diff --git a/conductor/tracks/gui_refactor_stabilization_20260512/plan.md b/conductor/tracks/gui_refactor_stabilization_20260512/plan.md
index efcd02b..7343673 100644
--- a/conductor/tracks/gui_refactor_stabilization_20260512/plan.md
+++ b/conductor/tracks/gui_refactor_stabilization_20260512/plan.md
@@ -1,14 +1,14 @@
 # Implementation Plan: GUI Refactor & Stabilization
 
-## Phase 1: Linting & Verification Foundations
+## Phase 1: Linting & Verification Foundations [checkpoint: 294217c]
 - [x] Task: Develop custom AST linter for ImGui scope/indentation in `scripts/check_imgui_scopes.py`. c359961
 - [x] Task: Write tests for the new AST linter to ensure it catches unclosed scopes and indentation mismatches. c359961
-- [~] Task: Expand API hooks in `src/api_hooks.py` to better simulate complex UI interactions (e.g., specific widget clicks, drag operations).
-- [ ] Task: Write tests for the new API hooks.
-- [ ] Task: Conductor - User Manual Verification 'Linting & Verification Foundations' (Protocol in workflow.md)
+- [x] Task: Expand API hooks in `src/api_hooks.py` to better simulate complex UI interactions (e.g., specific widget clicks, drag operations). a3b117d
+- [x] Task: Write tests for the new API hooks. a3b117d
+- [x] Task: Conductor - User Manual Verification 'Linting & Verification Foundations' (Protocol in workflow.md) 294217c
 
 ## Phase 2: Targeted Sub-agent Test Framework
-- [ ] Task: Design and implement a focused test suite structure in `tests/` specifically for rapid sub-agent GUI verification without full E2E overhead.
+- [~] Task: Design and implement a focused test suite structure in `tests/` specifically for rapid sub-agent GUI verification without full E2E overhead.
 - [ ] Task: Migrate or create at least 3 high-value tests for the main panel rendering paths into this new suite.
 - [ ] Task: Verify the targeted suite runs quickly and reliably.
 - [ ] Task: Conductor - User Manual Verification 'Targeted Sub-agent Test Framework' (Protocol in workflow.md)