diff --git a/conductor/tracks/ui_performance_20260223/plan.md b/conductor/tracks/ui_performance_20260223/plan.md
index 23bdc5c..18feb8d 100644
--- a/conductor/tracks/ui_performance_20260223/plan.md
+++ b/conductor/tracks/ui_performance_20260223/plan.md
@@ -12,7 +12,7 @@
     - [x] Sub-task: Implement Feature (event-based timing in GUI)
 - [ ] Task: Conductor - User Manual Verification 'Phase 1: High-Resolution Telemetry Engine' (Protocol in workflow.md)
 
-## Phase 2: AI Tooling and Alert System
+## Phase 2: AI Tooling and Alert System [checkpoint: b92f2f3]
 - [x] Task: Create `get_ui_performance` AI tool 9ec5ff3
     - [x] Sub-task: Write Tests (verify tool returns correct JSON schema)
     - [x] Sub-task: Implement Feature (add tool to `mcp_client.py`)