diff --git a/conductor/tracks/context_comp_slices_20260510/plan.md b/conductor/tracks/context_comp_slices_20260510/plan.md
index a99e49b..1105782 100644
--- a/conductor/tracks/context_comp_slices_20260510/plan.md
+++ b/conductor/tracks/context_comp_slices_20260510/plan.md
@@ -32,7 +32,7 @@ Focus: Named view configurations
 - [x] Task 4.3: Implement preset save/load to project config [cb0fa89]
 - [x] Task 4.4: Write tests for view presets [cb0fa89]
 
-## Phase 5: AST Slice Pre-population
+## Phase 5: AST Slice Pre-population [checkpoint: 2ebe0c6]
 Focus: Show auto-resolved slices before user customizes
 
 - [x] Task 5.1: On file add to context, compute AST slices automatically [a669f92]