diff --git a/conductor/tracks/on_demand_def_lookup_20260306/plan.md b/conductor/tracks/on_demand_def_lookup_20260306/plan.md
index a8cd937..8510503 100644
--- a/conductor/tracks/on_demand_def_lookup_20260306/plan.md
+++ b/conductor/tracks/on_demand_def_lookup_20260306/plan.md
@@ -19,7 +19,7 @@ Focus: Parse @symbol syntax from user input
 ## Phase 2: Definition Retrieval
 Focus: Use existing MCP tool to get definitions
 
-- [~] Task 2.1: Integrate py_get_definition
+- [x] Task 2.1: Integrate py_get_definition (c6f9dc8)
     - WHERE: `src/gui_2.py`
     - WHAT: Call MCP tool for each symbol
     - HOW: