGHT = [
+        'small' => 1,
+        'medium' => 2,
+        'large' => 3,
+        'unknown' => 4,
+    ];
+
+    /**
+     * @var array<string, int> Associative array of (string => DEFECT_SORT_WEIGHT) elements
+     */
+    private array $defectSortOrder = [];
+
+    private readonly ResultCache $cache;
+
+    public function __construct(?ResultCache $cache = null)
+    {
+        $this->cache = $cache ?? new NullResultCache;
+    }
+
+    /**
+     * @throws Exception
+     */
+    public function reorderTestsInSuite(Test $suite, int $order, bool $resolveDependencies, int $orderDefects): void
+    {
+        $allowedOrders = [
+            self::ORDER_DEFAULT,
+            self::ORDER_REVERSED,
+            self::ORDER_RANDOMIZED,
+            self::ORDER_DURATION,
+            self::ORDER_SIZE,
+        ];
+
+        if (! in_array($order, $allowedOrders, true)) {
+            // @codeCoverageIgnoreStart
+            throw new InvalidOrderException;
+            // @codeCoverageIgnoreEnd
+        }
+
+        $allowedOrderDefects = [
+            self::ORDER_DEFAULT,
+            self::ORDER_DEFECTS_FIRST,
+        ];
+
+        if (! in_array($orderDefects, $allowedOrderDefects, true)) {
+            // @codeCoverageIgnoreStart
+            throw new InvalidOrderException;
+            // @codeCoverageIgnoreEnd
+        }
+
+        if ($suite instanceof TestSuite) {
+            foreach ($suite as $_suite) {
+                $this->reorderTestsInSuite($_suite, $order, $resolveDependencies, $orderDefects);
+            }
+
+            if ($orderDefects === self::ORDER_DEFECTS_FIRST) {
+                $this->addSuiteToDefectSortOrder($suite);
+            }
+
+            $this->sort($suite, $order, $resolveDependencies, $orderDefects);
+        }
+    }
+
+    private function sort(TestSuite $suite, int $order, bool $resolveDependencies, int $orderDefects): void
+    {
+        if ($suite->tests() === []) {
+            return;
+        }
+
+        if ($order === self::ORDER_REVERSED) {
+            $suite->setTests($this->reverse($suite->tests()));
+        } elseif ($order === self::ORDER_RANDOMIZED) {
+            $suite->setTests($this->randomize($suite->tests()));
+        } elseif ($order === self::ORDER_DURATION) {
+            $suite->setTests($this->sortByDuration($suite->tests()));
+        } elseif ($order === self::ORDER_SIZE) {
+            $suite->setTests($this->sortBySize($suite->tests()));
+        }
+
+        if ($orderDefects === self::ORDER_DEFECTS_FIRST) {
+            $suite->setTests($this->sortDefectsFirst($suite->tests()));
+        }
+
+        if ($resolveDependencies && ! ($suite instanceof DataProviderTestSuite)) {
+            $tests = $suite->tests();
+
+            /** @noinspection PhpParamsInspection */
+            /** @phpstan-ignore argument.type */
+            $suite->setTests($this->resolveDependencies($tests));
+        }
+    }
+
+    private function addSuiteToDefectSortOrder(TestSuite $suite): void
+    {
+        $max = 0;
+
+        foreach ($suite->tests() as $test) {
+            assert($test instanceof Reorderable);
+
+            $sortId = $test->sortId();
+
+            if (! isset($this->defectSortOrder[$sortId])) {
+                $this->defectSortOrder[$sortId] = $this->cache->status(ResultCacheId::fromReorderable($test))->asInt();
+                $max = max($max, $this->defectSortOrder[$sortId]);
+            }
+        }
+
+        $this->defectSortOrder[$suite->sortId()] = $max;
+    }
+
+    /**
+     * @param  list<Test>  $tests
+     * @return list<Test>
+     */
+    private function reverse(array $tests): array
+    {
+        return array_reverse($tests);
+    }
+
+    /**
+     * @param  list<Test>  $tests
+     * @return list<Test>
+     */
+    private function randomize(array $tests): array
+    {
+        shuffle($tests);
+
+        return $tests;
+    }
+
+    /**
+     * @param  list<Test>  $tests
+     * @return list<Test>
+     */
+    private function sortDefectsFirst(array $tests): array
+    {
+        usort(
+            $tests,
+            fn (Test $left, Test $right) => $this->cmpDefectPriorityAndTime($left, $right),
+        );
+
+        return $tests;
+    }
+
+    /**
+     * @param  list<Test>  $tests
+     * @return list<Test>
+     */
+    private function sortByDuration(array $tests): array
+    {
+        usort(
+            $tests,
+            fn (Test $left, Test $right) => $this->cmpDuration($left, $right),
+        );
+
+        return $tests;
+    }
+
+    /**
+     * @param  list<Test>  $tests
+     * @return list<Test>
+     */
+    private function sortBySize(array $tests): array
+    {
+        usort(
+            $tests,
+            fn (Test $left, Test $right) => $this->cmpSize($left, $right),
+        );
+
+        return $tests;
+    }
+
+    /**
+     * Comparator callback function to sort tests for "reach failure as fast as possible".
+     *
+     * 1. sort tests by defect weight defined in self::DEFECT_SORT_WEIGHT
+     * 2. when tests are equally defective, sort the fastest to the front
+     * 3. do not reorder successful tests
+     */
+    private function cmpDefectPriorityAndTime(Test $a, Test $b): int
+    {
+        assert($a instanceof Reorderable);
+        assert($b instanceof Reorderable);
+
+        $priorityA = $this->defectSortOrder[$a->sortId()] ?? 0;
+        $priorityB = $this->defectSortOrder[$b->sortId()] ?? 0;
+
+        if ($priorityA !== $priorityB) {
+            // Sort defect weight descending
+            return $priorityB <=> $priorityA;
+        }
+
+        if ($priorityA > 0 || $priorityB > 0) {
+            return $this->cmpDuration($a, $b);
+        }
+
+        // do not change execution order
+        return 0;
+    }
+
+    /**
+     * Compares test duration for sorting tests by duration ascending.
+     */
+    private function cmpDuration(Test $a, Test $b): int
+    {
+        if (! ($a instanceof Reorderable && $b instanceof Reorderable)) {
+            return 0;
+        }
+
+        return $this->cache->time(ResultCacheId::fromReorderable($a)) <=> $this->cache->time(ResultCacheId::fromReorderable($b));
+    }
+
+    /**
+     * Compares test size for sorting tests small->medium->large->unknown.
+     */
+    private function cmpSize(Test $a, Test $b): int
+    {
+        $sizeA = ($a instanceof TestCase || $a instanceof DataProviderTestSuite)
+            ? $a->size()->asString()
+            : 'unknown';
+        $sizeB = ($b instanceof TestCase || $b instanceof DataProviderTestSuite)
+            ? $b->size()->asString()
+            : 'unknown';
+
+        return self::SIZE_SORT_WEIGHT[$sizeA] <=> self::SIZE_SORT_WEIGHT[$sizeB];
+    }
+
+    /**
+     * Reorder Tests within a TestCase in such a way as to resolve as many dependencies as possible.
+     * The algorithm will leave the tests in original running order when it can.
+     * For more details see the documentation for test dependencies.
+     *
+     * Short description of algorithm:
+     * 1. Pick the next Test from remaining tests to be checked for dependencies.
+     * 2. If the test has no dependencies: mark done, start again from the top
+     * 3. If the test has dependencies but none left to do: mark done, start again from the top
+     * 4. When we reach the end add any leftover tests to the end. These will be marked 'skipped' during execution.
+     *
+     * @param  array<TestCase>  $tests
+     * @return array<TestCase>
+     */
+    private function resolveDependencies(array $tests): array
+    {
+        // Pest: Fast-path. If no test in this suite declares dependencies, the
+        // original O(N^2) algorithm is wasted work — it would splice each test
+        // one-by-one back into the same order. The check deliberately walks
+        // TestCase instances directly instead of calling TestSuite::requires(),
+        // because the latter lazily builds TestSuite::provides() via
+        // ExecutionOrderDependency::mergeUnique, which is O(N^2) in the total
+        // number of tests. With thousands of tests that single call alone can
+        // burn several seconds before the sort even begins. Reading the
+        // cached TestCase::$dependencies property stays O(N) and costs nothing
+        // when no test uses `->depends()` / PHPUnit `@depends`.
+        if (! $this->anyTestHasDependencies($tests)) {
+            return $tests;
+        }
+
+        $newTestOrder = [];
+        $i = 0;
+        $provided = [];
+
+        do {
+            if (array_diff($tests[$i]->requires(), $provided) === []) {
+                $provided = array_merge($provided, $tests[$i]->provides());
+                $newTestOrder = array_merge($newTestOrder, array_splice($tests, $i, 1));
+                $i = 0;
+            } else {
+                $i++;
+            }
+        } while ($tests !== [] && ($i < count($tests)));
+
+        return array_merge($newTestOrder, $tests);
+    }
+
+    /**
+     * Cheaply determines whether any test in the tree declares @depends.
+     *
+     * Walks `TestSuite` containers recursively and inspects each `TestCase`
+     * directly so it never triggers `TestSuite::provides()`, which is O(N^2)
+     * in the total number of aggregated tests.
+     *
+     * @param  iterable<Test>  $tests
+     */
+    private function anyTestHasDependencies(iterable $tests): bool
+    {
+        foreach ($tests as $test) {
+            if ($test instanceof TestSuite) {
+                if ($this->anyTestHasDependencies($test->tests())) {
+                    return true;
+                }
+
+                continue;
+            }
+
+            if ($test instanceof TestCase && $test->requires() !== []) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+}

overrides/TextUI/Output/Default/ProgressPrinter/Subscriber/TestSkippedSubscriber.php

@@ -43,7 +43,7 @@ declare(strict_types=1);
  * file that was distributed with this source code.
  */
 
-namespace Pest\Logging\TeamCity\Subscriber;
+namespace PHPUnit\TextUI\Output\Default\ProgressPrinter;
 
 use PHPUnit\Event\Test\Skipped;
 use PHPUnit\Event\Test\SkippedSubscriber;
@@ -51,16 +51,20 @@ use ReflectionClass;
 
 /**
  * @internal This class is not covered by the backward compatibility promise for PHPUnit
+ *
+ * This file is overridden so PHPUnit's progress output emits a "T" before the
+ * regular "S" for "todo" tests — Pest's parallel result printer consumes the
+ * "T" and swallows the "S" that follows it.
  */
-final class TestSkippedSubscriber extends Subscriber implements SkippedSubscriber
+final readonly class TestSkippedSubscriber extends Subscriber implements SkippedSubscriber
 {
     public function notify(Skipped $event): void
     {
-        if (str_contains($event->message(), '__TODO__')) {
+        if ($event->message() === '__TODO__') {
             $this->printTodoItem();
         }
 
-        $this->logger()->testSkipped($event);
+        $this->printer()->testSkipped();
     }
 
     /**
@@ -69,7 +73,7 @@ final class TestSkippedSubscriber extends Subscriber implements SkippedSubscribe
     private function printTodoItem(): void
     {
         $mirror = new ReflectionClass($this->printer());
-        $printerMirror = $mirror->getMethod('printProgress');
-        $printerMirror->invoke($this->printer(), 'T');
+        $printProgress = $mirror->getMethod('printProgress');
+        $printProgress->invoke($this->printer(), 'T');
     }
 }

phpstan-baseline.neon

@@ -1,11 +1,5 @@
 parameters:
 	ignoreErrors:
-		-
-			message: '#^Parameter \#1 of callable callable\(Pest\\Expectation\<string\|null\>\)\: Pest\\Arch\\Contracts\\ArchExpectation expects Pest\\Expectation\<string\|null\>, Pest\\Expectation\<string\|null\> given\.$#'
-			identifier: argument.type
-			count: 1
-			path: src/ArchPresets/AbstractPreset.php
-
 		-
 			message: '#^Trait Pest\\Concerns\\Expectable is used zero times and is not analysed\.$#'
 			identifier: trait.unused
@@ -24,12 +18,6 @@ parameters:
 			count: 1
 			path: src/Concerns/Testable.php
 
-		-
-			message: '#^Loose comparison using \!\= between \(Closure\|null\) and false will always evaluate to false\.$#'
-			identifier: notEqual.alwaysFalse
-			count: 1
-			path: src/Expectation.php
-
 		-
 			message: '#^Method Pest\\Expectation\:\:and\(\) should return Pest\\Expectation\<TAndValue\> but returns \(Pest\\Expectation&TAndValue\)\|Pest\\Expectation\<TAndValue of mixed\>\.$#'
 			identifier: return.type
@@ -102,78 +90,12 @@ parameters:
 			count: 1
 			path: src/PendingCalls/TestCall.php
 
-		-
-			message: '#^Parameter \#1 \$argv of class Symfony\\Component\\Console\\Input\\ArgvInput constructor expects list\<string\>\|null, array\<int, string\> given\.$#'
-			identifier: argument.type
-			count: 1
-			path: src/Plugins/Parallel.php
-
-		-
-			message: '#^Parameter \#13 \$testRunnerTriggeredDeprecationEvents of class PHPUnit\\TestRunner\\TestResult\\TestResult constructor expects list\<PHPUnit\\Event\\TestRunner\\DeprecationTriggered\>, array given\.$#'
-			identifier: argument.type
-			count: 1
-			path: src/Plugins/Parallel/Paratest/WrapperRunner.php
-
-		-
-			message: '#^Parameter \#14 \$testRunnerTriggeredWarningEvents of class PHPUnit\\TestRunner\\TestResult\\TestResult constructor expects list\<PHPUnit\\Event\\TestRunner\\WarningTriggered\>, array given\.$#'
-			identifier: argument.type
-			count: 1
-			path: src/Plugins/Parallel/Paratest/WrapperRunner.php
-
-		-
-			message: '#^Parameter \#15 \$errors of class PHPUnit\\TestRunner\\TestResult\\TestResult constructor expects list\<PHPUnit\\TestRunner\\TestResult\\Issues\\Issue\>, array given\.$#'
-			identifier: argument.type
-			count: 1
-			path: src/Plugins/Parallel/Paratest/WrapperRunner.php
-
-		-
-			message: '#^Parameter \#16 \$deprecations of class PHPUnit\\TestRunner\\TestResult\\TestResult constructor expects list\<PHPUnit\\TestRunner\\TestResult\\Issues\\Issue\>, array given\.$#'
-			identifier: argument.type
-			count: 1
-			path: src/Plugins/Parallel/Paratest/WrapperRunner.php
-
-		-
-			message: '#^Parameter \#17 \$notices of class PHPUnit\\TestRunner\\TestResult\\TestResult constructor expects list\<PHPUnit\\TestRunner\\TestResult\\Issues\\Issue\>, array given\.$#'
-			identifier: argument.type
-			count: 1
-			path: src/Plugins/Parallel/Paratest/WrapperRunner.php
-
-		-
-			message: '#^Parameter \#18 \$warnings of class PHPUnit\\TestRunner\\TestResult\\TestResult constructor expects list\<PHPUnit\\TestRunner\\TestResult\\Issues\\Issue\>, array given\.$#'
-			identifier: argument.type
-			count: 1
-			path: src/Plugins/Parallel/Paratest/WrapperRunner.php
-
-		-
-			message: '#^Parameter \#19 \$phpDeprecations of class PHPUnit\\TestRunner\\TestResult\\TestResult constructor expects list\<PHPUnit\\TestRunner\\TestResult\\Issues\\Issue\>, array given\.$#'
-			identifier: argument.type
-			count: 1
-			path: src/Plugins/Parallel/Paratest/WrapperRunner.php
-
-		-
-			message: '#^Parameter \#20 \$phpNotices of class PHPUnit\\TestRunner\\TestResult\\TestResult constructor expects list\<PHPUnit\\TestRunner\\TestResult\\Issues\\Issue\>, array given\.$#'
-			identifier: argument.type
-			count: 1
-			path: src/Plugins/Parallel/Paratest/WrapperRunner.php
-
-		-
-			message: '#^Parameter \#21 \$phpWarnings of class PHPUnit\\TestRunner\\TestResult\\TestResult constructor expects list\<PHPUnit\\TestRunner\\TestResult\\Issues\\Issue\>, array given\.$#'
-			identifier: argument.type
-			count: 1
-			path: src/Plugins/Parallel/Paratest/WrapperRunner.php
-
 		-
 			message: '#^Parameter \#4 \$testErroredEvents of class PHPUnit\\TestRunner\\TestResult\\TestResult constructor expects list\<PHPUnit\\Event\\Test\\AfterLastTestMethodErrored\|PHPUnit\\Event\\Test\\BeforeFirstTestMethodErrored\|PHPUnit\\Event\\Test\\Errored\>, array given\.$#'
 			identifier: argument.type
 			count: 1
 			path: src/Plugins/Parallel/Paratest/WrapperRunner.php
 
-		-
-			message: '#^Parameter \#5 \$testFailedEvents of class PHPUnit\\TestRunner\\TestResult\\TestResult constructor expects list\<PHPUnit\\Event\\Test\\Failed\>, array given\.$#'
-			identifier: argument.type
-			count: 1
-			path: src/Plugins/Parallel/Paratest/WrapperRunner.php
-
 		-
 			message: '#^Parameter \#7 \$testSuiteSkippedEvents of class PHPUnit\\TestRunner\\TestResult\\TestResult constructor expects list\<PHPUnit\\Event\\TestSuite\\Skipped\>, array given\.$#'
 			identifier: argument.type

phpstan-pest-extension.neon

@@ -0,0 +1,5 @@
+services:
+    -
+        class: Pest\PHPStan\HigherOrderExpectationTypeExtension
+        tags:
+            - phpstan.broker.expressionTypeResolverExtension

phpstan.neon

@@ -1,5 +1,7 @@
 includes:
     - phpstan-baseline.neon
+    - phpstan-pest-extension.neon
+    - vendor/pestphp/pest-plugin-phpstan/extension.neon
 
 parameters:
     level: 7
@@ -7,6 +9,3 @@ parameters:
         - src
 
     reportUnmatchedIgnoredErrors: false
-
-    ignoreErrors:
-        - "#type mixed is not subtype of native#"

phpunit.xml

@@ -18,8 +18,9 @@
       <directory suffix=".php">./tests</directory>
       <directory suffix=".php">./tests-external</directory>
       <exclude>./tests/.snapshots</exclude>
-      <exclude>./tests/.tests</exclude>
       <exclude>./tests/Fixtures/Inheritance</exclude>
+      <exclude>./tests/Fixtures/Suites</exclude>
+      <exclude>./tests/Fixtures/Tia</exclude>
     </testsuite>
   </testsuites>
   <source>

pint.json

@@ -0,0 +1,5 @@
+{
+    "exclude": [
+        "tests/Fixtures/Suites"
+    ]
+}

rector.php

@@ -2,22 +2,61 @@
 
 declare(strict_types=1);
 
+use Pest\Rector\Rules\UseToMatchArrayRector;
+use Pest\Rector\Set\PestSetList;
 use Rector\CodingStyle\Rector\ArrowFunction\ArrowFunctionDelegatingCallToFirstClassCallableRector;
 use Rector\Config\RectorConfig;
+use Rector\DeadCode\Rector\ClassMethod\RemoveDuplicatedReturnSelfDocblockRector;
+use Rector\DeadCode\Rector\ClassMethod\RemoveEmptyClassMethodRector;
 use Rector\DeadCode\Rector\ClassMethod\RemoveParentDelegatingConstructorRector;
+use Rector\DeadCode\Rector\ClassMethod\RemoveReturnTagIncompatibleWithNativeTypeRector;
+use Rector\DeadCode\Rector\ClassMethod\RemoveUnusedConstructorParamRector;
+use Rector\DeadCode\Rector\ClassMethod\RemoveUselessUnionReturnDocblockRector;
+use Rector\DeadCode\Rector\Property\RemoveUnusedPrivatePropertyRector;
+use Rector\TypeDeclaration\Rector\ArrowFunction\AddArrowFunctionReturnTypeRector;
 use Rector\TypeDeclaration\Rector\ClassMethod\NarrowObjectReturnTypeRector;
 use Rector\TypeDeclaration\Rector\ClassMethod\ReturnNeverTypeRector;
 
 return RectorConfig::configure()
     ->withPaths([
         __DIR__.'/src',
+        __DIR__.'/tests',
+    ])
+    ->withSets([
+        PestSetList::CODING_STYLE,
     ])
     ->withSkip([
         __DIR__.'/src/Plugins/Parallel/Paratest/WrapperRunner.php',
+        __DIR__.'/tests/Fixtures/Arch',
+        __DIR__.'/tests/Fixtures/Suites',
         ReturnNeverTypeRector::class,
         ArrowFunctionDelegatingCallToFirstClassCallableRector::class,
         NarrowObjectReturnTypeRector::class,
         RemoveParentDelegatingConstructorRector::class,
+        RemoveDuplicatedReturnSelfDocblockRector::class,
+        RemoveUselessUnionReturnDocblockRector::class,
+        RemoveReturnTagIncompatibleWithNativeTypeRector::class => [
+            __DIR__.'/src/Expectations/HigherOrderExpectation.php',
+        ],
+        // Merges unrelated expectations into a single `toMatchArray()`, turning
+        // `toContain()` into exact matches, dropping `->not`, and mistaking a
+        // `toBeTrue()` failure message for an expected value. Unsafe here.
+        UseToMatchArrayRector::class,
+        // Test fixtures rely on "unused" constructors, params and properties
+        // (resolved via the container or read through reflection), so the
+        // dead-code and return-type rules below must not touch the test suite.
+        RemoveEmptyClassMethodRector::class => [
+            __DIR__.'/tests',
+        ],
+        RemoveUnusedConstructorParamRector::class => [
+            __DIR__.'/tests',
+        ],
+        RemoveUnusedPrivatePropertyRector::class => [
+            __DIR__.'/tests',
+        ],
+        AddArrowFunctionReturnTypeRector::class => [
+            __DIR__.'/tests',
+        ],
     ])
     ->withPreparedSets(
         deadCode: true,

