diff --git a/src/Concerns/Testable.php b/src/Concerns/Testable.php
index 1fdda42d..beb9b2f1 100644
--- a/src/Concerns/Testable.php
+++ b/src/Concerns/Testable.php
@@ -274,24 +274,11 @@ trait Testable
         self::$__latestIssues = $method->issues;
         self::$__latestPrs = $method->prs;
 
-        // TIA replay short-circuit. Runs AFTER dataset/description/
-        // assignee metadata is populated so output and filtering still
-        // see the correct test name + tags on a cache hit, but BEFORE
-        // `parent::setUp()` and `beforeEach` so we skip the user's
-        // fixture setup (which is the whole point of replay — avoid
-        // paying for work whose outcome we already know).
         /** @var Tia $tia */
         $tia = Container::getInstance()->get(Tia::class);
         $cached = $tia->getCachedResult(self::$__filename, $this::class.'::'.$this->name());
 
         if ($cached !== null) {
-            // Risky has no public PHPUnit hook to replay as-risky, so we
-            // collapse it into Pass — the test doesn't misreport as a
-            // failure, at the cost of losing aggregate risky totals on
-            // replay (accepted until PHPUnit grows a programmatic
-            // risky-marker API). Skipped/Incomplete throw the matching
-            // PHPUnit exception so the runner marks the status exactly
-            // as it did on the recorded run.
             match (Replay::from($cached)) {
                 Replay::Pass => $this->__shortCircuitCachedPass(),
                 Replay::Skipped => $this->markTestSkipped($cached->message()),
diff --git a/src/Plugins/Tia.php b/src/Plugins/Tia.php
index ed8abbb6..b20b8781 100644
--- a/src/Plugins/Tia.php
+++ b/src/Plugins/Tia.php
@@ -357,14 +357,14 @@ final class Tia implements AddsOutput, HandlesArguments, Terminable
         $this->seedResultsInto($graph);
 
         if (! $this->saveGraph($graph)) {
-            $this->renderBadge('ERROR', 'TIA could not write the dependency graph.');
+            $this->renderBadge('ERROR', 'Could not write the dependency graph.');
             $recorder->reset();
 
             return;
         }
 
         $this->renderBadge('INFO', sprintf(
-            'TIA recorded the dependency graph (%d test file%s).',
+            'Recorded the dependency graph (%d test file%s).',
             count($perTest),
             count($perTest) === 1 ? '' : 's',
         ));
@@ -488,7 +488,7 @@ final class Tia implements AddsOutput, HandlesArguments, Terminable
                 return $exitCode;
             }
 
-            $this->renderBadge('ERROR', 'TIA recorded zero edges — coverage driver likely missing.');
+            $this->renderBadge('ERROR', 'Recorded zero edges — coverage driver likely missing.');
             $this->renderDetail('Install / enable pcov or xdebug (mode: coverage) in the worker PHP and retry.');
 
             return $exitCode;
@@ -504,13 +504,13 @@ final class Tia implements AddsOutput, HandlesArguments, Terminable
         }
 
         if (! $this->saveGraph($graph)) {
-            $this->renderBadge('ERROR', 'TIA could not write the dependency graph.');
+            $this->renderBadge('ERROR', 'Could not write the dependency graph.');
 
             return $exitCode;
         }
 
         $this->renderBadge('INFO', sprintf(
-            'TIA recorded the dependency graph (%d test file%s, %d worker partial%s).',
+            'Recorded the dependency graph (%d test file%s, %d worker partial%s).',
             count($finalised),
             count($finalised) === 1 ? '' : 's',
             count($partialKeys),
@@ -536,8 +536,8 @@ final class Tia implements AddsOutput, HandlesArguments, Terminable
         if (! Fingerprint::structuralMatches($stored, $current)) {
             $drift = Fingerprint::structuralDrift($stored, $current);
 
-            $this->renderBadge('WARN', sprintf(
-                'TIA graph structure outdated (%s).',
+            $this->renderBadge('INFO', sprintf(
+                'Graph structure outdated (%s).',
                 $this->formatStructuralDrift($drift),
             ));
 
@@ -560,7 +560,7 @@ final class Tia implements AddsOutput, HandlesArguments, Terminable
                 return $this->reconcileFingerprint($rebuilt, $current);
             }
 
-            $this->renderBadge('WARN', 'TIA rebuilding graph from scratch.');
+            $this->renderBadge('WARN', 'Rebuilding graph from scratch.');
 
