diff --git a/test/helpers/touchfiles.ts b/test/helpers/touchfiles.ts
index 489b2a915..60e5cff85 100644
--- a/test/helpers/touchfiles.ts
+++ b/test/helpers/touchfiles.ts
@@ -98,7 +98,7 @@ export const E2E_TOUCHFILES: Record<string, string[]> = {
   // include question-tuning.ts and generate-ask-user-format.ts because the
   // AUTO_DECIDE preamble injection lives there and changes can flip the
   // regression test outcome between 'asked' and 'auto_decided'.
-  'plan-ceo-review-plan-mode':    ['plan-ceo-review/**', 'scripts/resolvers/preamble/generate-completion-status.ts', 'scripts/resolvers/question-tuning.ts', 'scripts/resolvers/preamble/generate-ask-user-format.ts', 'scripts/resolvers/preamble.ts', 'scripts/resolvers/review.ts', 'test/helpers/claude-pty-runner.ts'],
+  'plan-ceo-review-plan-mode':    ['plan-ceo-review/**', 'scripts/resolvers/preamble/generate-completion-status.ts', 'scripts/resolvers/question-tuning.ts', 'scripts/resolvers/preamble/generate-ask-user-format.ts', 'scripts/resolvers/preamble.ts', 'scripts/resolvers/review.ts', 'test/helpers/claude-pty-runner.ts', 'test/skill-e2e-plan-ceo-plan-mode.test.ts'],
   'plan-eng-review-plan-mode':    ['plan-eng-review/**', 'scripts/resolvers/preamble/generate-completion-status.ts', 'scripts/resolvers/question-tuning.ts', 'scripts/resolvers/preamble/generate-ask-user-format.ts', 'scripts/resolvers/preamble.ts', 'scripts/resolvers/review.ts', 'test/helpers/claude-pty-runner.ts', 'test/skill-e2e-plan-eng-plan-mode.test.ts'],
   'plan-design-review-plan-mode': ['plan-design-review/**', 'scripts/resolvers/preamble/generate-completion-status.ts', 'scripts/resolvers/question-tuning.ts', 'scripts/resolvers/preamble/generate-ask-user-format.ts', 'scripts/resolvers/preamble.ts', 'scripts/resolvers/review.ts', 'test/helpers/claude-pty-runner.ts', 'test/skill-e2e-plan-design-plan-mode.test.ts'],
   'plan-devex-review-plan-mode':  ['plan-devex-review/**', 'scripts/resolvers/preamble/generate-completion-status.ts', 'scripts/resolvers/question-tuning.ts', 'scripts/resolvers/preamble/generate-ask-user-format.ts', 'scripts/resolvers/preamble.ts', 'scripts/resolvers/review.ts', 'test/helpers/claude-pty-runner.ts'],
diff --git a/test/skill-e2e-plan-ceo-plan-mode.test.ts b/test/skill-e2e-plan-ceo-plan-mode.test.ts
index 30e32fb2d..861605d88 100644
--- a/test/skill-e2e-plan-ceo-plan-mode.test.ts
+++ b/test/skill-e2e-plan-ceo-plan-mode.test.ts
@@ -47,7 +47,12 @@ describeE2E('plan-ceo-review plan-mode smoke (gate)', () => {
     const obs = await runPlanSkillObservation({
       skillName: 'plan-ceo-review',
       inPlanMode: true,
-      timeoutMs: 300_000,
+      // 420s, not 300s: measured 2026-08-11, a clean isolated pass took
+      // 295.7s (80s on a quiet main run) — 4s under the old budget — and the
+      // same run timed out at ~308s three times under concurrent eval load.
+      // Same runner-contention class as review-dashboard-via/retro-base-
+      // branch; headroom instead of a budget-edge flake in the gate lane.
+      timeoutMs: 420_000,
       env: { QUESTION_TUNING: 'false', EXPLAIN_LEVEL: 'default' },
     });
 
@@ -72,5 +77,5 @@ describeE2E('plan-ceo-review plan-mode smoke (gate)', () => {
       );
     }
     assertReportAtBottomIfPlanWritten(obs);
-  }, 360_000);
+  }, 480_000);
 });