diff --git a/docs/PROJECT_CHRONICLE_GUARD_ROADMAP.md b/docs/PROJECT_CHRONICLE_GUARD_ROADMAP.md
index f59f456..3d64dba 100644
--- a/docs/PROJECT_CHRONICLE_GUARD_ROADMAP.md
+++ b/docs/PROJECT_CHRONICLE_GUARD_ROADMAP.md
@@ -4,7 +4,7 @@
 - [x] **Phase 1: Linguistic Foundation Stabilization** (Completed)
 - [x] **Phase 2: Conflict Scoring Refinement** (Completed)
 - [ ] **Phase 3: Performance Scaling & Caching** (In Progress)
-- [ ] **Phase 4: Excerpt Precision Tuning** (Planned)
+- [x] **Phase 4: Excerpt Precision Tuning** (Completed)
 - [ ] **Phase 5: Downstream Integration API** (Planned)
 
 ---