             $this->state->delete(self::KEY_GRAPH);
             $this->state->delete(self::KEY_COVERAGE_CACHE);
@@ -572,7 +572,7 @@ final class Tia implements AddsOutput, HandlesArguments, Terminable
 
         if ($drift !== []) {
             $this->renderBadge('WARN', sprintf(
-                'TIA env differs from baseline (%s) — results dropped, edges reused.',
+                'Env differs from baseline (%s) — results dropped, edges reused.',
                 implode(', ', $drift),
             ));
 
@@ -621,7 +621,7 @@ final class Tia implements AddsOutput, HandlesArguments, Terminable
             if ($changedFiles->gitAvailable()
                 && $branchSha !== null
                 && $changedFiles->since($branchSha) === null) {
-                $this->renderBadge('WARN', 'TIA recorded commit is no longer reachable — graph will be rebuilt.');
+                $this->renderBadge('WARN', 'Recorded commit is no longer reachable — graph will be rebuilt.');
                 $graph = null;
             }
         }
@@ -794,7 +794,7 @@ final class Tia implements AddsOutput, HandlesArguments, Terminable
         $changedFiles = new ChangedFiles($projectRoot);
 
         if (! $changedFiles->gitAvailable()) {
-            $this->renderBadge('WARN', 'TIA git unavailable — running full suite.');
+            $this->renderBadge('WARN', 'Git unavailable — running full suite.');
 
             return $arguments;
         }
@@ -811,9 +811,9 @@ final class Tia implements AddsOutput, HandlesArguments, Terminable
         $coverageAvailable = $this->piggybackCoverage || $this->recorder->driverAvailable();
 
         if ($hasProjectPhpSourceChanges && ! $coverageAvailable) {
-            $this->renderBadge('WARN', 'TIA detected PHP source changes but no coverage driver is available.');
+            $this->renderBadge('WARN', 'Detected PHP source changes but no coverage driver is available.');
             $this->renderDetail('Running the full suite to avoid using a stale dependency graph.');
-            $this->renderDetail('Install / enable pcov or xdebug (mode: coverage) so TIA can safely refresh edges after PHP refactors.');
+            $this->renderDetail('Install / enable pcov or xdebug (mode: coverage) so edges can be safely refreshed after PHP refactors.');
 
             return $arguments;
         }
@@ -867,7 +867,7 @@ final class Tia implements AddsOutput, HandlesArguments, Terminable
         }
 
         if (! $this->persistAffectedSet($affected)) {
-            $this->renderBadge('ERROR', 'TIA could not persist affected set — running full suite.');
+            $this->renderBadge('ERROR', 'Could not persist affected set — running full suite.');
 
             return $arguments;
         }
@@ -1013,9 +1013,9 @@ final class Tia implements AddsOutput, HandlesArguments, Terminable
             }
 
             $this->renderBadge('INFO', $this->piggybackCoverage
-                ? 'TIA recording dependency graph in parallel via --coverage (first run) — '.
+                ? 'Recording dependency graph in parallel via --coverage (first run) — '.
                     'subsequent --tia runs will only re-execute affected tests.'
-                : 'TIA recording dependency graph in parallel (first run) — '.
+                : 'Recording dependency graph in parallel (first run) — '.
                     'subsequent --tia runs will only re-execute affected tests.');
 
             return $arguments;
@@ -1024,7 +1024,7 @@ final class Tia implements AddsOutput, HandlesArguments, Terminable
         if ($this->piggybackCoverage) {
             $this->recordingActive = true;
 
-            $this->renderBadge('INFO', 'TIA recording dependency graph via --coverage (first run) — '.
+            $this->renderBadge('INFO', 'Recording dependency graph via --coverage (first run) — '.
                 'subsequent --tia runs will only re-execute affected tests.');
 
             return $arguments;
@@ -1034,7 +1034,7 @@ final class Tia implements AddsOutput, HandlesArguments, Terminable
         $this->recordingActive = true;
 
         $this->renderBadge('INFO', sprintf(
-            'TIA recording dependency graph via %s (first run) — '.
+            'Recording dependency graph via %s (first run) — '.
             'subsequent --tia runs will only re-execute affected tests.',
             $recorder->driver(),
         ));
@@ -1044,8 +1044,8 @@ final class Tia implements AddsOutput, HandlesArguments, Terminable
 
     private function emitCoverageDriverMissing(): void
     {
-        $this->renderBadge('WARN', 'No coverage driver is available — TIA skipped.');
-        $this->renderDetail('TIA needs ext-pcov or Xdebug with coverage mode enabled to record the dependency graph.');
+        $this->renderBadge('WARN', 'No coverage driver is available — skipped.');
+        $this->renderDetail('Needs ext-pcov or Xdebug with coverage mode enabled to record the dependency graph.');
         $this->renderDetail('Install or enable one and rerun with --tia.');
     }
 
