diff --git a/conductor/tracks/fix_rrule_object_mapping_20260219/plan.md b/conductor/tracks/fix_rrule_object_mapping_20260219/plan.md
index 65a7e27..8f21cec 100644
--- a/conductor/tracks/fix_rrule_object_mapping_20260219/plan.md
+++ b/conductor/tracks/fix_rrule_object_mapping_20260219/plan.md
@@ -1,9 +1,9 @@
 # Implementation Plan - Fix RRULE Object Mapping
 
 ## Phase 1: Reproduction
-- [ ] Task: Reproduce `Unknown RRULE property` error
-    - [ ] Modify the test case in `icalendar_test.ts` to use `frequency` instead of `freq` in the mock object.
-    - [ ] Run the test and confirm it fails with the expected error.
+- [x] Task: Reproduce `Unknown RRULE property` error 0b67cbb
+    - [x] Modify the test case in `icalendar_test.ts` to use `frequency` instead of `freq` in the mock object.
+    - [x] Run the test and confirm it fails with the expected error.
 - [ ] Task: Conductor - User Manual Verification 'Reproduction' (Protocol in workflow.md)
 
 ## Phase 2: Fix Implementation