Verify partial validator decisions through CLI workflows

docs/roadmap/implementation.md

@@ -2,7 +2,7 @@
 
 **Last updated:** 2026-09-25
 
-**Status:** Ready for implementation; no stages implemented by this planning pass.
+**Status:** Implemented; all stages completed.
 **Source baseline:** `60e2fe7`.
 **Audience:** gpt-5.6-terra coding agent.
 
@@ -230,6 +230,14 @@ success and handled extras through existing reporting mechanisms.
 
 ## Stage 3 — Verify the Assembled Workflow and Finalize Documentation
 
+**Completed:** 2026-09-25. Controlled subprocess runs covered a mixed decision
+response and an extra-only response through the CLI, transcript, YAML, Markdown,
+debug ledger, and interaction evidence. Fixture execution facts showed one
+provider attempt and zero structural repairs per logical call. `go test
+./cmd/audita` and `go test ./...` passed. Canonical validator guidance and
+roadmap status were updated; the two span-deletion plan links now target the
+historical plan at `60e2fe7`.
+
 **Work**
 
 1. Extend the existing local-provider subprocess fixtures in