diff --git a/conductor/tracks/mma_core_engine_20260224/plan.md b/conductor/tracks/mma_core_engine_20260224/plan.md
index b9ac871..6117de1 100644
--- a/conductor/tracks/mma_core_engine_20260224/plan.md
+++ b/conductor/tracks/mma_core_engine_20260224/plan.md
@@ -34,8 +34,8 @@
     - [x] Catch `subprocess.run()` execution errors inside `shell_runner.py` (bc654c2)
 - [x] Task: Tier 4 Instantiation (8e4e326)
     - [x] Make a secondary API call to `default_cheap` model passing `stderr` and snippet (8e4e326)
-- [ ] Task: Payload Formatting
-    - [ ] Inject the 20-word fix summary into the Tier 3 worker history
+- [x] Task: Payload Formatting (fb3da4d)
+    - [x] Inject the 20-word fix summary into the Tier 3 worker history (fb3da4d)
 
 ## Phase 5: Track 5 - UI Decoupling & Tier 1/2 Routing (The Final Boss)
 - [ ] Task: The Event Bus