diff --git a/docs/design/2026_04_28_proposed_keyviz_adapter_labels.md b/docs/design/2026_04_28_implemented_keyviz_adapter_labels.md
similarity index 99%
rename from docs/design/2026_04_28_proposed_keyviz_adapter_labels.md
rename to docs/design/2026_04_28_implemented_keyviz_adapter_labels.md
index 88ad5e4ef..723762649 100644
--- a/docs/design/2026_04_28_proposed_keyviz_adapter_labels.md
+++ b/docs/design/2026_04_28_implemented_keyviz_adapter_labels.md
@@ -1,5 +1,5 @@
 ---
-status: proposed
+status: implemented
 phase: 2-C+
 parent_design: docs/admin_ui_key_visualizer_design.md
 author: bootjp
@@ -579,7 +579,7 @@ from PR #694: Claude bot critical, Gemini high.)
 The fan-out aggregator's per-cell merge key gains the label:
 
 - Phase 2-C (current): `(bucketID, raftGroupID, leaderTerm,
-  windowStart)` per design `2026_04_27_proposed_keyviz_cluster_fanout.md`
+  windowStart)` per design `2026_04_27_implemented_keyviz_cluster_fanout.md`
   §4.
 - With labels: same tuple — but `bucketID` itself now carries the
   label via the §5 composite (`route:1:dynamo`). The merge key