diff --git a/docs/roadmap/implementation.md b/docs/roadmap/implementation.md
index f9f1c14..94cb037 100644
--- a/docs/roadmap/implementation.md
+++ b/docs/roadmap/implementation.md
@@ -503,3 +503,5 @@ Commit intent: `Record the test suite remediation results`
 ## Progress Notes
 
 - Planning complete; implementation has not started.
+- [x] Stage 1 complete — `ansible-role-seriatim` commit `e08c63c`; full
+  `tests/integration` passed. No deviations.