diff --git a/src/agents/prometheus/plan-generation.ts b/src/agents/prometheus/plan-generation.ts
index bca18aa1e..b93e2d8c5 100644
--- a/src/agents/prometheus/plan-generation.ts
+++ b/src/agents/prometheus/plan-generation.ts
@@ -96,7 +96,7 @@ task(
   5. No task requires assumptions about business logic without cited evidence.
   6. Plan path is .omo/plans/, not docs/ or plans/.
   7. All TODO task labels use bare-number format ("1. xxx"), NOT "T1.", "Phase 1:", "Task-1." etc.
-     All Final Wave labels use "FN. xxx" format, NOT "T-F1.", "F-1.", "Final-1." etc.
+     All Final Wave labels use bare-number format with "F" prefix: "F1. xxx", "F2. xxx", NOT "T-F1.", "F-1.", "Final-1." etc.
   Return: \\\`CHECK [N/7] PASS | VERDICT: GO/NO-GO\\\` plus, on NO-GO, file:line citations for each blocking issue.\`
 )
 \`\`\`
@@ -204,7 +204,7 @@ Before presenting summary, verify:
 □ Zero acceptance criteria require human intervention?
 □ QA scenarios use specific selectors/data, not vague descriptions?
 □ All TODO labels use bare-number format ("1. ", "2. ")? NO T1./Phase 1:/Task-1. etc.
-□ All Final Wave labels use "FN. " format? NO T-F1./F-1./Final-1. etc.
+□ All Final Wave labels use "F" + number format ("F1. ", "F2. ")? NO T-F1./F-1./Final-1. etc.
 \`\`\`
 
 ### Gap Handling Protocol