resources/boost/skills/pest-testing/SKILL.blade.php

@@ -0,0 +1,196 @@
+---
+name: pest-testing
+description: "Use this skill for Pest PHP testing in Laravel projects only. Trigger whenever any test is being written, edited, fixed, or refactored — including fixing tests that broke after a code change, adding assertions, converting PHPUnit to Pest, adding datasets, and TDD workflows. Always activate when the user asks how to write something in Pest, mentions test files or directories (tests/Feature, tests/Unit, tests/Browser), or needs browser testing, smoke testing multiple pages for JS errors, architecture tests, or faster test runs with Test Impact Analysis. Covers: test()/it()/expect() syntax, datasets, mocking, browser testing (visit/click/fill), smoke testing, arch(), Livewire component tests, RefreshDatabase, Tia (--tia), sharding, and all Pest 5 features. Do not use for factories, seeders, migrations, controllers, models, or non-test PHP code."
+license: MIT
+metadata:
+  author: laravel
+---
+@php
+/** @var \Laravel\Boost\Install\GuidelineAssist $assist */
+@endphp
+# Pest Testing 5
+
+## Documentation
+
+Use `search-docs` for detailed Pest 5 patterns and documentation.
+
+## Basic Usage
+
+### Creating Tests
+
+All tests must be written using Pest. Use `{{ $assist->artisanCommand('make:test --pest {name}') }}`.
+
+The `{name}` argument should include only the path and test name, but should not include the test suite.
+- Incorrect: `{{ $assist->artisanCommand('make:test --pest Feature/SomeFeatureTest') }}` will generate `tests/Feature/Feature/SomeFeatureTest.php`
+- Correct: `{{ $assist->artisanCommand('make:test --pest SomeControllerTest') }}` will generate `tests/Feature/SomeControllerTest.php`
+- Incorrect: `{{ $assist->artisanCommand('make:test --pest --unit Unit/SomeServiceTest') }}` will generate `tests/Unit/Unit/SomeServiceTest.php`
+- Correct: `{{ $assist->artisanCommand('make:test --pest --unit SomeServiceTest') }}` will generate `tests/Unit/SomeServiceTest.php`
+
+### Test Organization
+
+- Unit/Feature tests: `tests/Feature` and `tests/Unit` directories.
+- Browser tests: `tests/Browser/` directory.
+- Do NOT remove tests without approval - these are core application code.
+
+### Basic Test Structure
+
+Pest supports both `test()` and `it()` functions. Before writing new tests, check existing test files in the same directory to match the project's convention. Use `test()` if existing tests use `test()`, or `it()` if they use `it()`.
+
+@boostsnippet("Basic Pest Test Example", "php")
+it('is true', function () {
+    expect(true)->toBeTrue();
+});
+@endboostsnippet
+
+### Running Tests
+
+- Run minimal tests with filter before finalizing: `{{ $assist->artisanCommand('test --compact --filter=testName') }}`.
+- Run all tests: `{{ $assist->artisanCommand('test --compact') }}`.
+- Run file: `{{ $assist->artisanCommand('test --compact tests/Feature/ExampleTest.php') }}`.
+- Run only tests affected by recent changes (Tia): `./vendor/bin/pest --parallel --tia`.
+
+## Assertions
+
+Use specific assertions (`assertSuccessful()`, `assertNotFound()`) instead of `assertStatus()`:
+
+@boostsnippet("Pest Response Assertion", "php")
+it('returns all', function () {
+    $this->postJson('/api/docs', [])->assertSuccessful();
+});
+@endboostsnippet
+
+| Use | Instead of |
+|-----|------------|
+| `assertSuccessful()` | `assertStatus(200)` |
+| `assertNotFound()` | `assertStatus(404)` |
+| `assertForbidden()` | `assertStatus(403)` |
+
+## Mocking
+
+Import mock function before use: `use function Pest\Laravel\mock;`
+
+## Datasets
+
+Use datasets for repetitive tests (validation rules, etc.):
+
+@boostsnippet("Pest Dataset Example", "php")
+it('has emails', function (string $email) {
+    expect($email)->not->toBeEmpty();
+})->with([
+    'james' => 'james@laravel.com',
+    'taylor' => 'taylor@laravel.com',
+]);
+@endboostsnippet
+
+## Pest 5 Features
+
+| Feature | Purpose |
+|---------|---------|
+| Tia (Test Impact Analysis) | Rerun only tests affected by recent changes |
+| Time-Balanced Sharding | Split tests across CI shards by execution time |
+| New Validation Expectations | `toBeEmail()`, `toBeUlid()`, `toBeIpAddress()`, and more |
+| Browser Testing | Full integration tests in real browsers |
+| Smoke Testing | Validate multiple pages quickly |
+| Visual Regression | Compare screenshots for visual changes |
+| Architecture Testing | Enforce code conventions |
+
+### Tia (Test Impact Analysis)
+
+Tia reruns only tests affected by recent changes and replays cached results for the rest, dramatically reducing suite duration:
+
+@boostsnippet("Tia Example", "shell")
+./vendor/bin/pest --parallel --tia
+@endboostsnippet
+
+- Replayed tests are not skipped — cached tests store everything they produced, including covered lines and branches.
+- Detects Laravel, Symfony, Livewire, and Inertia automatically.
+
+### New Validation Expectations
+
+Pest 5 ships eight new validation matchers, all supporting `.not` negation:
+
+@boostsnippet("Pest 5 Validation Expectations", "php")
+expect('nuno@pestphp.com')->toBeEmail();
+expect('01ARZ3NDEKTSV4RRFFQ69G5FAV')->toBeUlid();
+expect('192.168.1.1')->toBeIpAddress();
+expect('00:1a:2b:3c:4d:5e')->toBeMacAddress();
+expect('example.com')->toBeHostname();
+expect('example.co.uk')->toBeDomain();
+expect('Zm9vYmFy')->toBeBase64();
+expect('deadbeef')->toBeHexadecimal();
+@endboostsnippet
+
+### Time-Balanced Sharding
+
+Distribute tests across CI shards by execution time rather than count:
+
+@boostsnippet("Pest Sharding Example", "shell")
+./vendor/bin/pest --update-shards
+./vendor/bin/pest --shard=1/4
+@endboostsnippet
+
+Commit `tests/.pest/shards.json` to the repository so CI shards stay consistent.
+
+### Browser Test Example
+
+Browser tests run in real browsers for full integration testing:
+
+- Browser tests live in `tests/Browser/`.
+- Use Laravel features like `Event::fake()`, `assertAuthenticated()`, and model factories.
+- Use `RefreshDatabase` for clean state per test.
+- Interact with page: click, type, scroll, select, submit, drag-and-drop, touch gestures.
+- Test on multiple browsers (Chrome, Firefox, Safari) if requested.
+- Test on different devices/viewports (iPhone 14 Pro, tablets) if requested.
+- Switch color schemes (light/dark mode) when appropriate.
+- Take screenshots or pause tests for debugging.
+
+@boostsnippet("Pest Browser Test Example", "php")
+it('may reset the password', function () {
+    Notification::fake();
+
+    $this->actingAs(User::factory()->create());
+
+    $page = visit('/sign-in');
+
+    $page->assertSee('Sign In')
+        ->assertNoJavaScriptErrors()
+        ->click('Forgot Password?')
+        ->fill('email', 'nuno@laravel.com')
+        ->click('Send Reset Link')
+        ->assertSee('We have emailed your password reset link!');
+
+    Notification::assertSent(ResetPassword::class);
+});
+@endboostsnippet
+
+### Smoke Testing
+
+Quickly validate multiple pages have no JavaScript errors:
+
+@boostsnippet("Pest Smoke Testing Example", "php")
+$pages = visit(['/', '/about', '/contact']);
+
+$pages->assertNoJavaScriptErrors()->assertNoConsoleLogs();
+@endboostsnippet
+
+### Visual Regression Testing
+
+Capture and compare screenshots to detect visual changes.
+
+### Architecture Testing
+
+@boostsnippet("Architecture Test Example", "php")
+arch('controllers')
+    ->expect('App\Http\Controllers')
+    ->toExtendNothing()
+    ->toHaveSuffix('Controller');
+@endboostsnippet
+
+## Common Pitfalls
+
+- Not importing `use function Pest\Laravel\mock;` before using mock
+- Using `assertStatus(200)` instead of `assertSuccessful()`
+- Forgetting datasets for repetitive validation tests
+- Deleting tests without approval
+- Forgetting `assertNoJavaScriptErrors()` in browser tests
+- Prefixing `Feature/` or `Unit/` in `{name}` when using `make:test`

resources/views/components/badge.php

@@ -5,6 +5,8 @@
 [$bgBadgeColor, $bgBadgeText] = match ($type) {
     'INFO' => ['blue', 'INFO'],
     'ERROR' => ['red', 'ERROR'],
+    'WARN' => ['yellow', 'WARN'],
+    'SUCCESS' => ['green', 'SUCCESS'],
 };
 
 ?>

resources/views/installers/plugin-browser.php

@@ -7,7 +7,7 @@
 
     <div>
         <span class="text-gray mr-1">- </span>
-        <span>composer require pestphp/pest-plugin-browser:^4.0 --dev</span>
+        <span>composer require pestphp/pest-plugin-browser:^5.0 --dev</span>
     </div>
 
     <div>

src/ArchPresets/AbstractPreset.php

@@ -53,7 +53,7 @@ abstract class AbstractPreset // @pest-arch-ignore-line
     /**
      * Runs the given callback for each namespace.
      *
-     * @param  callable(Expectation<string|null>): ArchExpectation  ...$callbacks
+     * @param  callable(Expectation<string>): ArchExpectation  ...$callbacks
      */
     final public function eachUserNamespace(callable ...$callbacks): void
     {

src/ArchPresets/Laravel.php

@@ -69,6 +69,7 @@ final class Laravel extends AbstractPreset
             ->toHaveSuffix('Request');
 
         $this->expectations[] = expect('App\Http\Requests')
+            ->classes()
             ->toExtend('Illuminate\Foundation\Http\FormRequest');
 
         $this->expectations[] = expect('App\Http\Requests')
@@ -118,6 +119,7 @@ final class Laravel extends AbstractPreset
             ->toHaveMethod('handle');
 
         $this->expectations[] = expect('App\Notifications')
+            ->classes()
             ->toExtend('Illuminate\Notifications\Notification');
 
         $this->expectations[] = expect('App')
@@ -128,6 +130,7 @@ final class Laravel extends AbstractPreset
             ->toHaveSuffix('ServiceProvider');
 
         $this->expectations[] = expect('App\Providers')
+            ->classes()
             ->toExtend('Illuminate\Support\ServiceProvider');
 
         $this->expectations[] = expect('App\Providers')
@@ -150,7 +153,7 @@ final class Laravel extends AbstractPreset
             ->toHaveSuffix('Controller');
 
         $this->expectations[] = expect('App\Http')
-            ->toOnlyBeUsedIn('App\Http');
+            ->toOnlyBeUsedIn(['App\Http', 'App\Providers']);
 
         $this->expectations[] = expect('App\Http\Controllers')
             ->not->toHavePublicMethodsBesides(['__construct', '__invoke', 'index', 'show', 'create', 'store', 'edit', 'update', 'destroy', 'middleware']);

src/Bootstrappers/BootOverrides.php

@@ -18,9 +18,11 @@ final class BootOverrides implements Bootstrapper
      * @var array<int, string>
      */
     public const array FILES = [
+        'ParaTest/WrapperRunner/ProgressPrinterOutput.php',
         'Runner/Filter/NameFilterIterator.php',
         'Runner/ResultCache/DefaultResultCache.php',
         'Runner/TestSuiteLoader.php',
+        'Runner/TestSuiteSorter.php',
         'TextUI/Command/Commands/WarmCodeCoverageCacheCommand.php',
         'TextUI/Output/Default/ProgressPrinter/Subscriber/TestSkippedSubscriber.php',
         'TextUI/TestSuiteFilterProcessor.php',

src/Bootstrappers/BootPhpUnitConfiguration.php

@@ -0,0 +1,19 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest\Bootstrappers;
+
+use Pest\Contracts\Bootstrapper;
+use PHPUnit\TextUI\Configuration\Builder;
+
+/**
+ * @internal
+ */
+final class BootPhpUnitConfiguration implements Bootstrapper
+{
+    public function boot(): void
+    {
+        (new Builder)->build(['pest']);
+    }
+}

src/Bootstrappers/BootSubscribers.php

@@ -25,6 +25,23 @@ final readonly class BootSubscribers implements Bootstrapper
         Subscribers\EnsureIgnorableTestCasesAreIgnored::class,
         Subscribers\EnsureKernelDumpIsFlushed::class,
         Subscribers\EnsureTeamCityEnabled::class,
+        Subscribers\EnsureTiaIsRunningPestTestsOnly::class,
+        Subscribers\EnsureTiaStarts::class,
+        Subscribers\EnsureTiaEnds::class,
+        Subscribers\EnsureTiaResultsAreCollected::class,
+        Subscribers\EnsureTiaResultIsRecordedOnPassed::class,
+        Subscribers\EnsureTiaResultIsRecordedOnFailed::class,
+        Subscribers\EnsureTiaResultIsRecordedOnErrored::class,
+        Subscribers\EnsureTiaResultIsRecordedOnSkipped::class,
+        Subscribers\EnsureTiaResultIsRecordedOnIncomplete::class,
+        Subscribers\EnsureTiaResultIsRecordedOnRisky::class,
+        Subscribers\EnsureTiaResultIsRecordedOnNoticeTriggered::class,
+        Subscribers\EnsureTiaResultIsRecordedOnPhpNoticeTriggered::class,
+        Subscribers\EnsureTiaResultIsRecordedOnDeprecationTriggered::class,
+        Subscribers\EnsureTiaResultIsRecordedOnPhpDeprecationTriggered::class,
+        Subscribers\EnsureTiaResultIsRecordedOnWarningTriggered::class,
+        Subscribers\EnsureTiaResultIsRecordedOnPhpWarningTriggered::class,
+        Subscribers\EnsureTiaAssertionsAreRecordedOnFinished::class,
     ];
 
     /**

src/Concerns/Extendable.php

@@ -8,6 +8,8 @@ use Closure;
 
 /**
  * @internal
+ *
+ * @template T of object
  */
 trait Extendable
 {
@@ -20,6 +22,8 @@ trait Extendable
 
     /**
      * Register a new extend.
+     *
+     * @param-closure-this T $extend
      */
     public function extend(string $name, Closure $extend): void
     {

src/Concerns/Pipeable.php

@@ -66,6 +66,6 @@ trait Pipeable
      */
     private function pipes(string $name, object $context, string $scope): array
     {
-        return array_map(fn (Closure $pipe): \Closure => $pipe->bindTo($context, $scope), self::$pipes[$name] ?? []);
+        return array_map(fn (Closure $pipe): Closure => $pipe->bindTo($context, $scope), self::$pipes[$name] ?? []);
     }
 }

src/Concerns/Testable.php

@@ -7,14 +7,24 @@ namespace Pest\Concerns;
 use Closure;
 use Pest\Exceptions\DatasetArgumentsMismatch;
 use Pest\Panic;
+use Pest\Plugins\Tia;
+use Pest\Plugins\Tia\Collectors;
+use Pest\Plugins\Tia\Enums\ReplayType;
+use Pest\Plugins\Tia\Recorder;
 use Pest\Preset;
 use Pest\Support\ChainableClosure;
+use Pest\Support\Container;
 use Pest\Support\ExceptionTrace;
 use Pest\Support\Reflection;
 use Pest\Support\Shell;
 use Pest\TestSuite;
+use PHPUnit\Framework\AssertionFailedError;
 use PHPUnit\Framework\Attributes\PostCondition;
+use PHPUnit\Framework\IncompleteTest;
+use PHPUnit\Framework\SkippedTest;
 use PHPUnit\Framework\TestCase;
+use PHPUnit\Framework\TestCase\ExceptionExpectation;
+use PHPUnit\Framework\TestCase\OutputBuffer;
 use ReflectionException;
 use ReflectionFunction;
 use ReflectionParameter;
@@ -73,6 +83,17 @@ trait Testable
      */
     public bool $__ran = false;
 
+    /**
+     * The active replay mode for this test, set in `setUp()` and checked
+     * in `__runTest()` / `tearDown()` to skip the body and after-each.
+     */
+    private ReplayType $__replay = ReplayType::None;
+
+    /**
+     * The cached assertion count to replay, captured when entering replay mode.
+     */
+    private int $__replayAssertions = 0;
+
     /**
      * The test's test closure.
      */
@@ -129,7 +150,7 @@ trait Testable
      */
     public function __addBeforeAll(?Closure $hook): void
     {
-        if (! $hook instanceof \Closure) {
+        if (! $hook instanceof Closure) {
             return;
         }
 
@@ -143,7 +164,7 @@ trait Testable
      */
     public function __addAfterAll(?Closure $hook): void
     {
-        if (! $hook instanceof \Closure) {
+        if (! $hook instanceof Closure) {
             return;
         }
 
@@ -173,7 +194,7 @@ trait Testable
      */
     private function __addHook(string $property, ?Closure $hook): void
     {
-        if (! $hook instanceof \Closure) {
+        if (! $hook instanceof Closure) {
             return;
         }
 
@@ -257,8 +278,37 @@ trait Testable
         self::$__latestIssues = $method->issues;
         self::$__latestPrs = $method->prs;
 
+        /** @var Tia $tia */
+        $tia = Container::getInstance()->get(Tia::class);
+        $status = $tia->getStatus(self::$__filename, $this->valueObjectForEvents()->id());
+        $replay = ReplayType::fromStatus($status);
+
+        if ($replay !== ReplayType::None) {
+            assert($status !== null);
+
+            $this->__replay = $replay;
+
+            match ($replay) {
+                ReplayType::Pass, ReplayType::Risky => $this->__beginReplay($replay, $tia),
+                ReplayType::Skipped => $this->markTestSkipped($status->message()),
+                ReplayType::Incomplete => $this->markTestIncomplete($status->message()),
+                ReplayType::Failure => throw new AssertionFailedError($status->message() ?: 'Cached failure'),
+            };
+
+            return;
+        }
+
+        $recorder = Container::getInstance()->get(Recorder::class);
+        assert($recorder instanceof Recorder);
+
+        if ($recorder->isActive()) {
+            $recorder->beginTest($this::class, $this->name(), self::$__filename);
+        }
+
         parent::setUp();
 
+        Collectors::armAll($recorder);
+
         $beforeEach = TestSuite::getInstance()->beforeEach->get(self::$__filename)[1];
 
         if ($this->__beforeEach instanceof Closure) {
@@ -268,6 +318,13 @@ trait Testable
         $this->__callClosure($beforeEach, $arguments);
     }
 
+    private function __beginReplay(ReplayType $replay, Tia $tia): void
+    {
+        $this->__replay = $replay;
+        $this->__replayAssertions = $tia->getAssertionCount($this->valueObjectForEvents()->id());
+        $this->__ran = true;
+    }
+
     /**
      * Initialize test case properties from TestSuite.
      */
@@ -300,6 +357,12 @@ trait Testable
      */
     protected function tearDown(...$arguments): void
     {
+        if ($this->__replay !== ReplayType::None) {
+            TestSuite::getInstance()->test = null;
+
+            return;
+        }
+
         $afterEach = TestSuite::getInstance()->afterEach->get(self::$__filename);
 
         if ($this->__afterEach instanceof Closure) {
@@ -325,10 +388,106 @@ trait Testable
      */
     private function __runTest(Closure $closure, ...$args): mixed
     {
+        if ($this->__replay === ReplayType::Pass || $this->__replay === ReplayType::Risky) {
+            if ($this->__replay === ReplayType::Pass && $this->__replayAssertions === 0) {
+                $this->expectNotToPerformAssertions();
+            }
+
+            $this->addToAssertionCount($this->__replayAssertions);
+
+            return null;
+        }
+
         $arguments = $this->__resolveTestArguments($args);
         $this->__ensureDatasetArgumentNameAndNumberMatches($arguments);
 
-        return $this->__callClosure($closure, $arguments);
+        $method = TestSuite::getInstance()->tests->get(self::$__filename)->getMethod($this->name());
+
+        if ($method->flakyTries === null) {
+            return $this->__callClosure($closure, $arguments);
+        }
+
+        $lastException = null;
+        $initialProperties = get_object_vars($this);
+
+        for ($attempt = 1; $attempt <= $method->flakyTries; $attempt++) {
+            try {
+                return $this->__callClosure($closure, $arguments);
+            } catch (Throwable $e) {
+                if ($e instanceof SkippedTest
+                    || $e instanceof IncompleteTest
+                    || $this->__isExpectedException($e)) {
+                    throw $e;
+                }
+
+                $lastException = $e;
+
+                if ($attempt < $method->flakyTries) {
+                    if ($this->__snapshotChanges !== []) {
+                        throw $e;
+                    }
+
+                    $this->tearDown();
+
+                    Closure::bind(fn (): array => $this->mockObjects = [], $this, TestCase::class)();
+
+                    foreach (array_keys(array_diff_key(get_object_vars($this), $initialProperties)) as $property) {
+                        unset($this->{$property});
+                    }
+
+                    $outputBuffer = Closure::bind(fn () => $this->outputBuffer, $this, TestCase::class)();
+
+                    if ($outputBuffer->hasExpectation()) {
+                        ob_clean();
+
+                        Closure::bind(function (): void {
+                            $this->expectedString = null;
+                            $this->expectedRegularExpression = null;
+                        }, $outputBuffer, OutputBuffer::class)();
+                    }
+
+                    $this->setUp();
+                }
+            }
+        }
+
+        throw $lastException;
+    }
+
+    /**
+     * Determines if the given exception matches PHPUnit's expected exception.
+     */
+    private function __isExpectedException(Throwable $e): bool
+    {
+        $expectation = Closure::bind(fn () => $this->exceptionExpectation, $this, TestCase::class)();
+
+        $read = fn (string $property): mixed => Closure::bind(fn () => $this->{$property}, $expectation, ExceptionExpectation::class)();
+
+        $expectedClass = $read('expectedException');
+
+        if ($expectedClass !== null) {
+            return $e instanceof $expectedClass;
+        }
+
+        $expectedMessage = $read('expectedMessage');
+
+        if ($expectedMessage !== null) {
+            return str_contains($e->getMessage(), (string) $expectedMessage);
+        }
+
+        $expectedMessageRegex = $read('expectedMessageRegularExpression');
+
+        if ($expectedMessageRegex !== null) {
+            return preg_match($expectedMessageRegex, $e->getMessage()) === 1;
+        }
+
+        $expectedCode = $read('expectedCode');
+
+        if ($expectedCode !== null) {
+            return $e->getCode() === $expectedCode;
+        }
+
+        return false;
     }
 
     /**
@@ -350,7 +509,8 @@ trait Testable
         }
 
         $underlyingTest = Reflection::getFunctionVariable($this->__test, 'closure');
-        $testParameterTypes = array_values(Reflection::getFunctionArguments($underlyingTest));
+        $testParameterTypesByName = Reflection::getFunctionArguments($underlyingTest);
+        $testParameterTypes = array_values($testParameterTypesByName);
 
         if (count($arguments) !== 1) {
             foreach ($arguments as $argumentIndex => $argumentValue) {
@@ -358,7 +518,11 @@ trait Testable
                     continue;
                 }
 
-                if (in_array($testParameterTypes[$argumentIndex], [Closure::class, 'callable', 'mixed'])) {
+                $parameterType = is_string($argumentIndex)
+                    ? $testParameterTypesByName[$argumentIndex]
+                    : $testParameterTypes[$argumentIndex];
+
+                if (in_array($parameterType, [Closure::class, 'callable', 'mixed'])) {
                     continue;
                 }
 
@@ -384,7 +548,7 @@ trait Testable
             return [$boundDatasetResult];
         }
 
-        return array_values($boundDatasetResult);
+        return $boundDatasetResult;
     }
 
     /**

src/Configuration.php

@@ -33,7 +33,7 @@ final readonly class Configuration
      */
     public function in(string ...$targets): UsesCall
     {
-        return (new UsesCall($this->filename, []))->in(...$targets);
+        return new UsesCall($this->filename, [])->in(...$targets);
     }
 
     /**
@@ -60,7 +60,7 @@ final readonly class Configuration
      */
     public function group(string ...$groups): UsesCall
     {
-        return (new UsesCall($this->filename, []))->group(...$groups);
+        return new UsesCall($this->filename, [])->group(...$groups);
     }
 
     /**
@@ -68,7 +68,7 @@ final readonly class Configuration
      */
     public function only(): void
     {
-        (new BeforeEachCall(TestSuite::getInstance(), $this->filename))->only();
+        new BeforeEachCall(TestSuite::getInstance(), $this->filename)->only();
     }
 
     /**
@@ -119,6 +119,22 @@ final readonly class Configuration
         return new Browser\Configuration;
     }
 
+    /**
+     * Gets the evals configuration.
+     */
+    public function evals(): Evals\Configuration // @phpstan-ignore-line
+    {
+        return new Evals\Configuration; // @phpstan-ignore-line
+    }
+
+    /**
+     * Gets the TIA (Test Impact Analysis) configuration.
+     */
+    public function tia(): Plugins\Tia\Configuration
+    {
+        return new Plugins\Tia\Configuration;
+    }
+
     /**
      * Proxies calls to the uses method.
      *

src/Configuration/Project.php

@@ -59,12 +59,15 @@ final class Project
     /**
      * Sets the test project to GitLab.
      */
-    public function gitlab(string $project): self
+    public function gitlab(string $project, string $hostname = 'gitlab.com'): self
     {
-        $this->issues = "https://gitlab.com/{$project}/issues/%s";
-        $this->prs = "https://gitlab.com/{$project}/merge_requests/%s";
+        // Simple way to ensure only the host is used
+        $hostname = parse_url($hostname, PHP_URL_HOST) ?? $hostname;
 
