diff --git a/conductor/tracks/tiered_context_scoping_hitl_approval/plan.md b/conductor/tracks/tiered_context_scoping_hitl_approval/plan.md
index 6c8cfab..823ff98 100644
--- a/conductor/tracks/tiered_context_scoping_hitl_approval/plan.md
+++ b/conductor/tracks/tiered_context_scoping_hitl_approval/plan.md
@@ -5,7 +5,7 @@
 - [x] Task: Integrate AST skeleton extraction into the standard Tier 3 context build. 0ed01aa
 - [x] Task: Update the project state to track which files are assigned to which tier. 2ece9e1
 
-## Phase 2: The Spawn Interceptor
+## Phase 2: The Spawn Interceptor [checkpoint: 4c53ca1]
 - [x] Task: Create a signaling mechanism in `multi_agent_conductor.py` to emit a "Worker Spawn Requested" event. e293c5e
 - [x] Task: Implement the interception logic that pauses the async dispatcher until a signal is received from the GUI. 4c53ca1