@@ -1069,6 +1069,9 @@ final class Tia implements AddsOutput, HandlesArguments, Terminable
         $this->state->write($this->workerEdgesKey($this->workerToken()), $json);
     }
 
+    /**
+     * @return list<string>
+     */
     private function collectWorkerEdgesPartials(): array
     {
         return $this->state->keysWithPrefix(self::KEY_WORKER_EDGES_PREFIX);
@@ -1128,6 +1131,9 @@ final class Tia implements AddsOutput, HandlesArguments, Terminable
         $this->state->write($this->workerResultsKey($this->workerToken()), $json);
     }
 
+    /**
+     * @return list<string>
+     */
     private function collectWorkerReplayPartials(): array
     {
         return $this->state->keysWithPrefix(self::KEY_WORKER_RESULTS_PREFIX);
@@ -1367,7 +1373,7 @@ final class Tia implements AddsOutput, HandlesArguments, Terminable
             // path from the class embedded in the test ID — without it,
             // filtered runs lose the ability to re-run only the failing test
             // next time.
-            if ($file === null || (is_string($file) && str_contains($file, "eval()'d"))) {
+            if ($file === null || str_contains($file, "eval()'d")) {
                 $file = $this->resolveFailedTestFile($testId);
             }
 
@@ -1406,15 +1412,11 @@ final class Tia implements AddsOutput, HandlesArguments, Terminable
     {
         $class = strstr($testId, '::', true);
 
-        if (! is_string($class) || $class === '') {
+        if (! is_string($class) || $class === '' || ! class_exists($class)) {
             return null;
         }
 
-        try {
-            $reflection = new \ReflectionClass($class);
-        } catch (\ReflectionException) {
-            return null;
-        }
+        $reflection = new \ReflectionClass($class);
 
         if ($reflection->hasProperty('__filename')) {
             try {
@@ -1433,7 +1435,7 @@ final class Tia implements AddsOutput, HandlesArguments, Terminable
         while ($current !== false) {
             $file = $current->getFileName();
 
-            if (is_string($file) && $file !== '' && ! str_contains($file, "eval()'d")) {
+            if ($file !== false && ! str_contains($file, "eval()'d")) {
                 return $file;
             }
 
@@ -1466,10 +1468,6 @@ final class Tia implements AddsOutput, HandlesArguments, Terminable
     private function hasProjectPhpSourceChanges(array $changedFiles): bool
     {
         foreach ($changedFiles as $rel) {
-            if (! is_string($rel)) {
-                continue;
-            }
-
             if (! str_ends_with($rel, '.php')) {
                 continue;
             }
@@ -1523,12 +1521,12 @@ final class Tia implements AddsOutput, HandlesArguments, Terminable
         }
 
         if (! Fingerprint::structuralMatches($fetched->fingerprint(), $current)) {
-            $this->renderBadge('WARN', 'TIA fetched baseline still drifts — discarding.');
+            $this->renderBadge('WARN', 'Fetched baseline still drifts — discarding.');
 
             return null;
         }
 
-        $this->renderBadge('SUCCESS', 'TIA fetched baseline matches — skipping local rebuild.');
+        $this->renderBadge('SUCCESS', 'Fetched baseline matches — skipping local rebuild.');
 
         return $fetched;
     }
diff --git a/src/Plugins/Tia/BaselineSync.php b/src/Plugins/Tia/BaselineSync.php
index 40028213..f552f246 100644
--- a/src/Plugins/Tia/BaselineSync.php
+++ b/src/Plugins/Tia/BaselineSync.php
@@ -67,7 +67,7 @@ final readonly class BaselineSync
 
         if (! $force && ($remaining = $this->cooldownRemaining()) !== null) {
             $this->renderBadge('WARN', sprintf(
-                'TIA last fetch found no baseline — next auto-retry in %s. Override with --refetch.',
+                'Last fetch found no baseline — next auto-retry in %s. Override with --refetch.',
                 $this->formatDuration($remaining),
             ));
 
@@ -102,7 +102,7 @@ final readonly class BaselineSync
         $this->clearCooldown();
 