-        $this->assignees = 'https://gitlab.com/%s';
+        $this->issues = "https://{$hostname}/{$project}/-/work_items/%s";
+        $this->prs = "https://{$hostname}/{$project}/-/merge_requests/%s";
+
+        $this->assignees = "https://{$hostname}/%s";
 
         return $this;
     }

src/Contracts/Restarter.php

@@ -0,0 +1,16 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest\Contracts;
+
+/**
+ * @internal
+ */
+interface Restarter
+{
+    /**
+     * @param  array<int, string>  $arguments
+     */
+    public function maybeRestart(string $projectRoot, array $arguments): void;
+}

src/Exceptions/AfterAllAlreadyExist.php

@@ -19,6 +19,6 @@ final class AfterAllAlreadyExist extends InvalidArgumentException implements Exc
      */
     public function __construct(string $filename)
     {
-        parent::__construct(sprintf('The afterAll already exists in the filename `%s`.', $filename));
+        parent::__construct(sprintf('The afterAll already exists in the filename [%s].', $filename));
     }
 }

src/Exceptions/AfterAllWithinDescribe.php

@@ -19,6 +19,6 @@ final class AfterAllWithinDescribe extends InvalidArgumentException implements E
      */
     public function __construct(string $filename)
     {
-        parent::__construct(sprintf('The afterAll method can not be used within describe functions. Filename `%s`.', $filename));
+        parent::__construct(sprintf('The afterAll method can not be used within describe functions. Filename [%s].', $filename));
     }
 }

src/Exceptions/AfterBeforeTestFunction.php

@@ -19,6 +19,6 @@ final class AfterBeforeTestFunction extends InvalidArgumentException implements
      */
     public function __construct(string $filename)
     {
-        parent::__construct('After method cannot be used with before the [test|it] functions in the filename `['.$filename.']`.');
+        parent::__construct('After method cannot be used with before the [test|it] functions in the filename ['.$filename.'].');
     }
 }

src/Exceptions/BaselineFetchFailed.php

@@ -0,0 +1,54 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest\Exceptions;
+
+use NunoMaduro\Collision\Contracts\RenderlessEditor;
+use NunoMaduro\Collision\Contracts\RenderlessTrace;
+use Pest\Contracts\Panicable;
+use Pest\Support\View;
+use RuntimeException;
+use Symfony\Component\Console\Exception\ExceptionInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+
+/**
+ * @internal
+ */
+final class BaselineFetchFailed extends RuntimeException implements ExceptionInterface, Panicable, RenderlessEditor, RenderlessTrace
+{
+    public function __construct(
+        private readonly string $headline,
+        private readonly string $hint,
+        private readonly bool $hasAnchor = false,
+    ) {
+        parent::__construct($headline);
+    }
+
+    public function render(OutputInterface $output): void
+    {
+        View::renderUsing($output);
+
+        if (! $this->hasAnchor) {
+            View::render('components.badge', ['type' => 'ERROR', 'content' => $this->headline]);
+            $this->renderChild($output, $this->hint.' Or use [--fresh] to record locally.');
+            $output->writeln('');
+
+            return;
+        }
+
+        $this->renderChild($output, $this->headline);
+        $this->renderChild($output, $this->hint.' Or use [--fresh] to record locally.');
+        $output->writeln('');
+    }
+
+    public function exitCode(): int
+    {
+        return 1;
+    }
+
+    private function renderChild(OutputInterface $output, string $text): void
+    {
+        $output->writeln(sprintf('  <fg=gray>─ %s</>', $text));
+    }
+}

src/Exceptions/BeforeAllAlreadyExist.php

@@ -19,6 +19,6 @@ final class BeforeAllAlreadyExist extends InvalidArgumentException implements Ex
      */
     public function __construct(string $filename)
     {
-        parent::__construct(sprintf('The beforeAll already exists in the filename `%s`.', $filename));
+        parent::__construct(sprintf('The beforeAll already exists in the filename [%s].', $filename));
     }
 }

src/Exceptions/BeforeAllWithinDescribe.php

@@ -19,6 +19,6 @@ final class BeforeAllWithinDescribe extends InvalidArgumentException implements
      */
     public function __construct(string $filename)
     {
-        parent::__construct(sprintf('The beforeAll method can not be used within describe functions. Filename `%s`.', $filename));
+        parent::__construct(sprintf('The beforeAll method can not be used within describe functions. Filename [%s].', $filename));
     }
 }

src/Exceptions/DatasetAlreadyExists.php

@@ -19,6 +19,6 @@ final class DatasetAlreadyExists extends InvalidArgumentException implements Exc
      */
     public function __construct(string $name, string $scope)
     {
-        parent::__construct(sprintf('A dataset with the name `%s` already exists in scope [%s].', $name, $scope));
+        parent::__construct(sprintf('A dataset with the name [%s] already exists in scope [%s].', $name, $scope));
     }
 }

src/Exceptions/DatasetDoesNotExist.php

@@ -19,6 +19,6 @@ final class DatasetDoesNotExist extends InvalidArgumentException implements Exce
      */
     public function __construct(string $name)
     {
-        parent::__construct(sprintf("A dataset with the name `%s` does not exist. You can create it using `dataset('%s', ['a', 'b']);`.", $name, $name));
+        parent::__construct(sprintf("A dataset with the name [%s] does not exist. You can create it using `dataset('%s', ['a', 'b']);`.", $name, $name));
     }
 }

src/Exceptions/DatasetProviderError.php

@@ -0,0 +1,19 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest\Exceptions;
+
+use RuntimeException;
+use Throwable;
+
+/**
+ * @internal
+ */
+final class DatasetProviderError extends RuntimeException
+{
+    public function __construct(Throwable $previous)
+    {
+        parent::__construct($previous->getMessage(), (int) $previous->getCode(), $previous);
+    }
+}

src/Exceptions/FileOrFolderNotFound.php

@@ -19,6 +19,6 @@ final class FileOrFolderNotFound extends InvalidArgumentException implements Exc
      */
     public function __construct(string $filename)
     {
-        parent::__construct(sprintf('The file or folder with the name `%s` could not be found.', $filename));
+        parent::__construct(sprintf('The file or folder with the name [%s] could not be found.', $filename));
     }
 }

src/Exceptions/InvalidTestClassName.php

@@ -0,0 +1,41 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest\Exceptions;
+
+use InvalidArgumentException;
+use NunoMaduro\Collision\Contracts\RenderlessEditor;
+use NunoMaduro\Collision\Contracts\RenderlessTrace;
+use Symfony\Component\Console\Exception\ExceptionInterface;
+
+/**
+ * @internal
+ */
+final class InvalidTestClassName extends InvalidArgumentException implements ExceptionInterface, RenderlessEditor, RenderlessTrace
+{
+    /**
+     * Creates a new Exception instance for the given class name.
+     */
+    public static function fromClassName(string $filename, string $className): self
+    {
+        return new self(sprintf(
+            'The test file [%s] would create the class [%s], which is not a valid PHP class name. Please rename the test file.',
+            $filename,
+            $className,
+        ));
+    }
+
+    /**
+     * Creates a new Exception instance for the given namespace.
+     */
+    public static function fromNamespace(string $filename, string $namespace, string $part): self
+    {
+        return new self(sprintf(
+            'The test file [%s] would create the namespace [%s], which is not a valid PHP namespace, as [%s] may not be used as a namespace name. Please rename the folder in question.',
+            $filename,
+            $namespace,
+            $part,
+        ));
+    }
+}

src/Exceptions/NoAffectedTestsFound.php

@@ -0,0 +1,32 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest\Exceptions;
+
+use InvalidArgumentException;
+use NunoMaduro\Collision\Contracts\RenderlessEditor;
+use NunoMaduro\Collision\Contracts\RenderlessTrace;
+use Pest\Contracts\Panicable;
+use Symfony\Component\Console\Exception\ExceptionInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+
+/**
+ * @internal
+ */
+final class NoAffectedTestsFound extends InvalidArgumentException implements ExceptionInterface, Panicable, RenderlessEditor, RenderlessTrace
+{
+    public function render(OutputInterface $output): void
+    {
+        $output->writeln([
+            '',
+            '  <fg=white;options=bold;bg=blue> INFO </> No affected tests found.',
+            '',
+        ]);
+    }
+
+    public function exitCode(): int
+    {
+        return 0;
+    }
+}

src/Exceptions/TestAlreadyExist.php

@@ -19,6 +19,6 @@ final class TestAlreadyExist extends InvalidArgumentException implements Excepti
      */
     public function __construct(string $fileName, string $description)
     {
-        parent::__construct(sprintf('A test with the description `%s` already exists in the filename `%s`.', $description, $fileName));
+        parent::__construct(sprintf('A test with the description [%s] already exists in the filename [%s].', $description, $fileName));
     }
 }

src/Exceptions/TestCaseClassOrTraitNotFound.php

@@ -19,6 +19,6 @@ final class TestCaseClassOrTraitNotFound extends InvalidArgumentException implem
      */
     public function __construct(string $testCaseClass)
     {
-        parent::__construct(sprintf('The class `%s` was not found.', $testCaseClass));
+        parent::__construct(sprintf('The class [%s] was not found.', $testCaseClass));
     }
 }

src/Exceptions/TestDescriptionMissing.php

@@ -19,6 +19,6 @@ final class TestDescriptionMissing extends InvalidArgumentException implements E
      */
     public function __construct(string $fileName)
     {
-        parent::__construct(sprintf('Test description is missing in the filename `%s`.', $fileName));
+        parent::__construct(sprintf('Test description is missing in the filename [%s].', $fileName));
     }
 }

src/Exceptions/TiaRequiresDefaultBranch.php

@@ -0,0 +1,52 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest\Exceptions;
+
+use NunoMaduro\Collision\Contracts\RenderlessEditor;
+use NunoMaduro\Collision\Contracts\RenderlessTrace;
+use Pest\Contracts\Panicable;
+use RuntimeException;
+use Symfony\Component\Console\Exception\ExceptionInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+
+/**
+ * @internal
+ */
+final class TiaRequiresDefaultBranch extends RuntimeException implements ExceptionInterface, Panicable, RenderlessEditor, RenderlessTrace
+{
+    public function __construct()
+    {
+        parent::__construct(
+            'Tia mode could not determine the default branch every other branch falls back to reading.',
+        );
+    }
+
+    public function render(OutputInterface $output): void
+    {
+        $output->writeln([
+            '',
+            '  <fg=white;options=bold;bg=red> ERROR </> Tia mode could not determine the default branch.',
+            '',
+            '  It is the branch whose baseline every other branch falls back to reading, and',
+            '  nothing in this checkout names it: the repository has a remote, but no',
+            '  <fg=yellow>origin/HEAD</>, and no CI provider stated it either. Guessing would re-run the',
+            '  whole suite on every new branch while reporting it as a cache hit.',
+            '',
+            '  Name the branch in <fg=yellow>tests/Pest.php</>:',
+            '',
+            '    <fg=yellow>pest()->tia()->defaultBranch(\'master\');</>',
+            '',
+            '  Or let git answer, once per clone:',
+            '',
+            '    <fg=yellow>git remote set-head origin --auto</>',
+            '',
+        ]);
+    }
+
+    public function exitCode(): int
+    {
+        return 1;
+    }
+}

src/Exceptions/TiaRequiresPestTests.php

@@ -0,0 +1,46 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest\Exceptions;
+
+use NunoMaduro\Collision\Contracts\RenderlessEditor;
+use NunoMaduro\Collision\Contracts\RenderlessTrace;
+use Pest\Contracts\Panicable;
+use RuntimeException;
+use Symfony\Component\Console\Exception\ExceptionInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+
+/**
+ * @internal
+ */
+final class TiaRequiresPestTests extends RuntimeException implements ExceptionInterface, Panicable, RenderlessEditor, RenderlessTrace
+{
+    public function __construct(private readonly string $className, string $filename)
+    {
+        parent::__construct(sprintf(
+            'Tia mode requires only functional based Pest tests, but encountered PHPUnit class [%s] in [%s].',
+            $className,
+            $filename,
+        ));
+    }
+
+    public function render(OutputInterface $output): void
+    {
+        $output->writeln([
+            '',
+            '  <fg=white;options=bold;bg=red> ERROR </> Tia mode requires Pest tests.',
+            '',
+            sprintf('  Encountered PHPUnit class <fg=yellow>%s</>', $this->className),
+            sprintf('  in <fg=gray>%s</>.', $this->file),
+            '',
+            '  Convert it to a Pest test, or run without Tia.',
+            '',
+        ]);
+    }
+
+    public function exitCode(): int
+    {
+        return 1;
+    }
+}

src/Exceptions/TiaRequiresRemote.php

@@ -0,0 +1,47 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest\Exceptions;
+
+use NunoMaduro\Collision\Contracts\RenderlessEditor;
+use NunoMaduro\Collision\Contracts\RenderlessTrace;
+use Pest\Contracts\Panicable;
+use RuntimeException;
+use Symfony\Component\Console\Exception\ExceptionInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+
+/**
+ * @internal
+ */
+final class TiaRequiresRemote extends RuntimeException implements ExceptionInterface, Panicable, RenderlessEditor, RenderlessTrace
+{
+    public function __construct()
+    {
+        parent::__construct(
+            'Tia mode requires a repository with a remote, so the default branch every other branch falls back to reading can be resolved.',
+        );
+    }
+
+    public function render(OutputInterface $output): void
+    {
+        $output->writeln([
+            '',
+            '  <fg=white;options=bold;bg=red> ERROR </> Tia mode requires a repository with a remote.',
+            '',
+            '  Without one there is no way to tell which branch is the default — the branch',
+            '  whose baseline every other branch falls back to reading — so the first run on',
+            '  each new branch would silently re-run the whole suite.',
+            '',
+            '  Add a remote, or name the branch yourself in <fg=yellow>tests/Pest.php</>:',
+            '',
+            '    <fg=yellow>pest()->tia()->defaultBranch(\'master\');</>',
+            '',
+        ]);
+    }
+
+    public function exitCode(): int
+    {
+        return 1;
+    }
+}

src/Exceptions/TiaRequiresRepositoryRoot.php

@@ -0,0 +1,44 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest\Exceptions;
+
+use NunoMaduro\Collision\Contracts\RenderlessEditor;
+use NunoMaduro\Collision\Contracts\RenderlessTrace;
+use Pest\Contracts\Panicable;
+use RuntimeException;
+use Symfony\Component\Console\Exception\ExceptionInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+
+/**
+ * @internal
+ */
+final class TiaRequiresRepositoryRoot extends RuntimeException implements ExceptionInterface, Panicable, RenderlessEditor, RenderlessTrace
+{
+    public function __construct(private readonly string $subdirectoryPrefix)
+    {
+        parent::__construct(sprintf(
+            'Tia mode requires the project root to be the git repository root, but it sits in the subdirectory [%s] of a larger repo.',
+            $this->subdirectoryPrefix,
+        ));
+    }
+
+    public function render(OutputInterface $output): void
+    {
+        $output->writeln([
+            '',
+            '  <fg=white;options=bold;bg=red> ERROR </> Tia mode requires the git repository root.',
+            '',
+            sprintf('  This project sits in a subdirectory of a larger repo <fg=yellow>%s</>.', $this->subdirectoryPrefix),
+            '',
+            '  Give the project its own git repository to use Tia.',
+            '',
+        ]);
+    }
+
+    public function exitCode(): int
+    {
+        return 1;
+    }
+}

src/Expectation.php

@@ -18,6 +18,7 @@ use Pest\Arch\Expectations\ToOnlyUse;
 use Pest\Arch\Expectations\ToUse;
 use Pest\Arch\Expectations\ToUseNothing;
 use Pest\Arch\PendingArchExpectation;
+use Pest\Arch\Support\Composer;
 use Pest\Arch\Support\FileLineFinder;
 use Pest\Concerns\Extendable;
 use Pest\Concerns\Pipeable;
@@ -52,7 +53,9 @@ use ReflectionProperty;
  */
 final class Expectation
 {
+    /** @use Extendable<self<TValue>> */
     use Extendable;
+
     use Pipeable;
     use Retrievable;
 
@@ -109,7 +112,7 @@ final class Expectation
         if (function_exists('dump')) {
             dump($this->value, ...$arguments);
         } else {
-            var_dump($this->value);
+            var_dump($this->value, ...$arguments);
         }
 
         return $this;
@@ -117,16 +120,22 @@ final class Expectation
 
     /**
      * Dump the expectation value and end the script.
-     *
-     * @return never
      */
-    public function dd(mixed ...$arguments): void
+    public function dd(mixed ...$arguments): never
     {
         if (function_exists('dd')) {
             dd($this->value, ...$arguments);
         }
 
-        var_dump($this->value);
+        if (getenv('PARATEST') !== false || isset($_SERVER['COLLISION_PRINTER'])) {
+            ob_start();
+            var_dump($this->value, ...$arguments);
+            $output = ob_get_clean();
+
+            throw new ExpectationFailedException($output);
+        }
+
+        var_dump($this->value, ...$arguments);
 
         exit(1);
     }
@@ -134,7 +143,7 @@ final class Expectation
     /**
      * Dump the expectation value when the result of the condition is truthy.
      *
-     * @param  (\Closure(TValue): bool)|bool  $condition
+     * @param  (Closure(TValue): bool)|bool  $condition
      * @return self<TValue>
      */
     public function ddWhen(Closure|bool $condition, mixed ...$arguments): Expectation
@@ -151,7 +160,7 @@ final class Expectation
     /**
      * Dump the expectation value when the result of the condition is falsy.
      *
-     * @param  (\Closure(TValue): bool)|bool  $condition
+     * @param  (Closure(TValue): bool)|bool  $condition
      * @return self<TValue>
      */
     public function ddUnless(Closure|bool $condition, mixed ...$arguments): Expectation
@@ -235,7 +244,7 @@ final class Expectation
             if ($callbacks[$index] instanceof Closure) {
                 $callbacks[$index](new self($value), new self($key));
             } else {
-                (new self($value))->toEqual($callbacks[$index]);
+                new self($value)->toEqual($callbacks[$index]);
             }
 
             $index = isset($callbacks[$index + 1]) ? $index + 1 : 0;
@@ -667,6 +676,41 @@ final class Expectation
         throw InvalidExpectation::fromMethods(['toHavePrivateMethods']);
     }
 
+    /**
+     * Asserts that the given expectation target is cased correctly.
+     */
+    public function toBeCasedCorrectly(): ArchExpectation
+    {
+        return Targeted::make(
+            $this,
+            function (ObjectDescription $object): bool {
+                if (! isset($object->reflectionClass)) {
+                    return false;
+                }
+
+                $realPath = realpath($object->path);
+
+                if ($realPath === false) {
+                    return false;
+                }
+
+                foreach (Composer::allNamespacesWithDirectories() as $directory => $namespace) {
+                    if (str_starts_with($realPath, $directory)) {
+                        $relativePath = substr($realPath, strlen($directory) + 1);
+                        $relativePath = explode('.', $relativePath)[0];
+                        $classFromPath = $namespace.'\\'.str_replace(DIRECTORY_SEPARATOR, '\\', $relativePath);
+
+                        return $classFromPath === $object->reflectionClass->getName();
+                    }
+                }
+
+                return false;
+            },
+            'to be cased correctly',
+            FileLineFinder::where(fn (string $line): bool => str_contains($line, 'class')),
+        );
+    }
+
     /**
      * Asserts that the given expectation target is enum.
      */
@@ -781,7 +825,22 @@ final class Expectation
                         return false;
                     }
 
-                    if (! in_array($trait, $object->reflectionClass->getTraitNames(), true)) {
+                    $currentClass = $object->reflectionClass;
+                    $usedTraits = [];
+
+                    do {
+                        $classTraits = $currentClass->getTraits();
+                        foreach ($classTraits as $traitReflection) {
+                            $usedTraits[$traitReflection->getName()] = $traitReflection->getName();
+
+                            $nestedTraits = $traitReflection->getTraits();
+                            foreach ($nestedTraits as $nestedTrait) {
+                                $usedTraits[$nestedTrait->getName()] = $nestedTrait->getName();
+                            }
+                        }
+                    } while ($currentClass = $currentClass->getParentClass());
+
+                    if (! array_key_exists($trait, $usedTraits)) {
                         return false;
                     }
                 }
@@ -862,15 +921,7 @@ final class Expectation
 
         return Targeted::make(
             $this,
-            function (ObjectDescription $object) use ($interfaces): bool {
-                foreach ($interfaces as $interface) {
-                    if (! isset($object->reflectionClass) || ! $object->reflectionClass->implementsInterface($interface)) {
-                        return false;
-                    }
-                }
-
-                return true;
-            },
+            fn (ObjectDescription $object): bool => array_all($interfaces, fn (string $interface): bool => isset($object->reflectionClass) && $object->reflectionClass->implementsInterface($interface)),
             "to implement '".implode("', '", $interfaces)."'",
             FileLineFinder::where(fn (string $line): bool => str_contains($line, 'class')),
         );
@@ -1085,8 +1136,8 @@ final class Expectation
             $this,
             fn (ObjectDescription $object): bool => isset($object->reflectionClass)
                 && $object->reflectionClass->isEnum()
-                && (new ReflectionEnum($object->name))->isBacked() // @phpstan-ignore-line
-                && (string) (new ReflectionEnum($object->name))->getBackingType() === $backingType, // @phpstan-ignore-line
+                && new ReflectionEnum($object->name)->isBacked() // @phpstan-ignore-line
+                && (string) new ReflectionEnum($object->name)->getBackingType() === $backingType, // @phpstan-ignore-line
             'to be '.$backingType.' backed enum',
             FileLineFinder::where(fn (string $line): bool => str_contains($line, 'class')),
         );

src/Expectations/HigherOrderExpectation.php

@@ -112,7 +112,7 @@ final class HigherOrderExpectation
      * Dynamically calls methods on the class with the given arguments.
      *
      * @param  array<int, mixed>  $arguments
-     * @return self<TOriginalValue, mixed>|self<TOriginalValue, TValue>
+     * @return self<TOriginalValue, mixed>
      */
     public function __call(string $name, array $arguments): self
     {
@@ -127,7 +127,7 @@ final class HigherOrderExpectation
     /**
      * Accesses properties in the value or in the expectation.
      *
-     * @return self<TOriginalValue, mixed>|self<TOriginalValue, TValue>
+     * @return self<TOriginalValue, mixed>
      */
     public function __get(string $name): self
     {

src/Expectations/OppositeExpectation.php

@@ -576,15 +576,7 @@ final readonly class OppositeExpectation
 
         return Targeted::make(
             $original,
-            function (ObjectDescription $object) use ($traits): bool {
-                foreach ($traits as $trait) {
-                    if (isset($object->reflectionClass) && in_array($trait, $object->reflectionClass->getTraitNames(), true)) {
-                        return false;
-                    }
-                }
-
-                return true;
-            },
+            fn (ObjectDescription $object): bool => array_all($traits, fn (string $trait): bool => ! isset($object->reflectionClass) || ! in_array($trait, $object->reflectionClass->getTraitNames(), true)),
             "not to use traits '".implode("', '", $traits)."'",
             FileLineFinder::where(fn (string $line): bool => str_contains($line, 'class')),
         );
@@ -604,15 +596,7 @@ final readonly class OppositeExpectation
 
         return Targeted::make(
             $original,
-            function (ObjectDescription $object) use ($interfaces): bool {
-                foreach ($interfaces as $interface) {
-                    if (isset($object->reflectionClass) && $object->reflectionClass->implementsInterface($interface)) {
-                        return false;
-                    }
-                }
-
-                return true;
-            },
+            fn (ObjectDescription $object): bool => array_all($interfaces, fn (string $interface): bool => ! isset($object->reflectionClass) || ! $object->reflectionClass->implementsInterface($interface)),
             "not to implement '".implode("', '", $interfaces)."'",
             FileLineFinder::where(fn (string $line): bool => str_contains($line, 'class')),
         );
@@ -814,13 +798,11 @@ final readonly class OppositeExpectation
 
         $exporter = Exporter::default();
 
-        $toString = fn (mixed $argument): string => $exporter->shortenedExport($argument);
-
         throw new ExpectationFailedException(sprintf(
             'Expecting %s not %s %s.',
-            $toString($this->original->value),
+            $exporter->shortenedExport($this->original->value),
             strtolower((string) preg_replace('/(?<!\ )[A-Z]/', ' $0', $name)),
-            implode(' ', array_map(fn (mixed $argument): string => $toString($argument), $arguments)),
+            implode(' ', array_map(fn (mixed $argument): string => $exporter->export($argument), $arguments)),
         ));
     }
 
@@ -852,8 +834,8 @@ final readonly class OppositeExpectation
             $original,
             fn (ObjectDescription $object): bool => isset($object->reflectionClass) === false
                 || ! $object->reflectionClass->isEnum()
-                || ! (new \ReflectionEnum($object->name))->isBacked() // @phpstan-ignore-line
-                || (string) (new \ReflectionEnum($object->name))->getBackingType() !== $backingType, // @phpstan-ignore-line
+                || ! new \ReflectionEnum($object->name)->isBacked() // @phpstan-ignore-line
+                || (string) new \ReflectionEnum($object->name)->getBackingType() !== $backingType, // @phpstan-ignore-line
             'not to be '.$backingType.' backed enum',
             FileLineFinder::where(fn (string $line): bool => str_contains($line, 'class')),
         );

src/Factories/TestCaseFactory.php

@@ -9,6 +9,7 @@ use Pest\Concerns;
 use Pest\Contracts\HasPrintableTestCaseName;
 use Pest\Evaluators\Attributes;
 use Pest\Exceptions\DatasetMissing;
+use Pest\Exceptions\InvalidTestClassName;
 use Pest\Exceptions\ShouldNotHappen;
 use Pest\Exceptions\TestAlreadyExist;
 use Pest\Exceptions\TestClosureMustNotBeStatic;
@@ -17,6 +18,7 @@ use Pest\Factories\Concerns\HigherOrderable;
 use Pest\Support\Reflection;
 use Pest\Support\Str;
 use Pest\TestSuite;
+use PHPUnit\Framework\Attributes\TestDox;
 use PHPUnit\Framework\TestCase;
 use RuntimeException;
 
@@ -58,6 +60,11 @@ final class TestCaseFactory
         Concerns\Expectable::class,
     ];
 
+    /**
+     * The namespace for the test case, overrides the path-based namespace when set.
+     */
+    public ?string $namespace = null;
+
     /**
      * Creates a new Factory instance.
      */
@@ -88,7 +95,8 @@ final class TestCaseFactory
             $filename = (string) preg_replace_callback('~^(?P<drive>[a-z]+:\\\)~i', static fn (array $match): string => strtolower($match['drive']), $filename);
         }
 
