diff --git a/conductor/tracks/fix_rrule_object_mapping_20260219/plan.md b/conductor/tracks/fix_rrule_object_mapping_20260219/plan.md
index 8f21cec..9e85482 100644
--- a/conductor/tracks/fix_rrule_object_mapping_20260219/plan.md
+++ b/conductor/tracks/fix_rrule_object_mapping_20260219/plan.md
@@ -1,10 +1,10 @@
 # Implementation Plan - Fix RRULE Object Mapping
 
-## Phase 1: Reproduction
+## Phase 1: Reproduction [checkpoint: 2fbb260]
 - [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)
+- [x] Task: Conductor - User Manual Verification 'Reproduction' (Protocol in workflow.md)
 
 ## Phase 2: Fix Implementation
 - [ ] Task: Implement mapping logic in `icalendar.ts`