diff --git a/conductor/tracks/ts_cpp_tree_sitter_20260308/plan.md b/conductor/tracks/ts_cpp_tree_sitter_20260308/plan.md
index 28017b3..a8d3c4e 100644
--- a/conductor/tracks/ts_cpp_tree_sitter_20260308/plan.md
+++ b/conductor/tracks/ts_cpp_tree_sitter_20260308/plan.md
@@ -34,7 +34,7 @@ Focus: Add tools to mcp_client dispatch
 - [x] Task 3.4: Add ts_cpp_get_code_outline tool 0db41ef
 - [x] Task 3.5: Register tools in get_tool_schemas 0db41ef
 
-## Phase 4: Tests
+## Phase 4: Tests [checkpoint: 4f08677]
 Focus: Verify C/C++ tools work correctly
 
 - [x] Task 4.1: Write tests for ts_c_get_skeleton 3bb850a