-        $filename = str_replace('\\\\', '\\', addslashes((string) realpath($filename)));
+        $realpath = (string) realpath($filename);
+        $filename = str_replace('\\\\', '\\', addslashes($realpath));
         $rootPath = TestSuite::getInstance()->rootPath;
         $relativePath = str_replace($rootPath.DIRECTORY_SEPARATOR, '', $filename);
 
@@ -110,8 +118,8 @@ final class TestCaseFactory
         $relativePath = (string) preg_replace('|%[a-fA-F0-9][a-fA-F0-9]|', '', $relativePath);
         // Remove escaped quote sequences (maintain namespace)
         $relativePath = str_replace(array_map(fn (string $quote): string => sprintf('\\%s', $quote), ['\'', '"']), '', $relativePath);
-        // Limit to A-Z, a-z, 0-9, '_', '-'.
-        $relativePath = (string) preg_replace('/[^A-Za-z0-9\\\\]/', '', $relativePath);
+        // Limit to Unicode letters and numbers.
+        $relativePath = (string) preg_replace('/[^\p{L}\p{N}\\\\]/u', '', $relativePath);
 
         $classFQN = 'P\\'.$relativePath;
 
@@ -126,16 +134,26 @@ final class TestCaseFactory
 
         $partsFQN = explode('\\', $classFQN);
         $className = array_pop($partsFQN);
-        $namespace = implode('\\', $partsFQN);
+        $namespace = $this->namespace ?? implode('\\', $partsFQN);
         $baseClass = sprintf('\%s', $this->class);
 
         if (trim($className) === '') {
             $className = 'InvalidTestName'.Str::random();
+        } elseif (! Str::isValidClassName($className)) {
+            throw InvalidTestClassName::fromClassName($this->filename, $className);
+        }
+
+        if ($this->namespace === null) {
+            foreach ($partsFQN as $partFQN) {
+                if (! Str::isValidIdentifier($partFQN)) {
+                    throw InvalidTestClassName::fromNamespace($this->filename, $namespace, $partFQN);
+                }
+            }
         }
 
         $this->attributes = [
             new Attribute(
-                \PHPUnit\Framework\Attributes\TestDox::class,
+                TestDox::class,
                 [$this->filename],
             ),
             ...$this->attributes,
@@ -143,6 +161,8 @@ final class TestCaseFactory
 
         $attributesCode = Attributes::code($this->attributes);
 
+        $filenameLiteral = var_export($realpath, true);
+
         $methodsCode = implode('', array_map(
             fn (TestCaseMethodFactory $methodFactory): string => $methodFactory->buildForEvaluation(),
             $methods
@@ -152,6 +172,7 @@ final class TestCaseFactory
             $classCode = <<<PHP
             namespace $namespace;
 
+            use Pest\Exceptions\DatasetProviderError as __PestDatasetProviderError;
             use Pest\Repositories\DatasetsRepository as __PestDatasets;
             use Pest\TestSuite as __PestTestSuite;
 
@@ -160,7 +181,7 @@ final class TestCaseFactory
             final class $className extends $baseClass implements $hasPrintableTestCaseClassFQN {
                 $traitsCode
 
-                private static \$__filename = '$filename';
+                public static \$__filename = $filenameLiteral;
 
                 $methodsCode
             }
@@ -191,7 +212,7 @@ final class TestCaseFactory
 
         if (
             $method->closure instanceof \Closure &&
-            (new \ReflectionFunction($method->closure))->isStatic()
+            new \ReflectionFunction($method->closure)->isStatic()
         ) {
 
             throw new TestClosureMustNotBeStatic($method);

src/Factories/TestCaseMethodFactory.php

@@ -9,10 +9,14 @@ use Pest\Evaluators\Attributes;
 use Pest\Exceptions\ShouldNotHappen;
 use Pest\Factories\Concerns\HigherOrderable;
 use Pest\Repositories\DatasetsRepository;
+use Pest\Support\Description;
 use Pest\Support\Str;
 use Pest\TestSuite;
 use PHPUnit\Framework\Assert;
 use PHPUnit\Framework\Attributes\DataProvider;
+use PHPUnit\Framework\Attributes\Depends;
+use PHPUnit\Framework\Attributes\Test;
+use PHPUnit\Framework\Attributes\TestDox;
 use PHPUnit\Framework\TestCase;
 
 /**
@@ -32,7 +36,7 @@ final class TestCaseMethodFactory
     /**
      * The test's describing, if any.
      *
-     * @var array<int, \Pest\Support\Description>
+     * @var array<int, Description>
      */
     public array $describing = [];
 
@@ -46,6 +50,11 @@ final class TestCaseMethodFactory
      */
     public int $repetitions = 1;
 
+    /**
+     * The test's number of flaky retry tries.
+     */
+    public ?int $flakyTries = null;
+
     /**
      * Determines if the test is a "todo".
      */
@@ -192,11 +201,11 @@ final class TestCaseMethodFactory
 
         $this->attributes = [
             new Attribute(
-                \PHPUnit\Framework\Attributes\Test::class,
+                Test::class,
                 [],
             ),
             new Attribute(
-                \PHPUnit\Framework\Attributes\TestDox::class,
+                TestDox::class,
                 [str_replace('*/', '{@*}', $this->description)],
             ),
             ...$this->attributes,
@@ -206,7 +215,7 @@ final class TestCaseMethodFactory
             $depend = Str::evaluable($this->describing === [] ? $depend : Str::describe($this->describing, $depend));
 
             $this->attributes[] = new Attribute(
-                \PHPUnit\Framework\Attributes\Depends::class,
+                Depends::class,
                 [$depend],
             );
         }
@@ -226,6 +235,10 @@ final class TestCaseMethodFactory
             $attributesCode
                 public function $methodName(...\$arguments)
                 {
+                    if (count(\$arguments) === 1 && \$arguments[0] instanceof __PestDatasetProviderError) {
+                        throw \$arguments[0]->getPrevious() ?? \$arguments[0];
+                    }
+
                     return \$this->__runTest(
                         \$this->__test,
                         ...\$arguments,
@@ -252,7 +265,11 @@ final class TestCaseMethodFactory
 
                 public static function $dataProviderName()
                 {
-                    return __PestDatasets::get(self::\$__filename, "$methodName");
+                    try {
+                        return __PestDatasets::get(self::\$__filename, "$methodName");
+                    } catch (\Throwable \$throwable) {
+                        return [[new __PestDatasetProviderError(\$throwable)]];
+                    }
                 }
 
         EOF;

src/Functions.php

@@ -4,7 +4,6 @@ declare(strict_types=1);
 
 use Pest\Browser\Api\ArrayablePendingAwaitablePage;
 use Pest\Browser\Api\PendingAwaitablePage;
-use Pest\Concerns\Expectable;
 use Pest\Configuration;
 use Pest\Exceptions\AfterAllWithinDescribe;
 use Pest\Exceptions\BeforeAllWithinDescribe;
@@ -48,7 +47,7 @@ if (! function_exists('beforeAll')) {
     function beforeAll(Closure $closure): void
     {
         if (DescribeCall::describing() !== []) {
-            $filename = Backtrace::file();
+            $filename = Backtrace::testFile();
 
             throw new BeforeAllWithinDescribe($filename);
         }
@@ -61,13 +60,11 @@ if (! function_exists('beforeEach')) {
     /**
      * Runs the given closure before each test in the current file.
      *
-     * @param-closure-this TestCase  $closure
-     *
-     * @return HigherOrderTapProxy<Expectable|TestCall|TestCase>|Expectable|TestCall|TestCase|mixed
+     * @param-closure-this TestCall  $closure
      */
     function beforeEach(?Closure $closure = null): BeforeEachCall
     {
-        $filename = Backtrace::file();
+        $filename = Backtrace::testFile();
 
         return new BeforeEachCall(TestSuite::getInstance(), $filename, $closure);
     }
@@ -92,8 +89,6 @@ if (! function_exists('describe')) {
      * Adds the given closure as a group of tests. The first argument
      * is the group description; the second argument is a closure
      * that contains the group tests.
-     *
-     * @return HigherOrderTapProxy<Expectable|TestCall|TestCase>|Expectable|TestCall|TestCase|mixed
      */
     function describe(string $description, Closure $tests): DescribeCall
     {
@@ -112,7 +107,7 @@ if (! function_exists('uses')) {
      */
     function uses(string ...$classAndTraits): UsesCall
     {
-        $filename = Backtrace::file();
+        $filename = Backtrace::testFile();
 
         return new UsesCall($filename, array_values($classAndTraits));
     }
@@ -124,7 +119,7 @@ if (! function_exists('pest')) {
      */
     function pest(): Configuration
     {
-        return new Configuration(Backtrace::file());
+        return new Configuration(Backtrace::testFile());
     }
 }
 
@@ -134,13 +129,13 @@ if (! function_exists('test')) {
      * is the test description; the second argument is
      * a closure that contains the test expectations.
      *
-     * @param-closure-this TestCase  $closure
+     * @param-closure-this TestCall  $closure
      *
-     * @return Expectable|TestCall|TestCase|mixed
+     * @return ($description is string ? TestCall : HigherOrderTapProxy|TestCall)
      */
     function test(?string $description = null, ?Closure $closure = null): HigherOrderTapProxy|TestCall
     {
-        if ($description === null && TestSuite::getInstance()->test instanceof \PHPUnit\Framework\TestCase) {
+        if ($description === null && TestSuite::getInstance()->test instanceof TestCase) {
             return new HigherOrderTapProxy(TestSuite::getInstance()->test);
         }
 
@@ -156,34 +151,23 @@ if (! function_exists('it')) {
      * is the test description; the second argument is
      * a closure that contains the test expectations.
      *
-     * @param-closure-this TestCase  $closure
-     *
-     * @return Expectable|TestCall|TestCase|mixed
+     * @param-closure-this TestCall  $closure
      */
     function it(string $description, ?Closure $closure = null): TestCall
     {
         $description = sprintf('it %s', $description);
 
-        /** @var TestCall $test */
-        $test = test($description, $closure);
-
-        return $test;
+        return test($description, $closure);
     }
 }
 
 if (! function_exists('todo')) {
     /**
      * Creates a new test that is marked as "todo".
-     *
-     * @return Expectable|TestCall|TestCase|mixed
      */
     function todo(string $description): TestCall
     {
-        $test = test($description);
-
-        assert($test instanceof TestCall);
-
-        return $test->todo();
+        return test($description)->todo();
     }
 }
 
@@ -191,13 +175,11 @@ if (! function_exists('afterEach')) {
     /**
      * Runs the given closure after each test in the current file.
      *
-     * @param-closure-this TestCase  $closure
-     *
-     * @return Expectable|HigherOrderTapProxy<Expectable|TestCall|TestCase>|TestCall|mixed
+     * @param-closure-this TestCall  $closure
      */
     function afterEach(?Closure $closure = null): AfterEachCall
     {
-        $filename = Backtrace::file();
+        $filename = Backtrace::testFile();
 
         return new AfterEachCall(TestSuite::getInstance(), $filename, $closure);
     }
@@ -210,7 +192,7 @@ if (! function_exists('afterAll')) {
     function afterAll(Closure $closure): void
     {
         if (DescribeCall::describing() !== []) {
-            $filename = Backtrace::file();
+            $filename = Backtrace::testFile();
 
             throw new AfterAllWithinDescribe($filename);
         }
@@ -227,7 +209,7 @@ if (! function_exists('covers')) {
      */
     function covers(array|string ...$classesOrFunctions): void
     {
-        $filename = Backtrace::file();
+        $filename = Backtrace::testFile();
 
         $beforeEachCall = (new BeforeEachCall(TestSuite::getInstance(), $filename));
 
@@ -236,7 +218,7 @@ if (! function_exists('covers')) {
 
         /** @var MutationTestRunner $runner */
         $runner = Container::getInstance()->get(MutationTestRunner::class);
-        /** @var \Pest\Mutate\Repositories\ConfigurationRepository $configurationRepository */
+        /** @var ConfigurationRepository $configurationRepository */
         $configurationRepository = Container::getInstance()->get(ConfigurationRepository::class);
         $everything = $configurationRepository->cliConfiguration->toArray()['everything'] ?? false;
         $classes = $configurationRepository->cliConfiguration->toArray()['classes'] ?? false;
@@ -256,14 +238,14 @@ if (! function_exists('mutates')) {
      */
     function mutates(array|string ...$targets): void
     {
-        $filename = Backtrace::file();
+        $filename = Backtrace::testFile();
 
         $beforeEachCall = (new BeforeEachCall(TestSuite::getInstance(), $filename));
         $beforeEachCall->group('__pest_mutate_only');
 
         /** @var MutationTestRunner $runner */
         $runner = Container::getInstance()->get(MutationTestRunner::class);
-        /** @var \Pest\Mutate\Repositories\ConfigurationRepository $configurationRepository */
+        /** @var ConfigurationRepository $configurationRepository */
         $configurationRepository = Container::getInstance()->get(ConfigurationRepository::class);
         $everything = $configurationRepository->cliConfiguration->toArray()['everything'] ?? false;
         $classes = $configurationRepository->cliConfiguration->toArray()['classes'] ?? false;
@@ -320,7 +302,7 @@ if (! function_exists('visit')) {
      */
     function visit(array|string $url, array $options = []): ArrayablePendingAwaitablePage|PendingAwaitablePage
     {
-        if (! class_exists(\Pest\Browser\Configuration::class)) {
+        if (! class_exists(Pest\Browser\Configuration::class)) {
             PluginBrowser::install();
 
             exit(0);

src/Kernel.php

@@ -27,8 +27,13 @@ use Whoops\Exception\Inspector;
 /**
  * @internal
  */
-final readonly class Kernel
+final class Kernel
 {
+    /**
+     * Either the kernel is terminated or not.
+     */
+    private bool $terminated = false;
+
     /**
      * The Kernel bootstrappers.
      *
@@ -36,6 +41,8 @@ final readonly class Kernel
      */
     private const array BOOTSTRAPPERS = [
         Bootstrappers\BootOverrides::class,
+        Bootstrappers\BootPhpUnitConfiguration::class,
+        Plugins\Tia\Bootstrapper::class,
         Bootstrappers\BootSubscribers::class,
         Bootstrappers\BootFiles::class,
         Bootstrappers\BootView::class,
@@ -43,15 +50,22 @@ final readonly class Kernel
         Bootstrappers\BootExcludeList::class,
     ];
 
+    /**
+     * The Kernel restarters — resolved and invoked from `bin/pest`
+     * before any other Pest class is touched, so the list is exposed
+     * on the Kernel rather than driven from `bin/pest` directly.
+     *
+     * @var array<int, class-string<Contracts\Restarter>>
+     */
+    public const array RESTARTERS = [
+        Restarters\XdebugRestarter::class,
+        Restarters\PcovRestarter::class,
+    ];
+
     /**
      * Creates a new Kernel instance.
      */
-    public function __construct(
-        private Application $application,
-        private OutputInterface $output,
-    ) {
-        //
-    }
+    public function __construct(private readonly Application $application, private readonly OutputInterface $output) {}
 
     /**
      * Boots the Kernel.
@@ -112,9 +126,13 @@ final readonly class Kernel
         $configuration = Registry::get();
         $result = Facade::result();
 
-        return CallsAddsOutput::execute(
+        $result = CallsAddsOutput::execute(
             Result::exitCode($configuration, $result),
         );
+
+        $this->terminate();
+
+        return $result;
     }
 
     /**
@@ -122,6 +140,12 @@ final readonly class Kernel
      */
     public function terminate(): void
     {
+        if ($this->terminated) {
+            return;
+        }
+
+        $this->terminated = true;
+
         $preBufferOutput = Container::getInstance()->get(KernelDump::class);
 
         assert($preBufferOutput instanceof KernelDump);
@@ -139,7 +163,7 @@ final readonly class Kernel
         $this->terminate();
 
         if (is_array($error = error_get_last())) {
-            if (! in_array($error['type'], [E_ERROR, E_CORE_ERROR], true)) {
+            if (! in_array($error['type'], [E_ERROR, E_COMPILE_ERROR, E_CORE_ERROR], true)) {
                 return;
             }
 

src/KernelDump.php

@@ -4,6 +4,7 @@ declare(strict_types=1);
 
 namespace Pest;
 
+use Laravel\Pao\Execution;
 use Pest\Support\View;
 use Symfony\Component\Console\Output\OutputInterface;
 
@@ -28,6 +29,10 @@ final class KernelDump
      */
     public function enable(): void
     {
+        if (class_exists(Execution::class) && Execution::running()) {
+            return;
+        }
+
         ob_start(function (string $message): string {
             $this->buffer .= $message;
 
@@ -68,6 +73,10 @@ final class KernelDump
 
         $type = 'INFO';
 
+        if (is_array($error = error_get_last()) && in_array($error['type'], [E_ERROR, E_COMPILE_ERROR, E_CORE_ERROR], true)) {
+            return;
+        }
+
         if ($this->isInternalError($this->buffer)) {
             $type = 'ERROR';
             $this->buffer = str_replace(
@@ -107,7 +116,6 @@ final class KernelDump
      */
     private function isInternalError(string $output): bool
     {
-        return str_contains($output, 'An error occurred inside PHPUnit.')
-            || str_contains($output, 'Fatal error');
+        return str_contains($output, 'An error occurred inside PHPUnit.');
     }
 }

src/Logging/Converter.php

@@ -12,12 +12,9 @@ use PHPUnit\Event\Code\Test;
 use PHPUnit\Event\Code\TestMethod;
 use PHPUnit\Event\Code\Throwable;
 use PHPUnit\Event\Test\AfterLastTestMethodErrored;
+use PHPUnit\Event\Test\AfterLastTestMethodFailed;
 use PHPUnit\Event\Test\BeforeFirstTestMethodErrored;
-use PHPUnit\Event\Test\ConsideredRisky;
-use PHPUnit\Event\Test\Errored;
-use PHPUnit\Event\Test\Failed;
-use PHPUnit\Event\Test\MarkedIncomplete;
-use PHPUnit\Event\Test\Skipped;
+use PHPUnit\Event\Test\BeforeFirstTestMethodFailed;
 use PHPUnit\Event\TestSuite\TestSuite;
 use PHPUnit\Event\TestSuite\TestSuiteForTestMethodWithDataProvider;
 use PHPUnit\Framework\Exception as FrameworkException;
@@ -151,7 +148,7 @@ final readonly class Converter
     {
         if ($testSuite instanceof TestSuiteForTestMethodWithDataProvider) {
             $firstTest = $this->getFirstTest($testSuite);
-            if ($firstTest instanceof \PHPUnit\Event\Code\TestMethod) {
+            if ($firstTest instanceof TestMethod) {
                 return $this->getTestMethodNameWithoutDatasetSuffix($firstTest);
             }
         }
@@ -179,7 +176,7 @@ final readonly class Converter
     public function getTestSuiteLocation(TestSuite $testSuite): ?string
     {
         $firstTest = $this->getFirstTest($testSuite);
-        if (! $firstTest instanceof \PHPUnit\Event\Code\TestMethod) {
+        if (! $firstTest instanceof TestMethod) {
             return null;
         }
         $path = $firstTest->testDox()->prettifiedClassName();
@@ -252,23 +249,29 @@ final readonly class Converter
             ...$result->testMarkedIncompleteEvents(),
         ];
 
-        $numberOfNotPassedTests = count(
-            array_unique(
-                array_map(
-                    function (AfterLastTestMethodErrored|BeforeFirstTestMethodErrored|Errored|Failed|Skipped|ConsideredRisky|MarkedIncomplete $event): string {
-                        if ($event instanceof BeforeFirstTestMethodErrored
-                            || $event instanceof AfterLastTestMethodErrored) {
-                            return $event->testClassName();
-                        }
+        $notPassedTests = [];
 
-                        return $this->getTestCaseLocation($event->test());
-                    },
-                    $events
-                )
-            )
-        );
+        foreach ($events as $event) {
+            if ($event instanceof AfterLastTestMethodErrored) {
+                // PHPUnit's collector does not count these towards `numberOfTestsRun`...
+                continue;
+            }
+            if ($event instanceof AfterLastTestMethodFailed) {
+                // PHPUnit's collector does not count these towards `numberOfTestsRun`...
+                continue;
+            }
+            if ($event instanceof BeforeFirstTestMethodErrored || $event instanceof BeforeFirstTestMethodFailed) {
+                $notPassedTests[] = $event->testClassName();
 
-        $numberOfPassedTests = $result->numberOfTestsRun() - $numberOfNotPassedTests;
+                continue;
+            }
+
+            $notPassedTests[] = $this->getTestCaseLocation($event->test());
+        }
+
+        $numberOfPassedTests = $result->numberOfTestsRun()
+            - count(array_unique($notPassedTests))
+            - $result->numberOfTestSkippedByTestSuiteSkippedEvents();
 
         return $this->stateGenerator->fromPhpUnitTestResult($numberOfPassedTests, $result);
     }

src/Logging/TeamCity/Subscriber/TestSkippedSubscriber.php

@@ -14,6 +14,10 @@ final class TestSkippedSubscriber extends Subscriber implements SkippedSubscribe
 {
     public function notify(Skipped $event): void
     {
+        if ($event->message() === '__TODO__') {
+            return; // "todo" tests are reported in the summary, not as ignored tests...
+        }
+
         $this->logger()->testSkipped($event);
     }
 }

src/Logging/TeamCity/TeamCityLogger.php

@@ -200,7 +200,7 @@ final class TeamCityLogger
 
     public function testFinished(Finished $event): void
     {
-        if (! $this->time instanceof \PHPUnit\Event\Telemetry\HRTime) {
+        if (! $this->time instanceof HRTime) {
             throw ShouldNotHappen::fromMessage('Start time has not been set.');
         }
 
@@ -241,6 +241,12 @@ final class TeamCityLogger
                 $telemetry->memoryUsageSinceStart(),
                 $telemetry->durationSincePrevious(),
                 $telemetry->memoryUsageSincePrevious(),
+                $telemetry->userCpuTimeSinceStart(),
+                $telemetry->systemCpuTimeSinceStart(),
+                $telemetry->totalCpuTimeSinceStart(),
+                $telemetry->userCpuTimeSincePrevious(),
+                $telemetry->systemCpuTimeSincePrevious(),
+                $telemetry->totalCpuTimeSincePrevious(),
             );
         }
 

src/Mixins/Expectation.php

@@ -9,10 +9,12 @@ use Closure;
 use Countable;
 use DateTimeInterface;
 use Error;
+use Illuminate\Testing\TestResponse;
 use InvalidArgumentException;
 use JsonSerializable;
 use Pest\Exceptions\InvalidExpectationValue;
 use Pest\Matchers\Any;
+use Pest\Plugins\Snapshot;
 use Pest\Support\Arr;
 use Pest\Support\Exporter;
 use Pest\Support\NullClosure;
@@ -842,7 +844,7 @@ final class Expectation
             is_object($this->value) && method_exists($this->value, 'toSnapshot') => $this->value->toSnapshot(),
             is_object($this->value) && method_exists($this->value, '__toString') => $this->value->__toString(),
             is_object($this->value) && method_exists($this->value, 'toString') => $this->value->toString(),
-            $this->value instanceof \Illuminate\Testing\TestResponse => $this->value->getContent(), // @phpstan-ignore-line
+            $this->value instanceof TestResponse => $this->value->getContent(), // @phpstan-ignore-line
             is_array($this->value) => json_encode($this->value, JSON_THROW_ON_ERROR | JSON_PRETTY_PRINT),
             $this->value instanceof Traversable => json_encode(iterator_to_array($this->value), JSON_THROW_ON_ERROR | JSON_PRETTY_PRINT),
             $this->value instanceof JsonSerializable => json_encode($this->value->jsonSerialize(), JSON_THROW_ON_ERROR | JSON_PRETTY_PRINT),
@@ -850,18 +852,31 @@ final class Expectation
             default => InvalidExpectationValue::expected('array|object|string'),
         };
 
-        if ($snapshots->has()) {
-            [$filename, $content] = $snapshots->get();
-
-            Assert::assertSame(
-                strtr($content, ["\r\n" => "\n", "\r" => "\n"]),
-                strtr($string, ["\r\n" => "\n", "\r" => "\n"]),
-                $message === '' ? "Failed asserting that the string value matches its snapshot ($filename)." : $message
-            );
-        } else {
+        if (! $snapshots->has()) {
             $filename = $snapshots->save($string);
 
             TestSuite::getInstance()->registerSnapshotChange("Snapshot created at [$filename]");
+        } else {
+            [$filename, $content] = $snapshots->get();
+
+            $normalizedContent = strtr($content, ["\r\n" => "\n", "\r" => "\n"]);
+            $normalizedString = strtr($string, ["\r\n" => "\n", "\r" => "\n"]);
+
+            if (Snapshot::$updateSnapshots && $normalizedContent !== $normalizedString) {
+                $snapshots->save($string);
+
+                TestSuite::getInstance()->registerSnapshotChange("Snapshot updated at [$filename]");
+            } else {
+                if (Snapshot::$updateSnapshots) {
+                    TestSuite::getInstance()->registerSnapshotChange("Snapshot unchanged at [$filename]");
+                }
+
+                Assert::assertSame(
+                    $normalizedContent,
+                    $normalizedString,
+                    $message === '' ? "Failed asserting that the string value matches its snapshot ($filename)." : $message
+                );
+            }
         }
 
         return $this;
@@ -921,7 +936,7 @@ final class Expectation
 
         if ($exception instanceof Closure) {
             $callback = $exception;
-            $parameters = (new ReflectionFunction($exception))->getParameters();
+            $parameters = new ReflectionFunction($exception)->getParameters();
 
             if (count($parameters) !== 1) {
                 throw new InvalidArgumentException('The given closure must have a single parameter type-hinted as the class string.');
@@ -939,6 +954,7 @@ final class Expectation
         } catch (Throwable $e) {
 
             if ($exception instanceof Throwable) {
+                // @phpstan-ignore-next-line
                 expect($e)
                     ->toBeInstanceOf($exception::class, $message)
                     ->and($e->getMessage())->toBe($exceptionMessage ?? $exception->getMessage(), $message);
@@ -983,7 +999,7 @@ final class Expectation
      */
     private function export(mixed $value): string
     {
-        if (! $this->exporter instanceof \Pest\Support\Exporter) {
+        if (! $this->exporter instanceof Exporter) {
             $this->exporter = Exporter::default();
         }
 
@@ -1126,6 +1142,22 @@ final class Expectation
         return $this;
     }
 
+    /**
+     * Asserts that the value is a ULID.
+     *
+     * @return self<TValue>
+     */
+    public function toBeUlid(string $message = ''): self
+    {
+        if (! is_string($this->value)) {
+            InvalidExpectationValue::expected('string');
+        }
+
+        Assert::assertTrue(Str::isUlid($this->value), $message);
+
+        return $this;
+    }
+
     /**
      * Asserts that the value is between 2 specified values
      *
@@ -1139,6 +1171,22 @@ final class Expectation
         return $this;
     }
 
+    /**
+     * Asserts that the value is an email address.
+     *
+     * @return self<TValue>
+     */
+    public function toBeEmail(string $message = ''): self
+    {
+        if ($message === '') {
+            $message = "Failed asserting that {$this->value} is an email address.";
+        }
+
+        Assert::assertTrue(Str::isEmail((string) $this->value), $message);
+
+        return $this;
+    }
+
     /**
      * Asserts that the value is a url
      *
@@ -1171,4 +1219,104 @@ final class Expectation
 
         return $this;
     }
+
+    /**
+     * Asserts that the value is an IP address.
+     *
+     * @return self<TValue>
+     */
+    public function toBeIpAddress(string $message = ''): self
+    {
+        if (! is_string($this->value)) {
+            InvalidExpectationValue::expected('string');
+        }
+
+        Assert::assertTrue((bool) filter_var($this->value, FILTER_VALIDATE_IP), $message);
+
+        return $this;
+    }
+
+    /**
+     * Asserts that the value is a MAC address.
+     *
+     * @return self<TValue>
+     */
+    public function toBeMacAddress(string $message = ''): self
+    {
+        if (! is_string($this->value)) {
+            InvalidExpectationValue::expected('string');
+        }
+
+        Assert::assertTrue((bool) filter_var($this->value, FILTER_VALIDATE_MAC), $message);
+
+        return $this;
+    }
+
+    /**
+     * Asserts that the value is a hostname.
+     *
+     * @return self<TValue>
+     */
+    public function toBeHostname(string $message = ''): self
+    {
+        if (! is_string($this->value)) {
+            InvalidExpectationValue::expected('string');
+        }
+
+        Assert::assertTrue((bool) filter_var($this->value, FILTER_VALIDATE_DOMAIN, FILTER_FLAG_HOSTNAME), $message);
+
+        return $this;
+    }
+
+    /**
+     * Asserts that the value is a domain name.
+     *
+     * @return self<TValue>
+     */
+    public function toBeDomain(string $message = ''): self
+    {
+        if (! is_string($this->value)) {
+            InvalidExpectationValue::expected('string');
+        }
+
+        $isValid = filter_var($this->value, FILTER_VALIDATE_DOMAIN, FILTER_FLAG_HOSTNAME) !== false
+            && str_contains($this->value, '.');
+
+        Assert::assertTrue($isValid, $message);
+
+        return $this;
+    }
+
+    /**
+     * Asserts that the value is a base64-encoded string.
+     *
+     * @return self<TValue>
+     */
+    public function toBeBase64(string $message = ''): self
+    {
+        if (! is_string($this->value)) {
+            InvalidExpectationValue::expected('string');
+        }
+
+        $decoded = base64_decode($this->value, true);
+        Assert::assertTrue($decoded !== false && base64_encode($decoded) === $this->value, $message);
+
+        return $this;
+    }
+
+    /**
+     * Asserts that the value is a hexadecimal string.
+     *
+     * @return self<TValue>
+     */
+    public function toBeHexadecimal(string $message = ''): self
+    {
+        if (! is_string($this->value)) {
+            InvalidExpectationValue::expected('string');
+        }
+
+        Assert::assertTrue(ctype_xdigit($this->value), $message);
+
+        return $this;
+    }
 }

src/PHPStan/HigherOrderExpectationTypeExtension.php

@@ -0,0 +1,57 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest\PHPStan;
+
+use Pest\Expectations\HigherOrderExpectation;
+use PhpParser\Node\Expr;
+use PhpParser\Node\Expr\PropertyFetch;
+use PhpParser\Node\Identifier;
+use PHPStan\Analyser\Scope;
+use PHPStan\Reflection\ReflectionProvider;
+use PHPStan\Type\ExpressionTypeResolverExtension;
+use PHPStan\Type\ObjectType;
+use PHPStan\Type\Type;
+
+/**
+ * Prevents native declared properties of HigherOrderExpectation (like $original,
+ * $expectation, $opposite, $shouldReset) from being incorrectly resolved as
+ * higher-order value property accesses by downstream ExpressionTypeResolverExtensions.
+ *
+ * This extension must be registered BEFORE the pest-plugin-phpstan HigherOrderExpectationTypeExtension.
+ *
+ * @internal
+ */
+final readonly class HigherOrderExpectationTypeExtension implements ExpressionTypeResolverExtension
+{
+    public function __construct(
+        private ReflectionProvider $reflectionProvider,
+    ) {}
+
+    public function getType(Expr $expr, Scope $scope): ?Type
+    {
+        if (! $expr instanceof PropertyFetch || ! $expr->name instanceof Identifier) {
+            return null;
+        }
+
+        $varType = $scope->getType($expr->var);
+
+        if (! new ObjectType(HigherOrderExpectation::class)->isSuperTypeOf($varType)->yes()) {
+            return null;
+        }
+
+        if (! $this->reflectionProvider->hasClass(HigherOrderExpectation::class)) {
+            return null;
+        }
+
+        $propertyName = $expr->name->name;
+        $classReflection = $this->reflectionProvider->getClass(HigherOrderExpectation::class);
+
+        if (! $classReflection->hasNativeProperty($propertyName)) {
+            return null;
+        }
+
+        return $varType->getProperty($propertyName, $scope)->getReadableType();
+    }
+}

src/PendingCalls/Concerns/Describable.php

@@ -4,6 +4,8 @@ declare(strict_types=1);
 
 namespace Pest\PendingCalls\Concerns;
 
+use Pest\Support\Description;
+
 /**
  * @internal
  */
@@ -12,14 +14,14 @@ trait Describable
     /**
      * Note: this is property is not used; however, it gets added automatically by rector php.
      *
-     * @var array<int, \Pest\Support\Description>
+     * @var array<int, Description>
      */
     public array $__describing;
 
     /**
      * The describing of the test case.
      *
-     * @var array<int, \Pest\Support\Description>
+     * @var array<int, Description>
      */
     public array $describing = [];
 }

src/PendingCalls/DescribeCall.php

@@ -5,7 +5,6 @@ declare(strict_types=1);
 namespace Pest\PendingCalls;
 
 use Closure;
-use Pest\Support\Backtrace;
 use Pest\Support\Description;
 use Pest\TestSuite;
 
@@ -53,7 +52,11 @@ final class DescribeCall
      */
     public function __destruct()
     {
-        unset($this->currentBeforeEachCall);
+        // Ensure BeforeEachCall destructs before creating tests
+        // by moving to local scope and clearing the reference
+        $beforeEach = $this->currentBeforeEachCall;
+        $this->currentBeforeEachCall = null;
+        unset($beforeEach);  // Trigger destructor immediately
 
         self::$describing[] = $this->description;
 
@@ -71,12 +74,13 @@ final class DescribeCall
      */
     public function __call(string $name, array $arguments): self
     {
-        $filename = Backtrace::file();
+        if (! $this->currentBeforeEachCall instanceof BeforeEachCall) {
+            $this->currentBeforeEachCall = new BeforeEachCall(TestSuite::getInstance(), $this->filename);
 
-        if (! $this->currentBeforeEachCall instanceof \Pest\PendingCalls\BeforeEachCall) {
-            $this->currentBeforeEachCall = new BeforeEachCall(TestSuite::getInstance(), $filename);
-
-            $this->currentBeforeEachCall->describing[] = $this->description;
+            $this->currentBeforeEachCall->describing = array_merge(
+                DescribeCall::describing(),
+                [$this->description]
+            );
         }
 
         $this->currentBeforeEachCall->{$name}(...$arguments);

src/PendingCalls/TestCall.php

@@ -22,6 +22,10 @@ use Pest\Support\NullClosure;
 use Pest\Support\Str;
 use Pest\TestSuite;
 use PHPUnit\Framework\AssertionFailedError;
+use PHPUnit\Framework\Attributes\CoversClass;
+use PHPUnit\Framework\Attributes\CoversFunction;
+use PHPUnit\Framework\Attributes\CoversTrait;
+use PHPUnit\Framework\Attributes\Group;
 use PHPUnit\Framework\TestCase;
 
 /**
@@ -211,7 +215,7 @@ final class TestCall // @phpstan-ignore-line
     {
         foreach ($groups as $group) {
             $this->testCaseMethod->attributes[] = new Attribute(
-                \PHPUnit\Framework\Attributes\Group::class,
+                Group::class,
                 [$group],
             );
         }
@@ -408,6 +412,20 @@ final class TestCall // @phpstan-ignore-line
         return $this;
     }
 
+    /**
+     * Marks the test as flaky, retrying it up to the given number of times.
+     */
+    public function flaky(int $tries = 3): self
+    {
+        if ($tries < 1) {
+            throw new InvalidArgumentException('The number of tries must be greater than 0.');
+        }
+
+        $this->testCaseMethod->flakyTries = $tries;
+
+        return $this;
+    }
+
     /**
      * Marks the test as "todo".
      */
@@ -604,7 +622,7 @@ final class TestCall // @phpstan-ignore-line
     {
         foreach ($classes as $class) {
             $this->testCaseFactoryAttributes[] = new Attribute(
-                \PHPUnit\Framework\Attributes\CoversClass::class,
+                CoversClass::class,
                 [$class],
             );
         }
@@ -627,7 +645,7 @@ final class TestCall // @phpstan-ignore-line
     {
         foreach ($traits as $trait) {
             $this->testCaseFactoryAttributes[] = new Attribute(
-                \PHPUnit\Framework\Attributes\CoversTrait::class,
+                CoversTrait::class,
                 [$trait],
             );
         }
@@ -650,7 +668,7 @@ final class TestCall // @phpstan-ignore-line
     {
         foreach ($functions as $function) {
             $this->testCaseFactoryAttributes[] = new Attribute(
-                \PHPUnit\Framework\Attributes\CoversFunction::class,
+                CoversFunction::class,
                 [$function],
             );
         }

src/PendingCalls/UsesCall.php

@@ -53,9 +53,7 @@ final class UsesCall
         $this->targets = [$filename];
     }
 
-    /**
-     * @deprecated Use `pest()->printer()->compact()` instead.
-     */
+    #[\Deprecated(message: 'Use `pest()->printer()->compact()` instead.')]
     public function compact(): self
     {
         DefaultPrinter::compact(true);

src/Pest.php

@@ -6,7 +6,7 @@ namespace Pest;
 
 function version(): string
 {
-    return '4.3.1';
+    return '5.0.3';
 }
 
 function testDirectory(string $file = ''): string

src/Plugins/Cache.php

@@ -50,7 +50,7 @@ final class Cache implements HandlesArguments
             }
         }
 
-        if (! $this->hasArgument('--parallel', $arguments)) {
+        if (! $this->hasArgument('--parallel', $arguments) && ! $this->hasArgument('--do-not-cache-result', $arguments) && ! $this->hasArgument('--cache-result', $arguments)) {
             return $this->pushArgument('--cache-result', $arguments);
         }
 

src/Plugins/Concerns/HandleArguments.php

@@ -50,10 +50,40 @@ trait HandleArguments
      */
     public function popArgument(string $argument, array $arguments): array
     {
-        $arguments = array_flip($arguments);
+        $key = array_search($argument, $arguments, true);
 
-        unset($arguments[$argument]);
+        while ($key !== false) {
+            unset($arguments[$key]);
+            $key = array_search($argument, $arguments, true);
+        }
 
-        return array_values(array_flip($arguments));
+        return array_values($arguments);
+    }
+
+    /**
+     * Pops the given argument and its value from the arguments, returning the value.
+     *
+     * @param  array<int, string>  $arguments
+     */
+    public function popArgumentValue(string $argument, array &$arguments): ?string
+    {
+        foreach ($arguments as $key => $value) {
+            if (str_contains($value, "$argument=")) {
+                unset($arguments[$key]);
+                $arguments = array_values($arguments);
+
+                return substr($value, strlen($argument) + 1);
+            }
+
+            if ($value === $argument && isset($arguments[$key + 1])) {
+                $result = $arguments[$key + 1];
+                unset($arguments[$key], $arguments[$key + 1]);
+                $arguments = array_values($arguments);
+
+                return $result;
+            }
+        }
+
+        return null;
     }
 }

src/Plugins/Coverage.php

@@ -17,12 +17,16 @@ use Symfony\Component\Console\Output\OutputInterface;
  */
 final class Coverage implements AddsOutput, HandlesArguments
 {
+    use Concerns\HandleArguments;
+
     private const string COVERAGE_OPTION = 'coverage';
 
     private const string MIN_OPTION = 'min';
 
     private const string EXACTLY_OPTION = 'exactly';
 
+    private const string ONLY_COVERED_OPTION = 'only-covered';
+
     /**
      * Whether it should show the coverage or not.
      */
@@ -43,6 +47,11 @@ final class Coverage implements AddsOutput, HandlesArguments
      */
     public ?float $coverageExactly = null;
 
+    /**
+     * Whether it should show only covered files.
+     */
+    public bool $showOnlyCovered = false;
+
     /**
      * Creates a new Plugin instance.
      */
@@ -57,7 +66,7 @@ final class Coverage implements AddsOutput, HandlesArguments
     public function handleArguments(array $originals): array
     {
         $arguments = [...[''], ...array_values(array_filter($originals, function (string $original): bool {
-            foreach ([self::COVERAGE_OPTION, self::MIN_OPTION, self::EXACTLY_OPTION] as $option) {
+            foreach ([self::COVERAGE_OPTION, self::MIN_OPTION, self::EXACTLY_OPTION, self::ONLY_COVERED_OPTION] as $option) {
                 if ($original === sprintf('--%s', $option)) {
                     return true;
                 }
@@ -70,16 +79,15 @@ final class Coverage implements AddsOutput, HandlesArguments
             return false;
         }))];
 
-        $originals = array_flip($originals);
         foreach ($arguments as $argument) {
-            unset($originals[$argument]);
+            $originals = $this->popArgument($argument, $originals);
         }
-        $originals = array_flip($originals);
 
         $inputs = [];
         $inputs[] = new InputOption(self::COVERAGE_OPTION, null, InputOption::VALUE_NONE);
         $inputs[] = new InputOption(self::MIN_OPTION, null, InputOption::VALUE_REQUIRED);
         $inputs[] = new InputOption(self::EXACTLY_OPTION, null, InputOption::VALUE_REQUIRED);
+        $inputs[] = new InputOption(self::ONLY_COVERED_OPTION, null, InputOption::VALUE_NONE);
 
         $input = new ArgvInput($arguments, new InputDefinition($inputs));
         if ((bool) $input->getOption(self::COVERAGE_OPTION)) {
@@ -120,6 +128,10 @@ final class Coverage implements AddsOutput, HandlesArguments
             $this->coverageExactly = (float) $exactlyOption;
         }
 
+        if ((bool) $input->getOption(self::ONLY_COVERED_OPTION)) {
+            $this->showOnlyCovered = true;
+        }
+
         if ($_SERVER['COLLISION_PRINTER_COMPACT'] ?? false) {
             $this->compact = true;
         }
@@ -144,7 +156,7 @@ final class Coverage implements AddsOutput, HandlesArguments
                 exit(1);
             }
 
-            $coverage = \Pest\Support\Coverage::report($this->output, $this->compact);
+            $coverage = \Pest\Support\Coverage::report($this->output, $this->compact, $this->showOnlyCovered);
             $exitCode = (int) ($coverage < $this->coverageMin);
 
             if ($exitCode === 0 && $this->coverageExactly !== null) {

src/Plugins/Help.php

@@ -107,6 +107,48 @@ final readonly class Help implements HandlesArguments
             'desc' => 'Initialise a standard Pest configuration',
         ]], ...$content['Configuration']];
 
+        $content['AI'] = [
+            [
+                'arg' => '--ai',
+                'desc' => 'Run a code snippet as a fully scaffolded test for AI verification',
+            ],
+        ];
+
+        $content['Tia'] = [
+            [
+                'arg' => '--tia',
+                'desc' => 'Re-run only the tests affected by your changes, replaying the rest from cache',
+            ],
+            [
+                'arg' => '--no-tia',
+                'desc' => 'Disable test impact analysis for this run',
+            ],
+            [
+                'arg' => '--tia --fresh',
+                'desc' => 'Discard the recorded dependency graph and record it again',
+            ],
+            [
+                'arg' => '--tia --filtered',
+                'desc' => 'Narrow the run to the affected test files only',
+            ],
+            [
+                'arg' => '--tia --locally',
+                'desc' => 'Enable test impact analysis on local machines only',
+            ],
+            [
+                'arg' => '--tia --baselined',
+                'desc' => 'Fetch the shared dependency graph recorded by the CI baseline',
+            ],
+            [
+                'arg' => '--tia --refetch',
+                'desc' => 'Force a fresh fetch of the shared dependency graph',
+            ],
+            [
+                'arg' => '--baseline',
+                'desc' => 'Output to standard output the test impact analysis storage directory',
+            ],
+        ];
+
         $content['Execution'] = [...[
             [
                 'arg' => '--parallel',
@@ -116,6 +158,10 @@ final readonly class Help implements HandlesArguments
                 'arg' => '--update-snapshots',
                 'desc' => 'Update snapshots for tests using the "toMatchSnapshot" expectation',
             ],
+            [
+                'arg' => '--update-shards',
+                'desc' => 'Update shards.json with test timing data for time-balanced sharding',
+            ],
         ], ...$content['Execution']];
 
         $content['Selection'] = [[
@@ -145,6 +191,9 @@ final readonly class Help implements HandlesArguments
         ], [
             'arg' => '--dirty',
             'desc' => 'Only run tests that have uncommitted changes according to Git',
+        ], [
+            'arg' => '--flaky',
+            'desc' => 'Output to standard output tests marked as flaky',
         ], ...$content['Selection']];
 
         $content['Reporting'] = [...$content['Reporting'], ...[
@@ -160,6 +209,12 @@ final readonly class Help implements HandlesArguments
         ], [
             'arg' => '--coverage --min',
             'desc' => 'Set the minimum required coverage percentage, and fail if not met',
+        ], [
+            'arg' => '--coverage --exactly',
+            'desc' => 'Set the exact required coverage percentage, and fail if not met',
+        ], [
+            'arg' => '--coverage --only-covered',
+            'desc' => 'Hide files with 0% coverage from the code coverage report',
         ], ...$content['Code Coverage']];
 
         $content['Mutation Testing'] = [[

src/Plugins/Parallel.php

@@ -34,7 +34,7 @@ final class Parallel implements HandlesArguments
     /**
      * @var string[]
      */
-    private const array UNSUPPORTED_ARGUMENTS = ['--todo', '--todos', '--retry', '--notes', '--issue', '--pr', '--pull-request'];
+    private const array UNSUPPORTED_ARGUMENTS = ['--todo', '--todos', '--retry', '--notes', '--issue', '--pr', '--pull-request', '--flaky'];
 
     /**
      * Whether the given command line arguments indicate that the test suite should be run in parallel.
@@ -127,7 +127,9 @@ final class Parallel implements HandlesArguments
             $arguments
         );
 
-        $exitCode = $this->paratestCommand()->run(new ArgvInput($filteredArguments), new CleanConsoleOutput);
+        $filteredArguments = $this->processTeamcityArguments($filteredArguments);
+
+        $exitCode = $this->paratestCommand()->run(new ArgvInput(array_values($filteredArguments)), new CleanConsoleOutput);
 
         return CallsAddsOutput::execute($exitCode);
     }
@@ -176,13 +178,7 @@ final class Parallel implements HandlesArguments
     {
         $arguments = new ArgvInput;
 
-        foreach (self::UNSUPPORTED_ARGUMENTS as $unsupportedArgument) {
-            if ($arguments->hasParameterOption($unsupportedArgument)) {
-                return true;
-            }
-        }
-
-        return false;
+        return array_any(self::UNSUPPORTED_ARGUMENTS, fn (string|array $unsupportedArgument): bool => $arguments->hasParameterOption($unsupportedArgument));
     }
 
     /**
@@ -197,4 +193,18 @@ final class Parallel implements HandlesArguments
 
         return $this->popArgument('-p', $arguments);
     }
+
+    /**
+     * @param  string[]  $arguments
+     * @return string[]
+     */
+    public function processTeamcityArguments(array $arguments): array
+    {
+        $argv = new ArgvInput;
+        if ($argv->hasParameterOption('--teamcity')) {
+            $arguments[] = '--teamcity';
+        }
+
+        return $arguments;
+    }
 }

src/Plugins/Parallel/Handlers/Laravel.php

@@ -7,6 +7,7 @@ namespace Pest\Plugins\Parallel\Handlers;
 use Closure;
 use Composer\InstalledVersions;
 use Illuminate\Testing\ParallelRunner;
+use Orchestra\Testbench\TestCase;
 use ParaTest\Options;
 use ParaTest\RunnerInterface;
 use Pest\Contracts\Plugins\HandlesArguments;
@@ -39,13 +40,13 @@ final class Laravel implements HandlesArguments
      * Executes the given closure when running Laravel.
      *
      * @param  array<int, string>  $arguments
-     * @param  CLosure(array<int, string>): array<int, string>  $closure
+     * @param  Closure(array<int, string>): array<int, string>  $closure
      * @return array<int, string>
      */
     private function whenUsingLaravel(array $arguments, Closure $closure): array
     {
         $isLaravelApplication = InstalledVersions::isInstalled('laravel/framework', false);
-        $isLaravelPackage = class_exists(\Orchestra\Testbench\TestCase::class);
+        $isLaravelPackage = class_exists(TestCase::class);
 
         if ($isLaravelApplication && ! $isLaravelPackage) {
             return $closure($arguments);

src/Plugins/Parallel/Paratest/ResultPrinter.php

@@ -81,7 +81,9 @@ final class ResultPrinter
             public function flush(): void {}
         };
 
-        $this->compactPrinter = CompactPrinter::default();
+        $this->compactPrinter = CompactPrinter::default(
+            decorated: ! in_array('--colors=never', $_SERVER['argv'] ?? [], true),
+        );
 
         if (! $this->options->configuration->hasLogfileTeamcity()) {
             return;
@@ -92,14 +94,13 @@ final class ResultPrinter
         $this->teamcityLogFileHandle = $teamcityLogFileHandle;
     }
 
-    /** @param  list<SplFileInfo>  $teamcityFiles */
     public function printFeedback(
         SplFileInfo $progressFile,
         SplFileInfo $outputFile,
-        array $teamcityFiles
+        ?SplFileInfo $teamcityFile,
     ): void {
-        if ($this->options->needsTeamcity) {
-            $teamcityProgress = $this->tailMultiple($teamcityFiles);
+        if ($this->options->needsTeamcity && $teamcityFile instanceof SplFileInfo) {
+            $teamcityProgress = $this->tailMultiple([$teamcityFile]);
 
             if ($this->teamcityLogFileHandle !== null) {
                 fwrite($this->teamcityLogFileHandle, $teamcityProgress);
@@ -119,10 +120,6 @@ final class ResultPrinter
 
         $unexpectedOutput = $this->tail($outputFile);
         if ($unexpectedOutput !== '') {
-            if (preg_match('/^T+$/', $unexpectedOutput) > 0) {
-                return;
-            }
-
             $this->output->write($unexpectedOutput);
         }
 