         $this->renderBadge('SUCCESS', sprintf(
-            'TIA baseline ready (%s).',
+            'Baseline ready (%s).',
             $this->formatSize(strlen($payload['graph']) + strlen($payload['coverage'] ?? '')),
         ));
 
@@ -156,7 +156,7 @@ final readonly class BaselineSync
     private function emitPublishInstructions(string $repo): void
     {
         if ($this->isCi()) {
-            $this->renderBadge('INFO', 'TIA no baseline yet — this run will produce one.');
+            $this->renderBadge('INFO', 'No baseline yet — this run will produce one.');
 
             return;
         }
@@ -165,7 +165,7 @@ final readonly class BaselineSync
             ? $this->laravelWorkflowYaml()
             : $this->genericWorkflowYaml();
 
-        $this->renderBadge('WARN', 'TIA no baseline published yet — recording locally.');
+        $this->renderBadge('WARN', 'No baseline published yet — recording locally.');
         $this->renderDetail('To share the baseline with your team, add this workflow to the repo:');
         $this->renderDetail('.github/workflows/tia-baseline.yml');
 
@@ -339,7 +339,7 @@ YAML;
             // Tier 2 — transient (network, rate-limit, unknown). Surface
             // the diagnostic but let the suite fall through to record mode.
             $this->renderBadge('WARN', sprintf(
-                'TIA failed to query baseline runs — %s',
+                'Failed to query baseline runs — %s',
                 $listError['message'],
             ));
 
@@ -364,7 +364,7 @@ YAML;
             @touch($runCacheDir);
 
             $this->renderBadge('INFO', sprintf(
-                'TIA using cached baseline from %s (run %s).',
+                'Using cached baseline from %s (run %s).',
                 $repo,
                 $runId,
             ));
@@ -380,12 +380,12 @@ YAML;
 
         $this->renderBadge('INFO', $artifactSize !== null
             ? sprintf(
-                'TIA fetching baseline (%s) from %s…',
+                'Fetching baseline (%s) from %s…',
                 $this->formatSize($artifactSize),
                 $repo,
             )
             : sprintf(
-                'TIA fetching baseline from %s…',
+                'Fetching baseline from %s…',
                 $repo,
             ));
 
@@ -424,7 +424,7 @@ YAML;
 
             // Tier 2 — transient. Diagnostic + fall through to record mode.
             $this->renderBadge('WARN', sprintf(
-                'TIA baseline download failed — %s',
+                'Baseline download failed — %s',
                 $diagnosis['message'],
             ));
 
@@ -491,7 +491,7 @@ YAML;
             // "100%" message naturally.
             $percent = min(99, (int) floor(($current / $totalBytes) * 100));
             $message = sprintf(
-                '  <fg=cyan>TIA</> downloading %s / %s (%d%%, %s/s)',
+                '  <fg=cyan>Downloading</> %s / %s (%d%%, %s/s)',
                 $this->formatSize($current),
                 $this->formatSize($totalBytes),
                 $percent,
@@ -499,7 +499,7 @@ YAML;
             );
         } else {
             $message = sprintf(
-                '  <fg=cyan>TIA</> downloading %s (%s/s)',
+                '  <fg=cyan>Downloading</> %s (%s/s)',
                 $this->formatSize($current),
                 $this->formatSize($speed),
             );
@@ -723,8 +723,7 @@ YAML;
 
         // Unknown — surface the first informative line so the user has
         // *something* to act on.
-        $first = strtok($output, "\n");
-        $message = is_string($first) ? trim($first) : 'unknown error';
+        $message = trim(strtok($output, "\n"));
 
         return ['kind' => 'unknown', 'message' => $message];
     }
diff --git a/src/Plugins/Tia/Graph.php b/src/Plugins/Tia/Graph.php
index 8d516a66..01422a4f 100644
--- a/src/Plugins/Tia/Graph.php
+++ b/src/Plugins/Tia/Graph.php
@@ -234,7 +234,7 @@ final class Graph
                 View::render('components.badge', [
                     'type' => 'WARN',
                     'content' => sprintf(
-                        'TIA Vite resolver unavailable — falling back to watch pattern for %d new JS file(s).',
+                        'Vite resolver unavailable — falling back to watch pattern for %d new JS file(s).',
                         count($newJsFiles),
                     ),
                 ]);
@@ -469,7 +469,8 @@ final class Graph
     public function setResult(string $branch, string $testId, int $status, string $message, float $time, int $assertions = 0, ?string $file = null): void
     {
         $this->ensureBaseline($branch);
-        $this->baselines[$branch]['results'][$testId] = [
+
+        $entry = [
             'status' => $status,
             'message' => $message,
             'time' => $time,
@@ -480,9 +481,11 @@ final class Graph
             $rel = $this->relative($file);
 
