diff --git a/docs/roadmap/implementation.md b/docs/roadmap/implementation.md
index c83b2b4..00f6024 100644
--- a/docs/roadmap/implementation.md
+++ b/docs/roadmap/implementation.md
@@ -312,6 +312,12 @@ Validate: offline tests, race tests, vet, build, formatting, and local hygiene
 from the catalog runbook. Its remote-publication checks belong to later release
 preparation, not this local-candidate step.
 
+**Completed: 2026-10-13.** OpenRouter candidate `v3.20261013.0` points to
+peeled commit `2a69672b1bb220f1a730153341470f5ac67e15f4`. Validation passed:
+`GOWORK=off GOPROXY=off go test ./...`, `go test -race ./...`, `go vet ./...`,
+`go build ./...`, formatting, `git diff --check`, and module identity via
+`go list -m`. The annotated tag is local only; no publication or push was made.
+
 ## Stage 5: Add RakestrawHome Catalog Diagnostic Assets
 
 Scope: `../promptkit-backend-rakestrawhome` only, plus this plan's completion record.