@@ -171,8 +168,18 @@ final class ResultPrinter
 
         $state = (new StateGenerator)->fromPhpUnitTestResult($this->passedTests, $testResult);
 
-        $this->compactPrinter->errors($state);
-        $this->compactPrinter->recap($state, $testResult, $duration, $this->options);
+        if ($testResult->numberOfTestsRun() === 0 && $state->testSuiteTestsCount() === 0) {
+            $this->output->writeln([
+                '',
+                '  <fg=white;options=bold;bg=blue> INFO </> No tests found.',
+                '',
+            ]);
+        }
+
+        if (! isset($_SERVER['PEST_PARALLEL_NO_OUTPUT'])) {
+            $this->compactPrinter->errors($state);
+            $this->compactPrinter->recap($state, $testResult, $duration, $this->options);
+        }
     }
 
     private function printFeedbackItem(string $item): void

src/Plugins/Parallel/Paratest/WrapperRunner.php

@@ -7,13 +7,14 @@ namespace Pest\Plugins\Parallel\Paratest;
 use const DIRECTORY_SEPARATOR;
 
 use NunoMaduro\Collision\Adapters\Phpunit\Support\ResultReflection;
-use ParaTest\Coverage\CoverageMerger;
 use ParaTest\JUnit\LogMerger;
 use ParaTest\JUnit\Writer;
 use ParaTest\Options;
 use ParaTest\RunnerInterface;
+use ParaTest\WrapperRunner\MissingResultsException;
 use ParaTest\WrapperRunner\SuiteLoader;
 use ParaTest\WrapperRunner\WrapperWorker;
+use Pest\Plugins\Tia;
 use Pest\Result;
 use Pest\TestSuite;
 use PHPUnit\Event\Facade as EventFacade;
@@ -25,11 +26,17 @@ use PHPUnit\TestRunner\TestResult\Facade as TestResultFacade;
 use PHPUnit\TestRunner\TestResult\TestResult;
 use PHPUnit\TextUI\Configuration\CodeCoverageFilterRegistry;
 use PHPUnit\Util\ExcludeList;
+use ReflectionProperty;
+use SebastianBergmann\CodeCoverage\Node\Builder;
+use SebastianBergmann\CodeCoverage\Serialization\Merger;
+use SebastianBergmann\CodeCoverage\StaticAnalysis\FileAnalyser;
+use SebastianBergmann\CodeCoverage\StaticAnalysis\ParsingSourceAnalyser;
 use SebastianBergmann\Timer\Timer;
 use SplFileInfo;
 use Symfony\Component\Console\Output\OutputInterface;
 use Symfony\Component\Process\PhpExecutableFinder;
 
+use function array_filter;
 use function array_merge;
 use function array_merge_recursive;
 use function array_shift;
@@ -37,8 +44,11 @@ use function assert;
 use function count;
 use function dirname;
 use function file_get_contents;
+use function filesize;
+use function is_file;
 use function max;
 use function realpath;
+use function str_starts_with;
 use function unlink;
 use function unserialize;
 use function usleep;
@@ -48,6 +58,11 @@ use function usleep;
  */
 final class WrapperRunner implements RunnerInterface
 {
+    /**
+     * The merged test result from the parallel run.
+     */
+    public static ?TestResult $result = null;
+
     /**
      * The time to sleep between cycles.
      */
@@ -77,6 +92,18 @@ final class WrapperRunner implements RunnerInterface
     /** @var array<int,int> */
     private array $batches = [];
 
+    /** @var array<non-empty-string,true> */
+    private array $requiredTestResultFiles = [];
+
+    /** @var array<non-empty-string,true> */
+    private array $requiredCoverageFiles = [];
+
+    /** @var list<SplFileInfo> */
+    private array $statusFiles = [];
+
+    /** @var list<SplFileInfo> */
+    private array $progressFiles = [];
+
     /** @var list<SplFileInfo> */
     private array $unexpectedOutputFiles = [];
 
@@ -129,8 +156,10 @@ final class WrapperRunner implements RunnerInterface
 
         /** @var array<int, non-empty-string> $parameters */
         $parameters = $this->handleLaravelHerd($parameters);
+        $parameters = $this->handleTia($parameters);
 
         $parameters[] = $wrapper;
+        $parameters[] = '--test-directory='.TestSuite::getInstance()->testPath;
 
         $this->parameters = $parameters;
         $this->codeCoverageFilterRegistry = new CodeCoverageFilterRegistry;
@@ -139,7 +168,6 @@ final class WrapperRunner implements RunnerInterface
     public function run(): int
     {
         $directory = dirname(__DIR__);
-        assert($directory !== '');
         ExcludeList::addDirectory($directory);
         TestResultFacade::init();
         EventFacade::instance()->seal();
@@ -176,6 +204,19 @@ final class WrapperRunner implements RunnerInterface
         return $parameters;
     }
 
+    /**
+     * @param  array<int, non-empty-string>  $parameters
+     * @return array<int, non-empty-string>
+     */
+    private function handleTia(array $parameters): array
+    {
+        if (! Tia::recordsEdgesInWorkers()) {
+            return $parameters;
+        }
+
+        return array_merge($parameters, ['-d', 'pcov.directory='.TestSuite::getInstance()->rootPath]);
+    }
+
     private function startWorkers(): void
     {
         for ($token = 1; $token <= $this->options->processes; $token++) {
@@ -206,7 +247,7 @@ final class WrapperRunner implements RunnerInterface
 
                 if (
                     $this->exitcode > 0
-                    && $this->options->configuration->stopOnFailure()
+                    && $this->options->configuration->stopOnFailureThreshold() > 0
                 ) {
                     $this->pending = [];
                 } elseif (($pending = array_shift($this->pending)) !== null) {
@@ -221,11 +262,23 @@ final class WrapperRunner implements RunnerInterface
 
     private function flushWorker(WrapperWorker $worker): void
     {
+        if ($worker->hasExecutedTests()) {
+            $testResultFile = $worker->testResultFile->getPathname();
+
+            if ($testResultFile !== '') {
+                $this->requiredTestResultFiles[$testResultFile] = true;
+            }
+
+            if (isset($worker->coverageFile) && $worker->coverageFile->getPathname() !== '') {
+                $this->requiredCoverageFiles[$worker->coverageFile->getPathname()] = true;
+            }
+        }
+
         $this->exitcode = max($this->exitcode, $worker->getExitCode());
         $this->printer->printFeedback(
             $worker->progressFile,
             $worker->unexpectedOutputFile,
-            $this->teamcityFiles,
+            $worker->teamcityFile ?? null,
         );
         $worker->reset();
     }
@@ -268,10 +321,15 @@ final class WrapperRunner implements RunnerInterface
         $worker->start();
         $this->batches[$token] = 0;
 
-        $this->unexpectedOutputFiles[] = $worker->unexpectedOutputFile;
+        $this->statusFiles[] = $worker->statusFile;
+        $this->progressFiles[] = $worker->progressFile;
         $this->unexpectedOutputFiles[] = $worker->unexpectedOutputFile;
         $this->testResultFiles[] = $worker->testResultFile;
 
+        if (isset($worker->resultCacheFile)) {
+            $this->resultCacheFiles[] = $worker->resultCacheFile;
+        }
+
         if (isset($worker->junitFile)) {
             $this->junitFiles[] = $worker->junitFile;
         }
@@ -304,6 +362,20 @@ final class WrapperRunner implements RunnerInterface
 
     private function complete(TestResult $testResultSum): int
     {
+        $missingTestResultFiles = [];
+
+        foreach ($this->requiredTestResultFiles as $filePath => $true) {
+            if (is_file($filePath)) {
+                continue;
+            }
+
+            $missingTestResultFiles[] = $filePath;
+        }
+
+        if ($missingTestResultFiles !== []) {
+            throw MissingResultsException::create($missingTestResultFiles, 'test_result');
+        }
+
         foreach ($this->testResultFiles as $testResultFile) {
             if (! $testResultFile->isFile()) {
                 continue;
@@ -338,6 +410,20 @@ final class WrapperRunner implements RunnerInterface
                 // @phpstan-ignore-next-line
                 array_merge_recursive($testResultSum->testRunnerTriggeredWarningEvents(), $testResult->testRunnerTriggeredWarningEvents()),
                 // @phpstan-ignore-next-line
+                array_merge_recursive($testResultSum->testRunnerTriggeredIssueDeprecationEvents(), $testResult->testRunnerTriggeredIssueDeprecationEvents()),
+                // @phpstan-ignore-next-line
+                array_merge_recursive($testResultSum->testRunnerTriggeredIssueErrorEvents(), $testResult->testRunnerTriggeredIssueErrorEvents()),
+                // @phpstan-ignore-next-line
+                array_merge_recursive($testResultSum->testRunnerTriggeredIssueNoticeEvents(), $testResult->testRunnerTriggeredIssueNoticeEvents()),
+                // @phpstan-ignore-next-line
+                array_merge_recursive($testResultSum->testRunnerTriggeredIssuePhpDeprecationEvents(), $testResult->testRunnerTriggeredIssuePhpDeprecationEvents()),
+                // @phpstan-ignore-next-line
+                array_merge_recursive($testResultSum->testRunnerTriggeredIssuePhpNoticeEvents(), $testResult->testRunnerTriggeredIssuePhpNoticeEvents()),
+                // @phpstan-ignore-next-line
+                array_merge_recursive($testResultSum->testRunnerTriggeredIssuePhpWarningEvents(), $testResult->testRunnerTriggeredIssuePhpWarningEvents()),
+                // @phpstan-ignore-next-line
+                array_merge_recursive($testResultSum->testRunnerTriggeredIssueWarningEvents(), $testResult->testRunnerTriggeredIssueWarningEvents()),
+                // @phpstan-ignore-next-line
                 array_merge_recursive($testResultSum->errors(), $testResult->errors()),
                 // @phpstan-ignore-next-line
                 array_merge_recursive($testResultSum->deprecations(), $testResult->deprecations()),
@@ -373,8 +459,15 @@ final class WrapperRunner implements RunnerInterface
             $testResultSum->testRunnerTriggeredNoticeEvents(),
             array_values(array_filter(
                 $testResultSum->testRunnerTriggeredWarningEvents(),
-                fn (WarningTriggered $event): bool => ! str_contains($event->message(), 'No tests found')
+                fn (WarningTriggered $event): bool => ! str_contains($event->message(), 'No tests found in class')
             )),
+            $testResultSum->testRunnerTriggeredIssueDeprecationEvents(),
+            $testResultSum->testRunnerTriggeredIssueErrorEvents(),
+            $testResultSum->testRunnerTriggeredIssueNoticeEvents(),
+            $testResultSum->testRunnerTriggeredIssuePhpDeprecationEvents(),
+            $testResultSum->testRunnerTriggeredIssuePhpNoticeEvents(),
+            $testResultSum->testRunnerTriggeredIssuePhpWarningEvents(),
+            $testResultSum->testRunnerTriggeredIssueWarningEvents(),
             $testResultSum->errors(),
             $testResultSum->deprecations(),
             $testResultSum->notices(),
@@ -385,6 +478,8 @@ final class WrapperRunner implements RunnerInterface
             $testResultSum->numberOfIssuesIgnoredByBaseline(),
         );
 
+        self::$result = $testResultSum;
+
         if ($this->options->configuration->cacheResult()) {
             $resultCacheSum = new DefaultResultCache($this->options->configuration->testResultCacheFile());
             foreach ($this->resultCacheFiles as $resultCacheFile) {
@@ -408,8 +503,11 @@ final class WrapperRunner implements RunnerInterface
 
         $exitcode = Result::exitCode($this->options->configuration, $testResultSum);
 
+        $this->clearFiles($this->statusFiles);
+        $this->clearFiles($this->progressFiles);
         $this->clearFiles($this->unexpectedOutputFiles);
         $this->clearFiles($this->testResultFiles);
+        $this->clearFiles($this->resultCacheFiles);
         $this->clearFiles($this->coverageFiles);
         $this->clearFiles($this->junitFiles);
         $this->clearFiles($this->teamcityFiles);
@@ -424,6 +522,20 @@ final class WrapperRunner implements RunnerInterface
             return;
         }
 
+        $missingCoverageFiles = [];
+
+        foreach ($this->requiredCoverageFiles as $filePath => $true) {
+            if (is_file($filePath) && filesize($filePath) !== 0) {
+                continue;
+            }
+
+            $missingCoverageFiles[] = $filePath;
+        }
+
+        if ($missingCoverageFiles !== []) {
+            throw MissingResultsException::create($missingCoverageFiles, 'coverage');
+        }
+
         $coverageManager = new CodeCoverage;
         $coverageManager->init(
             $this->options->configuration,
@@ -439,10 +551,33 @@ final class WrapperRunner implements RunnerInterface
 
             return;
         }
-        $coverageMerger = new CoverageMerger($coverageManager->codeCoverage());
-        foreach ($this->coverageFiles as $coverageFile) {
-            $coverageMerger->addCoverageFromFile($coverageFile);
+        $coverageFiles = [];
+        foreach ($this->coverageFiles as $fileInfo) {
+            $realPath = $fileInfo->getRealPath();
+            if ($realPath !== false && $realPath !== '') {
+                $coverageFiles[] = $realPath;
+            }
         }
+        $serializedCoverage = (new Merger)->merge($coverageFiles);
+
+        $report = (new Builder(new FileAnalyser(new ParsingSourceAnalyser, false, false)))->build(
+            $serializedCoverage['codeCoverage'],
+            $serializedCoverage['testResults'],
+            $serializedCoverage['basePath'],
+        );
+        $codeCoverage = $coverageManager->codeCoverage();
+        $codeCoverage->excludeUncoveredFiles();
+
+        $mergedData = $serializedCoverage['codeCoverage'];
+        $basePath = $serializedCoverage['basePath'];
+        if ($basePath !== '') {
+            foreach ($mergedData->coveredFiles() as $relativePath) {
+                $mergedData->renameFile($relativePath, $basePath.DIRECTORY_SEPARATOR.$relativePath);
+            }
+        }
+        $codeCoverage->setData($mergedData);
+        $codeCoverage->setTests($serializedCoverage['testResults']);
+        (new ReflectionProperty(\SebastianBergmann\CodeCoverage\CodeCoverage::class, 'cachedReport'))->setValue($codeCoverage, $report);
 
         $coverageManager->generateReports(
             $this->printer->printer,
@@ -483,15 +618,61 @@ final class WrapperRunner implements RunnerInterface
      */
     private function getTestFiles(SuiteLoader $suiteLoader): array
     {
-        /** @var array<string, non-empty-string> $files */
-        $files = [
-            ...array_values(array_filter(
-                $suiteLoader->tests,
-                fn (string $filename): bool => ! str_ends_with($filename, "eval()'d code")
-            )),
-            ...TestSuite::getInstance()->tests->getFilenames(),
-        ];
+        /** @var array<string, null> $files */
+        $files = [];
 
-        return $files; // @phpstan-ignore-line
+        foreach (array_filter(
+            $suiteLoader->tests,
+            fn (string $filename): bool => ! str_ends_with($filename, "eval()'d code")
+        ) as $filename) {
+            $resolved = realpath($filename) ?: $filename;
+            $files[$resolved] = null;
+        }
+
+        foreach (TestSuite::getInstance()->tests->getFilenames() as $filename) {
+            if ($this->shouldIncludeBootstrappedTestFile($filename)) {
+                $resolved = realpath($filename)
+                    ?: realpath($this->options->cwd.DIRECTORY_SEPARATOR.$filename)
+                    ?: $filename;
+                $files[$resolved] = null;
+            }
+        }
+
+        return array_keys($files); // @phpstan-ignore-line
+    }
+
+    private function shouldIncludeBootstrappedTestFile(string $filename): bool
+    {
+        if (! $this->options->configuration->hasCliArguments()) {
+            return true;
+        }
+
+        $resolvedFilename = realpath($filename);
+
+        if ($resolvedFilename === false) {
+            $resolvedFilename = realpath($this->options->cwd.DIRECTORY_SEPARATOR.$filename);
+        }
+
+        if ($resolvedFilename === false) {
+            return false;
+        }
+
+        foreach ($this->options->configuration->cliArguments() as $path) {
+            $resolvedPath = realpath($path);
+
+            if ($resolvedPath === false) {
+                continue;
+            }
+
+            if ($resolvedFilename === $resolvedPath) {
+                return true;
+            }
+
+            if (is_dir($resolvedPath) && str_starts_with($resolvedFilename, $resolvedPath.DIRECTORY_SEPARATOR)) {
+                return true;
+            }
+        }
+
+        return false;
     }
 }

src/Plugins/Parallel/Support/CompactPrinter.php

@@ -7,6 +7,7 @@ namespace Pest\Plugins\Parallel\Support;
 use NunoMaduro\Collision\Adapters\Phpunit\State;
 use NunoMaduro\Collision\Adapters\Phpunit\Style;
 use ParaTest\Options;
+use PHPUnit\Event\Telemetry\CpuTime;
 use PHPUnit\Event\Telemetry\GarbageCollectorStatus;
 use PHPUnit\Event\Telemetry\HRTime;
 use PHPUnit\Event\Telemetry\Info;
@@ -62,12 +63,12 @@ final class CompactPrinter
     /**
      * Creates a new instance of the Compact Printer.
      */
-    public static function default(): self
+    public static function default(bool $decorated = true): self
     {
         return new self(
             terminal(),
-            new ConsoleOutput(decorated: true),
-            new Style(new ConsoleOutput(decorated: true)),
+            new ConsoleOutput(decorated: $decorated),
+            new Style(new ConsoleOutput(decorated: $decorated)),
             terminal()->width() - 4,
         );
     }
@@ -147,11 +148,20 @@ final class CompactPrinter
                 MemoryUsage::fromBytes(0),
                 MemoryUsage::fromBytes(0),
                 $garbageCollectorStatus,
+                CpuTime::fromSecondsAndNanoseconds(0, 0),
+                CpuTime::fromSecondsAndNanoseconds(0, 0),
+                CpuTime::fromSecondsAndNanoseconds(0, 0),
             ),
             $telemetryDuration,
             MemoryUsage::fromBytes(0),
             \PHPUnit\Event\Telemetry\Duration::fromSecondsAndNanoseconds(0, 0),
             MemoryUsage::fromBytes(0),
+            CpuTime::fromSecondsAndNanoseconds(0, 0),
+            CpuTime::fromSecondsAndNanoseconds(0, 0),
+            CpuTime::fromSecondsAndNanoseconds(0, 0),
+            CpuTime::fromSecondsAndNanoseconds(0, 0),
+            CpuTime::fromSecondsAndNanoseconds(0, 0),
+            CpuTime::fromSecondsAndNanoseconds(0, 0),
         );
 
         $this->style->writeRecap($state, $telemetry, $testResult);

src/Plugins/Shard.php

@@ -6,7 +6,13 @@ namespace Pest\Plugins;
 
 use Pest\Contracts\Plugins\AddsOutput;
 use Pest\Contracts\Plugins\HandlesArguments;
+use Pest\Contracts\Plugins\Terminable;
 use Pest\Exceptions\InvalidOption;
+use Pest\Subscribers\EnsureShardTimingFinished;
+use Pest\Subscribers\EnsureShardTimingsAreCollected;
+use Pest\Subscribers\EnsureShardTimingStarted;
+use Pest\TestSuite;
+use PHPUnit\Event;
 use Symfony\Component\Console\Input\ArgvInput;
 use Symfony\Component\Console\Input\InputInterface;
 use Symfony\Component\Console\Output\OutputInterface;
@@ -15,12 +21,19 @@ use Symfony\Component\Process\Process;
 /**
  * @internal
  */
-final class Shard implements AddsOutput, HandlesArguments
+final class Shard implements AddsOutput, HandlesArguments, Terminable
 {
     use Concerns\HandleArguments;
 
     private const string SHARD_OPTION = 'shard';
 
+    /**
+     * The maximum length allowed for the filter argument.
+     * While ARG_MAX can be 2MB, individual arguments are often limited to 128KB (MAX_ARG_STRLEN).
+     * Practical limits in CI environments (like Docker or pipeline runners) can be even lower.
+     */
+    private const int MAX_FILTER_LENGTH = 32768;
+
     /**
      * The shard index and total number of shards.
      *
@@ -33,6 +46,40 @@ final class Shard implements AddsOutput, HandlesArguments
      */
     private static ?array $shard = null;
 
+    /**
+     * Whether to update the shards.json file.
+     */
+    private static bool $updateShards = false;
+
+    /**
+     * Whether time-balanced sharding was used.
+     */
+    private static bool $timeBalanced = false;
+
+    /**
+     * Whether the shards.json file is outdated.
+     */
+    private static bool $shardsOutdated = false;
+
+    /**
+     * Whether the test suite passed.
+     */
+    private static bool $passed = false;
+
+    /**
+     * Collected timings from workers or subscribers.
+     *
+     * @var array<string, float>|null
+     */
+    private static ?array $collectedTimings = null;
+
+    /**
+     * The canonical list of test classes from --list-tests.
+     *
+     * @var list<string>|null
+     */
+    private static ?array $knownTests = null;
+
     /**
      * Creates a new Plugin instance.
      */
@@ -47,6 +94,19 @@ final class Shard implements AddsOutput, HandlesArguments
      */
     public function handleArguments(array $arguments): array
     {
+        if ($this->hasArgument('--update-shards', $arguments)) {
+            return $this->handleUpdateShards($arguments);
+        }
+
+        if (Parallel::isWorker() && Parallel::getGlobal('UPDATE_SHARDS') === true) {
+            self::$updateShards = true;
+
+            Event\Facade::instance()->registerSubscriber(new EnsureShardTimingStarted);
+            Event\Facade::instance()->registerSubscriber(new EnsureShardTimingFinished);
+
+            return $arguments;
+        }
+
         if (! $this->hasArgument('--shard', $arguments)) {
             return $arguments;
         }
@@ -63,7 +123,25 @@ final class Shard implements AddsOutput, HandlesArguments
 
         /** @phpstan-ignore-next-line */
         $tests = $this->allTests($arguments);
-        $testsToRun = (array_chunk($tests, max(1, (int) ceil(count($tests) / $total))))[$index - 1] ?? [];
+
+        $timings = $this->loadShardsFile();
+        if ($timings !== null) {
+            $knownTests = array_values(array_filter($tests, fn (string $test): bool => isset($timings[$test])));
+            $newTests = array_values(array_diff($tests, $knownTests));
+
+            $partitions = $this->partitionByTime($knownTests, $timings, $total);
+
+            foreach ($newTests as $i => $test) {
+                $partitions[$i % $total][] = $test;
+            }
+
+            $testsToRun = $partitions[$index - 1] ?? [];
+            self::$timeBalanced = true;
+            self::$shardsOutdated = $newTests !== [];
+        } else {
+            $isInCurrentShard = fn (int $key): bool => $key % $total === ($index - 1);
+            $testsToRun = array_values(array_filter($tests, $isInCurrentShard, ARRAY_FILTER_USE_KEY));
+        }
 
         self::$shard = [
             'index' => $index,
@@ -72,7 +150,45 @@ final class Shard implements AddsOutput, HandlesArguments
             'testsCount' => count($tests),
         ];
 
-        return [...$arguments, '--filter', $this->buildFilterArgument($testsToRun)];
+        if ($testsToRun === []) {
+            return $arguments;
+        }
+
+        $filter = $this->buildFilterArgument($testsToRun);
+
+        $this->ensureFilterLengthIsSafe($filter);
+
+        return [...$arguments, '--filter', $filter];
+    }
+
+    /**
+     * Handles the --update-shards argument.
+     *
+     * @param  array<int, string>  $arguments
+     * @return array<int, string>
+     */
+    private function handleUpdateShards(array $arguments): array
+    {
+        if ($this->hasArgument('--shard', $arguments)) {
+            throw new InvalidOption('The [--update-shards] option cannot be combined with [--shard].');
+        }
+
+        $arguments = $this->popArgument('--update-shards', $arguments);
+
+        self::$updateShards = true;
+
+        /** @phpstan-ignore-next-line */
+        self::$knownTests = $this->allTests($arguments);
+
+        if ($this->hasArgument('--parallel', $arguments) || $this->hasArgument('-p', $arguments)) {
+            Parallel::setGlobal('UPDATE_SHARDS', true);
+            Parallel::setGlobal('SHARD_RUN_ID', uniqid('pest-shard-', true));
+        } else {
+            Event\Facade::instance()->registerSubscriber(new EnsureShardTimingStarted);
+            Event\Facade::instance()->registerSubscriber(new EnsureShardTimingFinished);
+        }
+
+        return $arguments;
     }
 
     /**
@@ -83,15 +199,14 @@ final class Shard implements AddsOutput, HandlesArguments
      */
     private function allTests(array $arguments): array
     {
-        $output = (new Process([
-            'php',
-            ...$this->removeParallelArguments($arguments),
-            '--list-tests',
-        ]))->mustRun()->getOutput();
+        $command = $this->buildListTestsCommand(
+            $arguments,
+            TestSuite::getInstance()->testPath,
+        );
 
