diff --git a/conductor/tracks/discussion_takes_branching_20260311/plan.md b/conductor/tracks/discussion_takes_branching_20260311/plan.md
index 247f7c3..86193e3 100644
--- a/conductor/tracks/discussion_takes_branching_20260311/plan.md
+++ b/conductor/tracks/discussion_takes_branching_20260311/plan.md
@@ -1,9 +1,9 @@
 # Implementation Plan: Discussion Takes & Timeline Branching
 
 ## Phase 1: Backend Support for Timeline Branching
-- [ ] Task: Write failing tests for extending the session state model to support branching (tree-like history or parallel linear "takes" with a shared ancestor).
-- [ ] Task: Implement backend logic to branch a session history at a specific message index into a new take ID.
-- [ ] Task: Implement backend logic to promote a specific take ID into an independent, top-level session.
+- [x] Task: Write failing tests for extending the session state model to support branching (tree-like history or parallel linear "takes" with a shared ancestor). [fefa06b]
+- [x] Task: Implement backend logic to branch a session history at a specific message index into a new take ID. [fefa06b]
+- [x] Task: Implement backend logic to promote a specific take ID into an independent, top-level session. [fefa06b]
 - [ ] Task: Conductor - User Manual Verification 'Phase 1: Backend Support for Timeline Branching' (Protocol in workflow.md)
 
 ## Phase 2: GUI Implementation for Tabbed Takes