diff --git a/conductor/tracks/mma_core_engine_20260224/plan.md b/conductor/tracks/mma_core_engine_20260224/plan.md
index 972bee8..d274c58 100644
--- a/conductor/tracks/mma_core_engine_20260224/plan.md
+++ b/conductor/tracks/mma_core_engine_20260224/plan.md
@@ -20,7 +20,7 @@
 - [x] Task: State Mutator Methods (e925b21)
     - [x] Implement `ticket.mark_blocked()`, `ticket.mark_complete()`, `track.get_executable_tickets()` (e925b21)
 
-## Phase 3: Track 3 - The Linear Orchestrator & Execution Clutch
+## Phase 3: Track 3 - The Linear Orchestrator & Execution Clutch [checkpoint: e6c8d73]
 - [x] Task: The Engine Core (7a30168)
     - [x] Create `multi_agent_conductor.py` containing `ConductorEngine` and `run_worker_lifecycle` (7a30168)
 - [x] Task: Context Injection (9d6d174)