-        preg_match_all('/ - (?:P\\\\)?(Tests\\\\[^:]+)::/', $output, $matches);
+        $output = new Process($command)->setTimeout(120)->mustRun()->getOutput();
 
-        return array_values(array_unique($matches[1]));
+        return $this->parseListTestsOutput($output);
     }
 
     /**
@@ -100,15 +215,97 @@ final class Shard implements AddsOutput, HandlesArguments
      */
     private function removeParallelArguments(array $arguments): array
     {
-        return array_filter($arguments, fn (string $argument): bool => ! in_array($argument, ['--parallel', '-p'], strict: true));
+        return array_values(array_filter(
+            $arguments,
+            fn (string $argument): bool => ! in_array($argument, ['--parallel', '-p'], strict: true)
+                && ! str_starts_with($argument, '--processes'),
+        ));
+    }
+
+    /**
+     * Builds the subprocess command used to enumerate tests via `--list-tests`.
+     *
+     * @param  list<string>  $arguments
+     * @return list<string>
+     */
+    private function buildListTestsCommand(array $arguments, string $testPath): array
+    {
+        $filtered = $this->removeParallelArguments($arguments);
+
+        return ['php', ...$filtered, '--test-directory='.$testPath, '--list-tests'];
+    }
+
+    /**
+     * Parses `--list-tests` output into a unique list of test class FQCNs.
+     *
+     * @return list<string>
+     */
+    private function parseListTestsOutput(string $output): array
+    {
+        preg_match_all('/ - (?:P\\\\)?([A-Za-z_]\w*(?:\\\\[A-Za-z_]\w*)*)::/', $output, $matches);
+
+        return array_values(array_unique($matches[1]));
     }
 
     /**
      * Builds the filter argument for the given tests to run.
+     *
+     * @param  array<int, string>  $testsToRun
      */
-    private function buildFilterArgument(mixed $testsToRun): string
+    private function buildFilterArgument(array $testsToRun): string
     {
-        return addslashes(implode('|', $testsToRun));
+        if ($testsToRun === []) {
+            return '';
+        }
+
+        /** @var array<string, mixed> $tree */
+        $tree = [];
+        foreach ($testsToRun as $class) {
+            $parts = explode('\\', $class);
+            $current = &$tree;
+            foreach ($parts as $part) {
+                if (! isset($current[$part])) {
+                    $current[$part] = [];
+                }
+                $current = &$current[$part];
+            }
+        }
+
+        $buildRegex = function (array $tree) use (&$buildRegex): string {
+            $parts = [];
+            foreach ($tree as $key => $sub) {
+                $subRegex = $buildRegex($sub);
+                if ($subRegex === '') {
+                    $parts[] = preg_quote($key, '/');
+                } else {
+                    $parts[] = preg_quote($key, '/').'\\\\'.(count($sub) > 1 ? '('.$subRegex.')' : $subRegex);
+                }
+            }
+
+            return implode('|', $parts);
+        };
+
+        return $buildRegex($tree);
+    }
+
+    /**
+     * Ensures that the filter length is safe for the current environment.
+     *
+     * @throws InvalidOption
+     */
+    private function ensureFilterLengthIsSafe(string $filter): void
+    {
+        $maxLength = (int) (getenv('PEST_SHARD_MAX_FILTER_LENGTH') ?: self::MAX_FILTER_LENGTH);
+
+        if (strlen($filter) > $maxLength) {
+            throw new InvalidOption(sprintf(
+                'The generated filter for this shard is too long (%d characters). '.
+                'This can cause issues with some environments (limit is %d characters). '.
+                'Please increase the number of shards (e.g., use 1/4 instead of 1/2) to reduce the filter length.',
+                strlen($filter),
+                $maxLength
+            ));
+        }
     }
 
     /**
@@ -116,6 +313,22 @@ final class Shard implements AddsOutput, HandlesArguments
      */
     public function addOutput(int $exitCode): int
     {
+        self::$passed = $exitCode === 0;
+
+        if (self::$updateShards && self::$passed && ! Parallel::isWorker()) {
+            self::$collectedTimings = $this->collectTimings();
+
+            $count = self::$knownTests !== null
+                ? count(array_intersect_key(self::$collectedTimings, array_flip(self::$knownTests)))
+                : count(self::$collectedTimings);
+
+            $this->output->writeln(sprintf(
+                '  <fg=gray>Shards:</>   <fg=default>shards.json updated with timings for %d test class%s.</>',
+                $count,
+                $count === 1 ? '' : 'es',
+            ));
+        }
+
         if (self::$shard === null) {
             return $exitCode;
         }
@@ -128,17 +341,250 @@ final class Shard implements AddsOutput, HandlesArguments
         ] = self::$shard;
 
         $this->output->writeln(sprintf(
-            '  <fg=gray>Shard:</>    <fg=default>%d of %d</> — %d file%s ran, out of %d.',
+            '  <fg=gray>Shard:</>    <fg=default>%d of %d</> — %d file%s ran, out of %d%s.',
             $index,
             $total,
             $testsRan,
             $testsRan === 1 ? '' : 's',
             $testsCount,
+            self::$timeBalanced ? ' <fg=gray>(time-balanced)</>' : '',
         ));
 
+        if (self::$shardsOutdated) {
+            $this->output->writeln('  <fg=yellow;options=bold>WARN</>  <fg=default>The [tests/.pest/shards.json] file is out of date. Run [--update-shards] to update it.</>');
+        }
+
         return $exitCode;
     }
 
+    /**
+     * Terminates the plugin.
+     */
+    public function terminate(): void
+    {
+        if (! self::$updateShards) {
+            return;
+        }
+
+        if (Parallel::isWorker()) {
+            $this->writeWorkerTimings();
+
+            return;
+        }
+
+        if (! self::$passed) {
+            return;
+        }
+
+        $timings = self::$collectedTimings ?? $this->collectTimings();
+
+        if ($timings === []) {
+            return;
+        }
+
+        $this->writeTimings($timings);
+    }
+
+    /**
+     * Collects timings from subscribers or worker temp files.
+     *
+     * @return array<string, float>
+     */
+    private function collectTimings(): array
+    {
+        $runId = Parallel::getGlobal('SHARD_RUN_ID');
+
+        if (is_string($runId)) {
+            return $this->readWorkerTimings($runId);
+        }
+
+        return EnsureShardTimingsAreCollected::timings();
+    }
+
+    /**
+     * Writes the current worker's timing data to a temp file.
+     */
+    private function writeWorkerTimings(): void
+    {
+        $timings = EnsureShardTimingsAreCollected::timings();
+
+        if ($timings === []) {
+            return;
+        }
+
+        $runId = Parallel::getGlobal('SHARD_RUN_ID');
+
+        if (! is_string($runId)) {
+            return;
+        }
+
+        $path = sys_get_temp_dir().DIRECTORY_SEPARATOR.'__pest_sharding_'.$runId.'-'.getmypid().'.json';
+
+        file_put_contents($path, json_encode($timings, JSON_THROW_ON_ERROR));
+    }
+
+    /**
+     * Reads and merges timing data from all worker temp files.
+     *
+     * @return array<string, float>
+     */
+    private function readWorkerTimings(string $runId): array
+    {
+        $pattern = sys_get_temp_dir().DIRECTORY_SEPARATOR.'__pest_sharding_'.$runId.'-*.json';
+        $files = glob($pattern);
+
+        if ($files === false || $files === []) {
+            return [];
+        }
+
+        $merged = [];
+
+        foreach ($files as $file) {
+            $contents = file_get_contents($file);
+
+            if ($contents === false) {
+                continue;
+            }
+
+            $timings = json_decode($contents, true);
+
+            if (is_array($timings)) {
+                $merged = array_merge($merged, $timings);
+            }
+
+            unlink($file);
+        }
+
+        return $merged;
+    }
+
+    /**
+     * Returns the path to shards.json.
+     */
+    private function shardsPath(): string
+    {
+        $testSuite = TestSuite::getInstance();
+
+        return implode(DIRECTORY_SEPARATOR, [$testSuite->rootPath, $testSuite->testPath, '.pest', 'shards.json']);
+    }
+
+    /**
+     * Loads the timings from shards.json.
+     *
+     * @return array<string, float>|null
+     */
+    private function loadShardsFile(): ?array
+    {
+        $path = $this->shardsPath();
+
+        if (! file_exists($path)) {
+            return null;
+        }
+
+        $contents = file_get_contents($path);
+
+        if ($contents === false) {
+            throw new InvalidOption('The [tests/.pest/shards.json] file could not be read. Delete it or run [--update-shards] to regenerate.');
+        }
+
+        $data = json_decode($contents, true);
+
+        if (! is_array($data) || ! isset($data['timings']) || ! is_array($data['timings'])) {
+            throw new InvalidOption('The [tests/.pest/shards.json] file is corrupted. Delete it or run [--update-shards] to regenerate.');
+        }
+
+        return $data['timings'];
+    }
+
+    /**
+     * Partitions tests across shards using the LPT (Longest Processing Time) algorithm.
+     *
+     * @param  list<string>  $tests
+     * @param  array<string, float>  $timings
+     * @return list<list<string>>
+     */
+    private function partitionByTime(array $tests, array $timings, int $total): array
+    {
+        $knownTimings = array_filter(
+            array_map(fn (string $test): ?float => $timings[$test] ?? null, $tests),
+            fn (?float $t): bool => $t !== null,
+        );
+
+        $median = $knownTimings !== [] ? $this->median(array_values($knownTimings)) : 1.0;
+
+        $testsWithTimings = array_map(
+            fn (string $test): array => ['test' => $test, 'time' => $timings[$test] ?? $median],
+            $tests,
+        );
+
+        usort($testsWithTimings, fn (array $a, array $b): int => $b['time'] <=> $a['time']);
+
+        /** @var list<list<string>> */
+        $bins = array_fill(0, $total, []);
+        /** @var non-empty-list<float> */
+        $binTimes = array_fill(0, $total, 0.0);
+
+        foreach ($testsWithTimings as $item) {
+            $minIndex = array_search(min($binTimes), $binTimes, strict: true);
+            assert(is_int($minIndex));
+
+            $bins[$minIndex][] = $item['test'];
+            $binTimes[$minIndex] += $item['time'];
+        }
+
+        return $bins;
+    }
+
+    /**
+     * Calculates the median of an array of floats.
+     *
+     * @param  list<float>  $values
+     */
+    private function median(array $values): float
+    {
+        sort($values);
+
+        $count = count($values);
+        $middle = (int) floor($count / 2);
+
+        if ($count % 2 === 0) {
+            return ($values[$middle - 1] + $values[$middle]) / 2;
+        }
+
+        return $values[$middle];
+    }
+
+    /**
+     * Writes the timings to shards.json.
+     *
+     * @param  array<string, float>  $timings
+     */
+    private function writeTimings(array $timings): void
+    {
+        $path = $this->shardsPath();
+
+        $directory = dirname($path);
+        if (! is_dir($directory)) {
+            mkdir($directory, 0755, true);
+        }
+
+        if (self::$knownTests !== null) {
+            $knownSet = array_flip(self::$knownTests);
+            $timings = array_intersect_key($timings, $knownSet);
+        }
+
+        ksort($timings);
+
+        $canonical = self::$knownTests ?? array_keys($timings);
+        sort($canonical);
+
+        file_put_contents($path, json_encode([
+            'timings' => $timings,
+            'checksum' => md5(implode("\n", $canonical)),
+            'updated_at' => date('c'),
+        ], JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES)."\n");
+    }
+
     /**
      * Returns the shard information.
      *

src/Plugins/Snapshot.php

@@ -5,7 +5,6 @@ declare(strict_types=1);
 namespace Pest\Plugins;
 
 use Pest\Contracts\Plugins\HandlesArguments;
-use Pest\Exceptions\InvalidOption;
 use Pest\TestSuite;
 
 /**
@@ -15,21 +14,116 @@ final class Snapshot implements HandlesArguments
 {
     use Concerns\HandleArguments;
 
+    /**
+     * Whether snapshots should be updated on this run.
+     */
+    public static bool $updateSnapshots = false;
+
     /**
      * {@inheritDoc}
      */
     public function handleArguments(array $arguments): array
     {
+        if (Parallel::isWorker() && Parallel::getGlobal('UPDATE_SNAPSHOTS') === true) {
+            self::$updateSnapshots = true;
+
+            return $arguments;
+        }
+
         if (! $this->hasArgument('--update-snapshots', $arguments)) {
             return $arguments;
         }
 
-        if ($this->hasArgument('--parallel', $arguments)) {
-            throw new InvalidOption('The [--update-snapshots] option is not supported when running in parallel.');
+        self::$updateSnapshots = true;
+
+        if ($this->isFullRun($arguments)) {
+            TestSuite::getInstance()->snapshots->flush();
         }
 
-        TestSuite::getInstance()->snapshots->flush();
+        if ($this->hasArgument('--parallel', $arguments) || $this->hasArgument('-p', $arguments)) {
+            Parallel::setGlobal('UPDATE_SNAPSHOTS', true);
+        }
 
         return $this->popArgument('--update-snapshots', $arguments);
     }
+
+    /**
+     * Options that take a value as the next argument (rather than via "=value").
+     *
+     * @var list<string>
+     */
+    private const array FLAGS_WITH_VALUES = [
+        '--filter',
+        '--group',
+        '--exclude-group',
+        '--test-suffix',
+        '--covers',
+        '--uses',
+        '--cache-directory',
+        '--cache-result-file',
+        '--configuration',
+        '--colors',
+        '--test-directory',
+        '--bootstrap',
+        '--order-by',
+        '--random-order-seed',
+        '--log-junit',
+        '--log-teamcity',
+        '--log-events-text',
+        '--log-events-verbose-text',
+        '--coverage-clover',
+        '--coverage-cobertura',
+        '--coverage-crap4j',
+        '--coverage-html',
+        '--coverage-php',
+        '--coverage-text',
+        '--coverage-xml',
+        '--assignee',
+        '--issue',
+        '--ticket',
+        '--pr',
+        '--pull-request',
+        '--retry',
+        '--shard',
+        '--repeat',
+    ];
+
+    /**
+     * Determines whether the command targets the entire suite (no filter, no path).
+     *
+     * @param  array<int, string>  $arguments
+     */
+    private function isFullRun(array $arguments): bool
+    {
+        if ($this->hasArgument('--filter', $arguments)) {
+            return false;
+        }
+
+        $tokens = array_slice($arguments, 1);
+        $skipNext = false;
+
+        foreach ($tokens as $arg) {
+            if ($skipNext) {
+                $skipNext = false;
+
+                continue;
+            }
+
+            if ($arg === '') {
+                continue;
+            }
+
+            if ($arg[0] === '-') {
+                if (in_array($arg, self::FLAGS_WITH_VALUES, true)) {
+                    $skipNext = true;
+                }
+
+                continue;
+            }
+
+            return false;
+        }
+
+        return true;
+    }
 }

src/Plugins/Tia/BaselineSync.php

@@ -0,0 +1,621 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest\Plugins\Tia;
+
+use Pest\Exceptions\BaselineFetchFailed;
+use Pest\Panic;
+use Pest\Plugins\Tia;
+use Pest\Plugins\Tia\Contracts\State;
+use Pest\Support\View;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\Process\Process;
+
+/**
+ * @internal
+ */
+final readonly class BaselineSync
+{
+    private const string WORKFLOW_FILE = 'tia-baseline.yml';
+
+    private const string ARTIFACT_NAME = 'pest-tia-baseline';
+
+    private const string GRAPH_ASSET = Tia::KEY_GRAPH;
+
+    private const string COVERAGE_ASSET = Tia::KEY_COVERAGE_CACHE;
+
+    private const string DOWNLOAD_CACHE_DIR = 'artifacts';
+
+    private const int DOWNLOAD_CACHE_MAX_ENTRIES = 5;
+
+    private const int FETCH_COOLDOWN_SECONDS = 86400;
+
+    private const array DIAGNOSES = [
+        'network' => [
+            'pattern' => '/could not resolve host|connection refused|connection reset|temporary failure in name resolution|network is unreachable|no route to host|i\/o timeout|tls handshake|getaddrinfo/i',
+            'message' => 'network error (offline or DNS unreachable). Try again when connected.',
+        ],
+        'gh-auth' => [
+            'pattern' => '/authentication failed|not logged in|requires authentication|bad credentials|401/i',
+            'message' => 'authentication failed — run `gh auth login` and retry.',
+        ],
+        'rate-limit' => [
+            'pattern' => '/rate limit|too many requests|secondary rate limit/i',
+            'message' => 'GitHub API rate limit hit — try again later.',
+        ],
+        'not-found' => [
+            'pattern' => '/404|not found|repository not found/i',
+            'message' => 'workflow or artifact not found in repo.',
+        ],
+        'forbidden' => [
+            'pattern' => '/403|forbidden|access denied/i',
+            'message' => 'access denied — check that your `gh` token has repo + actions read scope.',
+        ],
+    ];
+
+    public function __construct(
+        private State $state,
+        private OutputInterface $output,
+    ) {}
+
+    private function renderBadge(string $type, string $content): void
+    {
+        View::render('components.badge', ['type' => $type, 'content' => $content]);
+    }
+
+    private function renderChild(string $text): void
+    {
+        $this->output->writeln(sprintf('  <fg=gray>─ %s</>', $text));
+    }
+
+    public function fetchIfAvailable(string $projectRoot, bool $force = false, bool $hasAnchor = false): bool
+    {
+        $repo = $this->detectGitHubRepo($projectRoot);
+
+        if ($repo === null) {
+            return false;
+        }
+
+        if (! $force && ($remaining = $this->cooldownRemaining()) !== null) {
+            $this->renderBadge('WARN', sprintf(
+                'Last fetch found no baseline — next auto-retry in %s. Override with --refetch.',
+                $this->formatDuration($remaining),
+            ));
+
+            return false;
+        }
+
+        $result = $this->download($repo, $projectRoot, $hasAnchor);
+        $payload = $result['payload'];
+        $failureKind = $result['failureKind'];
+
+        if ($payload === null) {
+            if ($failureKind === 'no-runs' || $failureKind === null) {
+                $this->startCooldown();
+                $this->emitPublishInstructions();
+            }
+
+            return false;
+        }
+
+        if (! $this->state->write(Tia::KEY_GRAPH, $payload['graph'])) {
+            return false;
+        }
+
+        if ($payload['coverage'] !== null) {
+            $this->state->write(Tia::KEY_COVERAGE_CACHE, $payload['coverage']);
+        }
+
+        $this->clearCooldown();
+
+        return true;
+    }
+
+    private function cooldownRemaining(): ?int
+    {
+        $raw = $this->state->read(Tia::KEY_FETCH_COOLDOWN);
+
+        if ($raw === null) {
+            return null;
+        }
+
+        $decoded = json_decode($raw, true);
+
+        if (! is_array($decoded) || ! isset($decoded['until']) || ! is_int($decoded['until'])) {
+            return null;
+        }
+
+        $remaining = $decoded['until'] - time();
+
+        return $remaining > 0 ? $remaining : null;
+    }
+
+    private function startCooldown(): void
+    {
+        $this->state->write(Tia::KEY_FETCH_COOLDOWN, (string) json_encode([
+            'until' => time() + self::FETCH_COOLDOWN_SECONDS,
+        ]));
+    }
+
+    private function clearCooldown(): void
+    {
+        $this->state->delete(Tia::KEY_FETCH_COOLDOWN);
+    }
+
+    private function formatDuration(int $seconds): string
+    {
+        if ($seconds >= 3600) {
+            return (int) round($seconds / 3600).'h';
+        }
+
+        if ($seconds >= 60) {
+            return (int) round($seconds / 60).'m';
+        }
+
+        return $seconds.'s';
+    }
+
+    private function emitPublishInstructions(): void
+    {
+        if ($this->isCi()) {
+            $this->renderBadge('INFO', 'No baseline yet — this run will produce one.');
+
+            return;
+        }
+
+        $this->renderBadge('WARN', 'No baseline published yet — recording locally.');
+        $this->renderChild('See https://pestphp.com/docs/tia for how to publish one from CI.');
+    }
+
+    private function isCi(): bool
+    {
+        return getenv('GITHUB_ACTIONS') === 'true'
+            || getenv('GITLAB_CI') === 'true'
+            || getenv('CIRCLECI') === 'true';
+    }
+
+    private function detectGitHubRepo(string $projectRoot): ?string
+    {
+        $gitConfig = $projectRoot.DIRECTORY_SEPARATOR.'.git'.DIRECTORY_SEPARATOR.'config';
+
+        if (! is_file($gitConfig)) {
+            return null;
+        }
+
+        $content = @file_get_contents($gitConfig);
+
+        if ($content === false) {
+            return null;
+        }
+
+        if (preg_match('/\[remote "origin"\][^\[]*?url\s*=\s*(\S+)/s', $content, $match) !== 1) {
+            return null;
+        }
+
+        $url = $match[1];
+
+        if (preg_match('#^git@github\.com:([\w.-]+/[\w.-]+?)(?:\.git)?$#', $url, $m) === 1) {
+            return $m[1];
+        }
+
+        if (preg_match('#^https?://github\.com/([\w.-]+/[\w.-]+?)(?:\.git)?/?$#', $url, $m) === 1) {
+            return $m[1];
+        }
+
+        if (preg_match('#^ssh://(?:[^@/]+@)?github\.com(?::\d+)?/([\w.-]+/[\w.-]+?)(?:\.git)?/?$#i', $url, $m) === 1) {
+            return $m[1];
+        }
+
+        return null;
+    }
+
+    /**
+     * @return array{payload: array{graph: string, coverage: ?string, sizeOnDisk: int}|null, failureKind: ?string}
+     */
+    private function download(string $repo, string $projectRoot, bool $hasAnchor = false): array
+    {
+        $this->validateGhDependencies($hasAnchor);
+
+        [$runId, $listError] = $this->latestSuccessfulRunIdWithError($repo);
+
+        if ($listError !== null) {
+            $this->panicOnClassifiedError($listError, 'Failed to query baseline runs', $hasAnchor);
+
+            $this->renderBadge('WARN', sprintf(
+                'Failed to query baseline runs — %s',
+                $listError['message'],
+            ));
+
+            return ['payload' => null, 'failureKind' => $listError['kind']];
+        }
+
+        if ($runId === null) {
+            return ['payload' => null, 'failureKind' => 'no-runs'];
+        }
+
+        $runCacheDir = $this->downloadCacheDir($projectRoot).DIRECTORY_SEPARATOR.$this->safeRunId($runId);
+
+        if (is_file($runCacheDir.DIRECTORY_SEPARATOR.self::GRAPH_ASSET)) {
+            @touch($runCacheDir);
+
+            $this->renderChild(sprintf(
+                'Using cached baseline from %s (run %s).',
+                $repo,
+                $runId,
+            ));
+
+            return ['payload' => $this->readArtifact($runCacheDir), 'failureKind' => null];
+        }
+
+        if (! @mkdir($runCacheDir, 0755, true) && ! is_dir($runCacheDir)) {
+            return ['payload' => null, 'failureKind' => null];
+        }
+
+        $download = $this->downloadArtifact($repo, $runId, $runCacheDir, $hasAnchor);
+
+        if (! $download['success']) {
+            return ['payload' => null, 'failureKind' => $download['failureKind']];
+        }
+
+        $payload = $this->validateDownloadedArtifact($runCacheDir, $hasAnchor);
+
+        $this->trimDownloadCache($projectRoot);
+
+        return ['payload' => $payload, 'failureKind' => null];
+    }
+
+    /**
+     * @param  array{kind: string, message: string}  $diagnosis
+     */
+    private function panicOnClassifiedError(array $diagnosis, string $contextPrefix, bool $hasAnchor): void
+    {
+        if (! in_array($diagnosis['kind'], ['forbidden', 'not-found'], true)) {
+            return;
+        }
+
+        Panic::with(new BaselineFetchFailed(
+            sprintf('%s — %s', $contextPrefix, $diagnosis['message']),
+            'Verify workflow tia-baseline.yml, artifact pest-tia-baseline, and gh token scope.',
+            $hasAnchor,
+        ));
+    }
+
+    private function validateGhDependencies(bool $hasAnchor): void
+    {
+        if (! $this->commandExists('gh')) {
+            Panic::with(new BaselineFetchFailed(
+                'GitHub CLI (gh) not found — cannot fetch baseline.',
+                'Install it from https://cli.github.com.',
+                $hasAnchor,
+            ));
+        }
+
+        if (! $this->ghAuthenticated()) {
+            Panic::with(new BaselineFetchFailed(
+                'GitHub CLI (gh) is not authenticated — cannot fetch baseline.',
+                'Run `gh auth login` and retry.',
+                $hasAnchor,
+            ));
+        }
+    }
+
+    /**
+     * @return array{success: bool, failureKind: ?string}
+     */
+    private function downloadArtifact(string $repo, string $runId, string $runCacheDir, bool $hasAnchor): array
+    {
+        $artifactSize = $this->artifactSize($repo, $runId);
+
+        $this->output->writeln('');
+        $this->renderChild($artifactSize !== null
+            ? sprintf(
+                'Downloading TIA baseline (%s) from %s…',
+                $this->formatSize($artifactSize),
+                $repo,
+            )
+            : sprintf(
+                'Downloading TIA baseline from %s…',
+                $repo,
+            ));
+
+        $process = new Process([
+            'gh', 'run', 'download', $runId,
+            '-R', $repo,
+            '-n', self::ARTIFACT_NAME,
+            '-D', $runCacheDir,
+        ]);
+        $process->setTimeout(900.0);
+        $process->start();
+
+        $startedAt = microtime(true);
+        $tick = 0;
+
+        while ($process->isRunning()) {
+            $this->renderDownloadProgress($startedAt, $tick++);
+            usleep(120_000);
+        }
+
+        $process->wait();
+        $this->clearProgressLine();
+
+        if ($process->isSuccessful()) {
+            return ['success' => true, 'failureKind' => null];
+        }
+
+        $this->cleanup($runCacheDir);
+
+        $diagnosis = $this->classifyGhError($process->getErrorOutput().$process->getOutput());
+
+        $this->panicOnClassifiedError($diagnosis, 'Baseline download failed', $hasAnchor);
+
+        $this->renderBadge('WARN', sprintf(
+            'Baseline download failed — %s',
+            $diagnosis['message'],
+        ));
+
+        return ['success' => false, 'failureKind' => $diagnosis['kind']];
+    }
+
+    /**
+     * @return array{graph: string, coverage: ?string, sizeOnDisk: int}
+     */
+    private function validateDownloadedArtifact(string $runCacheDir, bool $hasAnchor): array
+    {
+        $payload = $this->readArtifact($runCacheDir);
+
+        if ($payload === null) {
+            $this->cleanup($runCacheDir);
+
+            Panic::with(new BaselineFetchFailed(
+                'Baseline downloaded but the artifact is missing expected files (graph.json).',
+                'Your CI publish step is broken — check the workflow that uploads pest-tia-baseline.',
+                $hasAnchor,
+            ));
+        }
+
+        return $payload;
+    }
+
+    private function artifactSize(string $repo, string $runId): ?int
+    {
+        $process = new Process([
+            'gh', 'api',
+            sprintf('repos/%s/actions/runs/%s/artifacts', $repo, $runId),
+            '--jq', sprintf(
+                '.artifacts[] | select(.name == "%s") | .size_in_bytes', // @pest-ignore-type
+                self::ARTIFACT_NAME,
+            ),
+        ]);
+        $process->setTimeout(30.0);
+        $process->run();
+
+        if (! $process->isSuccessful()) {
+            return null;
+        }
+
+        $size = trim($process->getOutput());
+
+        return is_numeric($size) ? (int) $size : null;
+    }
+
+    private function renderDownloadProgress(float $startedAt, int $tick): void
+    {
+        static $frames = ['⠋', '⠙', '⠹', '⠸', '⠼', '⠴', '⠦', '⠧', '⠇', '⠏'];
+
+        $elapsed = max(0.0, microtime(true) - $startedAt);
+        $frame = $frames[$tick % count($frames)];
+
+        $this->output->write(sprintf(
+            "\r\033[K    <fg=gray>%s %.1fs elapsed</>",
+            $frame,
+            $elapsed,
+        ));
+    }
+
+    private function clearProgressLine(): void
+    {
+        $this->output->write("\r\033[K");
+    }
+
+    private function dirSize(string $dir): int
+    {
+        if (! is_dir($dir)) {
+            return 0;
+        }
+
+        $total = 0;
+
+        $iterator = new \RecursiveIteratorIterator(
+            new \RecursiveDirectoryIterator($dir, \FilesystemIterator::SKIP_DOTS),
+        );
+
+        /** @var \SplFileInfo $entry */
+        foreach ($iterator as $entry) {
+            if ($entry->isFile()) {
+                $total += $entry->getSize();
+            }
+        }
+
+        return $total;
+    }
+
+    /**
+     * @return array{graph: string, coverage: ?string, sizeOnDisk: int}|null
+     */
+    private function readArtifact(string $dir): ?array
+    {
+        $graphPath = $dir.DIRECTORY_SEPARATOR.self::GRAPH_ASSET;
+        $coveragePath = $dir.DIRECTORY_SEPARATOR.self::COVERAGE_ASSET;
+
+        $graph = is_file($graphPath) ? @file_get_contents($graphPath) : false;
+
+        if ($graph === false) {
+            return null;
+        }
+
+        $coverage = is_file($coveragePath) ? @file_get_contents($coveragePath) : false;
+
+        return [
+            'graph' => $graph,
+            'coverage' => $coverage === false ? null : $coverage,
+            'sizeOnDisk' => $this->dirSize($dir),
+        ];
+    }
+
+    private function downloadCacheDir(string $projectRoot): string
+    {
+        return Storage::tempDir($projectRoot).DIRECTORY_SEPARATOR.self::DOWNLOAD_CACHE_DIR;
+    }
+
+    private function safeRunId(string $runId): string
+    {
+        $sanitised = preg_replace('/[^A-Za-z0-9_-]/', '', $runId) ?? '';
+
+        return $sanitised === '' ? 'unknown' : $sanitised;
+    }
+
+    private function trimDownloadCache(string $projectRoot): void
+    {
+        $root = $this->downloadCacheDir($projectRoot);
+
+        if (! is_dir($root)) {
+            return;
+        }
+
+        $entries = @scandir($root);
+
+        if ($entries === false) {
+            return;
+        }
+
+        $candidates = [];
+
+        foreach ($entries as $entry) {
+            if (in_array($entry, ['.', '..'], true)) {
+                continue;
+            }
+
+            $path = $root.DIRECTORY_SEPARATOR.$entry;
+
+            if (! is_dir($path)) {
+                continue;
+            }
+
+            $mtime = @filemtime($path);
+            $candidates[] = ['path' => $path, 'mtime' => $mtime === false ? 0 : $mtime];
+        }
+
+        if (count($candidates) <= self::DOWNLOAD_CACHE_MAX_ENTRIES) {
+            return;
+        }
+
+        usort(
+            $candidates,
+            static fn (array $a, array $b): int => $b['mtime'] <=> $a['mtime'],
+        );
+
+        foreach (array_slice($candidates, self::DOWNLOAD_CACHE_MAX_ENTRIES) as $stale) {
+            $this->cleanup($stale['path']);
+        }
+    }
+
+    /**
+     * @return array{0: ?string, 1: ?array{kind: string, message: string}}
+     */
+    private function latestSuccessfulRunIdWithError(string $repo): array
+    {
+        $process = new Process([
+            'gh', 'run', 'list',
+            '-R', $repo,
+            '--workflow', self::WORKFLOW_FILE,
+            '--status', 'success',
+            '--limit', '1',
+            '--json', 'databaseId',
+            '--jq', '.[0].databaseId // empty',
+        ]);
+        $process->setTimeout(30.0);
+        $process->run();
+
+        if (! $process->isSuccessful()) {
+            return [null, $this->classifyGhError($process->getErrorOutput().$process->getOutput())];
+        }
+
+        $runId = trim($process->getOutput());
+
+        return [$runId === '' ? null : $runId, null];
+    }
+
+    private function ghAuthenticated(): bool
+    {
+        $process = new Process(['gh', 'auth', 'status']);
+        $process->setTimeout(10.0);
+        $process->run();
+
+        return $process->isSuccessful();
+    }
+
+    /**
+     * @return array{kind: string, message: string}
+     */
+    private function classifyGhError(string $output): array
+    {
+        $output = trim($output);
+
+        if ($output === '') {
+            return ['kind' => 'unknown', 'message' => 'unknown error'];
+        }
+
+        foreach (self::DIAGNOSES as $kind => $diagnosis) {
+            if (preg_match($diagnosis['pattern'], $output) === 1) {
+                return ['kind' => $kind, 'message' => $diagnosis['message']];
+            }
+        }
+
+        return ['kind' => 'unknown', 'message' => trim(strtok($output, "\n"))];
+    }
+
+    private function commandExists(string $cmd): bool
+    {
+        $process = new Process(['which', $cmd]);
+        $process->run();
+
+        return $process->isSuccessful();
+    }
+
+    private function cleanup(string $dir): void
+    {
+        if (! is_dir($dir)) {
+            return;
+        }
+
+        $iterator = new \RecursiveIteratorIterator(
+            new \RecursiveDirectoryIterator($dir, \FilesystemIterator::SKIP_DOTS),
+            \RecursiveIteratorIterator::CHILD_FIRST,
+        );
+
+        /** @var \SplFileInfo $entry */
+        foreach ($iterator as $entry) {
+            if ($entry->isDir()) {
+                @rmdir($entry->getPathname());
+            } else {
+                @unlink($entry->getPathname());
+            }
+        }
+
+        @rmdir($dir);
+    }
+
+    private function formatSize(int $bytes): string
+    {
+        if ($bytes >= 1024 * 1024) {
+            return sprintf('%.1f MB', $bytes / 1024 / 1024);
+        }
+
+        if ($bytes >= 1024) {
+            return sprintf('%.1f KB', $bytes / 1024);
+        }
+
+        return $bytes.' B';
+    }
+}

