diff --git a/conductor/tracks/on_demand_def_lookup_20260306/plan.md b/conductor/tracks/on_demand_def_lookup_20260306/plan.md
index 7ca9e73..a71fbe7 100644
--- a/conductor/tracks/on_demand_def_lookup_20260306/plan.md
+++ b/conductor/tracks/on_demand_def_lookup_20260306/plan.md
@@ -6,7 +6,7 @@
 Focus: Parse @symbol syntax from user input
 
 - [x] Task 1.1: Initialize MMA Environment
-- [~] Task 1.2: Implement @symbol regex parser
+- [x] Task 1.2: Implement @symbol regex parser (a0a9d00)
     - WHERE: `src/gui_2.py` in `_send_callback()`
     - WHAT: Extract @SymbolName patterns
     - HOW: