diff --git a/conductor/tracks/rrule_generic_formatter_20260219/plan.md b/conductor/tracks/rrule_generic_formatter_20260219/plan.md
index 4e57169..f59c822 100644
--- a/conductor/tracks/rrule_generic_formatter_20260219/plan.md
+++ b/conductor/tracks/rrule_generic_formatter_20260219/plan.md
@@ -1,9 +1,9 @@
 # Implementation Plan - Generic RRULE Formatter
 
 ## Phase 1: Reproduction & Test Setup
-- [ ] Task: Create reproduction test case for `BYDAY` object
-    - [ ] Add a test in `icalendar_test.ts` mocking a `BYDAY` property as an array of objects (e.g. `[{ day: 'MO' }]`).
-    - [ ] Run the test and confirm it fails with `SyntaxError: Invalid weekday string: [object Object]`.
+- [x] Task: Create reproduction test case for `BYDAY` object cfab0c3
+    - [x] Add a test in `icalendar_test.ts` mocking a `BYDAY` property as an array of objects (e.g. `[{ day: 'MO' }]`).
+    - [x] Run the test and confirm it fails with `SyntaxError: Invalid weekday string: [object Object]`.
 - [ ] Task: Conductor - User Manual Verification 'Reproduction & Test Setup' (Protocol in workflow.md)
 
 ## Phase 2: Implementation