src/Plugins/Tia/Bootstrapper.php

@@ -0,0 +1,28 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest\Plugins\Tia;
+
+use Pest\Contracts\Bootstrapper as BootstrapperContract;
+use Pest\Plugins\Tia\Contracts\State;
+use Pest\Support\Container;
+use Pest\TestSuite;
+
+/**
+ * @internal
+ */
+final readonly class Bootstrapper implements BootstrapperContract
+{
+    public function __construct(private Container $container) {}
+
+    public function boot(): void
+    {
+        $testSuite = $this->container->get(TestSuite::class);
+        assert($testSuite instanceof TestSuite);
+
+        $tempDir = Storage::tempDir($testSuite->rootPath);
+
+        $this->container->add(State::class, new FileState($tempDir));
+    }
+}

src/Plugins/Tia/ChangedFiles.php

@@ -0,0 +1,423 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest\Plugins\Tia;
+
+use Pest\Exceptions\MissingDependency;
+use Symfony\Component\Process\Process;
+
+/**
+ * @internal
+ */
+final readonly class ChangedFiles
+{
+    public function __construct(private string $projectRoot) {}
+
+    /**
+     * @param  array<int, string>  $files  project-relative paths.
+     * @param  array<string, string>  $lastRunTree  path → content hash from last run.
+     * @return array<int, string>
+     */
+    public function filterUnchangedSinceLastRun(array $files, array $lastRunTree): array
+    {
+        if ($lastRunTree === []) {
+            return $files;
+        }
+
+        $candidates = array_fill_keys($files, true);
+
+        foreach (array_keys($lastRunTree) as $snapshotted) {
+            $candidates[$snapshotted] = true;
+        }
+
+        $remaining = [];
+
+        foreach (array_keys($candidates) as $file) {
+            $snapshot = $lastRunTree[$file] ?? null;
+            $current = $this->currentHash($file);
+
+            if ($snapshot === null || $current === null || $current !== $snapshot) {
+                $remaining[] = $file;
+            }
+        }
+
+        return $remaining;
+    }
+
+    private function currentHash(string $relativePath): ?string
+    {
+        $absolute = $this->projectRoot.DIRECTORY_SEPARATOR.$relativePath;
+
+        if (! is_file($absolute)) {
+            return null;
+        }
+
+        $hash = ContentHash::of($absolute);
+
+        return $hash === false ? null : $hash;
+    }
+
+    /**
+     * @param  array<int, string>  $files
+     * @return array<string, string> path → xxh128 content hash
+     */
+    public function snapshotTree(array $files): array
+    {
+        $out = [];
+
+        foreach ($files as $file) {
+            $absolute = $this->projectRoot.DIRECTORY_SEPARATOR.$file;
+
+            if (! is_file($absolute)) {
+                $out[$file] = '';
+
+                continue;
+            }
+
+            $hash = ContentHash::of($absolute);
+
+            if ($hash !== false) {
+                $out[$file] = $hash;
+            }
+        }
+
+        return $out;
+    }
+
+    /**
+     * @return array<int, string>|null `null` when git is unavailable, or when
+     */
+    public function since(?string $sha): ?array
+    {
+        $files = [];
+
+        if ($sha !== null && $sha !== '') {
+            if (! $this->shaIsReachable($sha)) {
+                return null;
+            }
+
+            $files = array_merge($files, $this->diffSinceSha($sha));
+        }
+
+        $files = array_merge($files, $this->workingTreeChanges());
+
+        $unique = [];
+
+        foreach ($files as $file) {
+            if ($file === '') {
+                continue;
+            }
+            $unique[$file] = true;
+        }
+
+        $candidates = array_keys($this->filterIgnored($unique));
+
+        if ($sha !== null && $sha !== '') {
+            return $this->filterBehaviourallyUnchanged($candidates, $sha);
+        }
+
+        return $candidates;
+    }
+
+    /**
+     * @param  array<int, string>  $files
+     * @return array<int, string>
+     */
+    private function filterBehaviourallyUnchanged(array $files, string $sha): array
+    {
+        $remaining = [];
+
+        foreach ($files as $file) {
+            $currentHash = $this->currentHash($file);
+
+            if ($currentHash === null) {
+                $remaining[] = $file;
+
+                continue;
+            }
+
+            $baselineContent = $this->contentAtSha($sha, $file);
+
+            if ($baselineContent === null) {
+                $remaining[] = $file;
+
+                continue;
+            }
+
+            if ($currentHash !== ContentHash::ofContent($file, $baselineContent)) {
+                $remaining[] = $file;
+            }
+        }
+
+        return $remaining;
+    }
+
+    private function contentAtSha(string $sha, string $path): ?string
+    {
+        $process = new Process(['git', 'show', $sha.':'.$path], $this->projectRoot);
+        $process->setTimeout(5.0);
+        $process->run();
+
+        if (! $process->isSuccessful()) {
+            return null;
+        }
+
+        return $process->getOutput();
+    }
+
+    /**
+     * @param  array<string, true>  $candidates
+     * @return array<string, true>
+     */
+    private function filterIgnored(array $candidates): array
+    {
+        if ($candidates === []) {
+            return $candidates;
+        }
+
+        $process = new Process(
+            ['git', 'check-ignore', '--no-index', '-z', '--stdin'],
+            $this->projectRoot,
+        );
+        $process->setTimeout(5.0);
+        $process->setInput(implode("\x00", array_keys($candidates)));
+        $process->run();
+
+        $exitCode = $process->getExitCode();
+
+        if ($exitCode !== 0 && $exitCode !== 1) {
+            throw new MissingDependency('Tia mode', 'git');
+        }
+
+        $output = $process->getOutput();
+
+        if ($output === '') {
+            return $candidates;
+        }
+
+        foreach (explode("\x00", rtrim($output, "\x00")) as $ignored) {
+            if ($ignored !== '') {
+                unset($candidates[$ignored]);
+            }
+        }
+
+        return $candidates;
+    }
+
+    public function currentBranch(): ?string
+    {
+        $process = new Process(['git', 'rev-parse', '--abbrev-ref', 'HEAD'], $this->projectRoot);
+        $process->run();
+
+        if (! $process->isSuccessful()) {
+            throw new MissingDependency('Tia mode', 'git');
+        }
+
+        $branch = trim($process->getOutput());
+
+        return $branch === '' || $branch === 'HEAD' ? null : $branch;
+    }
+
+    public function defaultBranch(): ?string
+    {
+        $head = $this->gitOutput(['git', 'symbolic-ref', '--short', 'refs/remotes/origin/HEAD']);
+
+        if ($head !== null) {
+            $branch = preg_replace('#^origin/#', '', $head);
+
+            if (is_string($branch) && $branch !== '') {
+                return $branch;
+            }
+        }
+
+        $configured = $this->gitOutput(['git', 'config', '--get', 'init.defaultBranch']);
+
+        if ($configured === null) {
+            return null;
+        }
+
+        $exists = $this->gitOutput(['git', 'rev-parse', '--verify', '--quiet', 'refs/heads/'.$configured]) !== null
+            || $this->gitOutput(['git', 'rev-parse', '--verify', '--quiet', 'refs/remotes/origin/'.$configured]) !== null;
+
+        return $exists ? $configured : null;
+    }
+
+    /**
+     * Every branch name this checkout knows, local and remote alike. Remotes
+     * count: a branch that only lives on the origin is still a branch someone
+     * will check out, and its baseline must survive.
+     *
+     * @return list<string>|null `null` when git cannot answer.
+     */
+    public function branchNames(): ?array
+    {
+        $process = new Process(
+            ['git', 'for-each-ref', '--format=%(refname)', 'refs/heads', 'refs/remotes'],
+            $this->projectRoot,
+        );
+        $process->setTimeout(5.0);
+        $process->run();
+
+        if (! $process->isSuccessful()) {
+            return null;
+        }
+
+        $names = [];
+
+        foreach ($this->splitLines($process->getOutput()) as $ref) {
+            if (str_starts_with($ref, 'refs/heads/')) {
+                $names[substr($ref, strlen('refs/heads/'))] = true;
+
+                continue;
+            }
+
+            if (! str_starts_with($ref, 'refs/remotes/')) {
+                continue;
+            }
+
+            $tail = substr($ref, strlen('refs/remotes/'));
+            $slash = strpos($tail, '/');
+
+            if ($slash === false) {
+                continue;
+            }
+
+            $branch = substr($tail, $slash + 1);
+
+            if ($branch !== '' && $branch !== 'HEAD') {
+                $names[$branch] = true;
+            }
+        }
+
+        return array_keys($names);
+    }
+
+    public function hasRemote(): bool
+    {
+        return $this->gitOutput(['git', 'remote']) !== null;
+    }
+
+    /**
+     * @param  array<int, string>  $command
+     */
+    private function gitOutput(array $command): ?string
+    {
+        $process = new Process($command, $this->projectRoot);
+        $process->setTimeout(5.0);
+        $process->run();
+
+        if (! $process->isSuccessful()) {
+            return null;
+        }
+
+        $output = trim($process->getOutput());
+
+        return $output === '' ? null : $output;
+    }
+
+    private function shaIsReachable(string $sha): bool
+    {
+        $process = new Process(
+            ['git', 'merge-base', '--is-ancestor', $sha, 'HEAD'],
+            $this->projectRoot,
+        );
+        $process->run();
+
+        return $process->getExitCode() === 0;
+    }
+
+    /**
+     * @return array<int, string>
+     */
+    private function diffSinceSha(string $sha): array
+    {
+        $process = new Process(
+            ['git', 'diff', '--name-only', $sha.'..HEAD'],
+            $this->projectRoot,
+        );
+        $process->run();
+
+        if (! $process->isSuccessful()) {
+            throw new MissingDependency('Tia mode', 'git');
+        }
+
+        return $this->splitLines($process->getOutput());
+    }
+
+    /**
+     * @return array<int, string>
+     */
+    private function workingTreeChanges(): array
+    {
+        $process = new Process(
+            ['git', 'status', '--porcelain', '-z', '--untracked-files=all'],
+            $this->projectRoot,
+        );
+        $process->run();
+
+        if (! $process->isSuccessful()) {
+            throw new MissingDependency('Tia mode', 'git');
+        }
+
+        $output = $process->getOutput();
+
+        if ($output === '') {
+            return [];
+        }
+
+        $records = explode("\x00", rtrim($output, "\x00"));
+        $files = [];
+        $count = count($records);
+
+        for ($i = 0; $i < $count; $i++) {
+            $record = $records[$i];
+
+            if (strlen($record) < 4) {
+                continue;
+            }
+
+            $status = substr($record, 0, 2);
+            $path = substr($record, 3);
+
+            if ($status[0] === 'R' || $status[0] === 'C') {
+                $files[] = $path;
+
+                if (isset($records[$i + 1]) && $records[$i + 1] !== '') {
+                    $files[] = $records[$i + 1];
+                    $i++;
+                }
+
+                continue;
+            }
+
+            $files[] = $path;
+        }
+
+        return $files;
+    }
+
+    public function currentSha(): ?string
+    {
+        $process = new Process(['git', 'rev-parse', 'HEAD'], $this->projectRoot);
+        $process->run();
+
+        if (! $process->isSuccessful()) {
+            throw new MissingDependency('Tia mode', 'git');
+        }
+
+        $sha = trim($process->getOutput());
+
+        return $sha === '' ? null : $sha;
+    }
+
+    /**
+     * @return array<int, string>
+     */
+    private function splitLines(string $output): array
+    {
+        $lines = preg_split('/\R+/', trim($output), flags: PREG_SPLIT_NO_EMPTY);
+
+        return $lines === false ? [] : $lines;
+    }
+}

src/Plugins/Tia/CiDefaultBranch.php

@@ -0,0 +1,59 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest\Plugins\Tia;
+
+/**
+ * @internal
+ */
+final class CiDefaultBranch
+{
+    public static function detect(): ?string
+    {
+        return self::fromGitLab() ?? self::fromGitHubEvent();
+    }
+
+    private static function fromGitLab(): ?string
+    {
+        return self::environment('CI_DEFAULT_BRANCH');
+    }
+
+    private static function fromGitHubEvent(): ?string
+    {
+        $path = self::environment('GITHUB_EVENT_PATH');
+
+        if ($path === null || ! is_file($path) || ! is_readable($path)) {
+            return null;
+        }
+
+        $contents = @file_get_contents($path);
+
+        if ($contents === false) {
+            return null;
+        }
+
+        $payload = json_decode($contents, true);
+
+        if (! is_array($payload) || ! is_array($payload['repository'] ?? null)) {
+            return null;
+        }
+
+        $branch = $payload['repository']['default_branch'] ?? null;
+
+        return is_string($branch) && $branch !== '' ? $branch : null;
+    }
+
+    private static function environment(string $name): ?string
+    {
+        $value = getenv($name);
+
+        if (! is_string($value)) {
+            return null;
+        }
+
+        $value = trim($value);
+
+        return $value === '' ? null : $value;
+    }
+}

src/Plugins/Tia/Collectors.php

@@ -0,0 +1,28 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest\Plugins\Tia;
+
+use Pest\Plugins\Tia\Edges\BladeEdges;
+use Pest\Plugins\Tia\Edges\InertiaEdges;
+
+/**
+ * @internal
+ */
+final class Collectors
+{
+    /** @var list<class-string> */
+    private const array COLLECTORS = [
+        BladeEdges::class,
+        TableTracker::class,
+        InertiaEdges::class,
+    ];
+
+    public static function armAll(Recorder $recorder): void
+    {
+        foreach (self::COLLECTORS as $collector) {
+            $collector::arm($recorder);
+        }
+    }
+}

src/Plugins/Tia/Configuration.php

@@ -0,0 +1,87 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest\Plugins\Tia;
+
+use Pest\Support\Container;
+
+/**
+ * @internal
+ */
+final class Configuration
+{
+    /**
+     * @return $this
+     */
+    public function always(): self
+    {
+        /** @var WatchPatterns $watchPatterns */
+        $watchPatterns = Container::getInstance()->get(WatchPatterns::class);
+        $watchPatterns->markEnabled();
+
+        return $this;
+    }
+
+    /**
+     * @return $this
+     */
+    public function locally(): self
+    {
+        /** @var WatchPatterns $watchPatterns */
+        $watchPatterns = Container::getInstance()->get(WatchPatterns::class);
+        $watchPatterns->markEnabled();
+        $watchPatterns->markLocally();
+
+        return $this;
+    }
+
+    /**
+     * @return $this
+     */
+    public function filtered(): self
+    {
+        /** @var WatchPatterns $watchPatterns */
+        $watchPatterns = Container::getInstance()->get(WatchPatterns::class);
+        $watchPatterns->markFiltered();
+
+        return $this;
+    }
+
+    /**
+     * @return $this
+     */
+    public function baselined(): self
+    {
+        /** @var WatchPatterns $watchPatterns */
+        $watchPatterns = Container::getInstance()->get(WatchPatterns::class);
+        $watchPatterns->markBaselined();
+
+        return $this;
+    }
+
+    /**
+     * @return $this
+     */
+    public function defaultBranch(string $branch): self
+    {
+        /** @var WatchPatterns $watchPatterns */
+        $watchPatterns = Container::getInstance()->get(WatchPatterns::class);
+        $watchPatterns->setDefaultBranch($branch);
+
+        return $this;
+    }
+
+    /**
+     * @param  array<string, string>  $patterns  glob → project-relative test dir
+     * @return $this
+     */
+    public function watch(array $patterns): self
+    {
+        /** @var WatchPatterns $watchPatterns */
+        $watchPatterns = Container::getInstance()->get(WatchPatterns::class);
+        $watchPatterns->add($patterns);
+
+        return $this;
+    }
+}