             if ($rel !== null) {
-                $this->baselines[$branch]['results'][$testId]['file'] = $rel;
+                $entry['file'] = $rel;
             }
         }
+
+        $this->baselines[$branch]['results'][$testId] = $entry;
     }
 
     public function getAssertions(string $branch, string $testId, string $fallbackBranch = 'main'): ?int
@@ -532,17 +535,12 @@ final class Graph
         $files = [];
 
         foreach ($baseline['results'] as $result) {
-            $status = $result['status'] ?? null;
-
-            if ($status !== 7 && $status !== 8) {
+            if ($result['status'] !== 7 && $result['status'] !== 8) {
                 continue;
             }
 
             $file = $result['file'] ?? null;
-            if (! is_string($file)) {
-                continue;
-            }
-            if ($file === '') {
+            if ($file === null || $file === '') {
                 continue;
             }
 
@@ -561,15 +559,13 @@ final class Graph
         $baseline = $this->baselineFor($branch, $fallbackBranch);
 
         foreach ($baseline['results'] as $result) {
-            $status = $result['status'] ?? null;
-
-            if ($status !== 7 && $status !== 8) {
+            if ($result['status'] !== 7 && $result['status'] !== 8) {
                 continue;
             }
 
             $file = $result['file'] ?? null;
 
-            if (! is_string($file) || $file === '' || $this->relative($file) === null) {
+            if ($file === null || $file === '' || $this->relative($file) === null) {
                 return true;
             }
         }
diff --git a/src/Plugins/Tia/Recorder.php b/src/Plugins/Tia/Recorder.php
index 2695f1e1..6fcecdcf 100644
--- a/src/Plugins/Tia/Recorder.php
+++ b/src/Plugins/Tia/Recorder.php
@@ -473,7 +473,7 @@ final class Recorder
         }
 
         $parts = preg_split('/\s+as\s+/i', $import);
-        if ($parts === false || $parts === []) {
+        if ($parts === false) {
             return null;
         }
 
@@ -488,9 +488,6 @@ final class Recorder
             if (! is_array($loader)) {
                 continue;
             }
-            if (! isset($loader[0])) {
-                continue;
-            }
             if (! is_object($loader[0])) {
                 continue;
             }
@@ -689,9 +686,6 @@ final class Recorder
         $out = [];
 
         foreach ($data as $file => $lines) {
-            if (! is_string($file)) {
-                continue;
-            }
             if (! is_array($lines)) {
                 continue;
             }
@@ -709,7 +703,8 @@ final class Recorder
             // Skip files where the only "executed" line is the implicit
             // ZEND_RETURN at end-of-file (pcov artifact from being included
             // but never actually run).
-            if (count($covered) === 1 && max($covered) === max(array_keys($lines))) {
+            $lineKeys = array_keys($lines);
+            if ($lineKeys !== [] && count($covered) === 1 && $covered[0] === max($lineKeys)) {
                 continue;
             }
 
diff --git a/src/Plugins/Tia/SourceScope.php b/src/Plugins/Tia/SourceScope.php
index 4459f66c..be377ae2 100644
--- a/src/Plugins/Tia/SourceScope.php
+++ b/src/Plugins/Tia/SourceScope.php
@@ -77,7 +77,7 @@ final readonly class SourceScope
             $includes = [self::normalise($projectRoot)];
         }
 
-        return new self($projectRoot, $includes, $excludes);
+        return new self($includes, $excludes);
     }
 
     /**
@@ -152,13 +152,7 @@ final readonly class SourceScope
                 continue;
             }
 
-            $absolute = self::resolveRelative($value, $configDir);
-
-            if ($absolute === null) {
-                continue;
-            }
-
-            $out[] = $absolute;
+            $out[] = self::resolveRelative($value, $configDir);
         }
 
         return array_values(array_unique($out));
diff --git a/src/Restarters/PcovRestarter.php b/src/Restarters/PcovRestarter.php
index 21d9539c..4bfc4144 100644
--- a/src/Restarters/PcovRestarter.php
+++ b/src/Restarters/PcovRestarter.php
@@ -79,9 +79,7 @@ final class PcovRestarter implements Restarter
         $env = [];
 
         foreach (getenv() as $name => $value) {
-            if (is_string($value)) {
-                $env[$name] = $value;
-            }
+            $env[$name] = $value;
         }
 
         return $env;