diff --git a/docs/superpowers/refactor-logs/2026-05-06-input-output-unification.md b/docs/superpowers/refactor-logs/2026-05-06-input-output-unification.md
index 6053eb3..e49d9fc 100644
--- a/docs/superpowers/refactor-logs/2026-05-06-input-output-unification.md
+++ b/docs/superpowers/refactor-logs/2026-05-06-input-output-unification.md
@@ -226,7 +226,7 @@ material so we touch every file once.
 - [ ] `AGENTS.md` (root) — Per-Package Conventions: document `./ui` subpath, schema reachability from feature root, factory-bound use cases / controllers (carry-over from Plan 8)
 - [ ] `docs/guides/adding-a-feature.md` — restructure to use the Plan-9 use-case template (with input + output schemas + parse), the Plan-9 controller template (with presenter), and the new `procedures.ts` step (per-feature error map)
 - [ ] `docs/guides/tdd-workflow.md` — update mock decision tree + worked example to factory injection (Plan 8) + R25 output-validation test pattern (Plan 9) + R26 router-error-mapping test pattern (Plan 9)
-- [ ] `docs/guides/testing-strategy.md` — Mocking section: direct factory injection (Plan 8); R25/R26/R27/R28 test obligations (Plan 9)
+- [x] `docs/guides/testing-strategy.md` — Mocking section: direct factory injection (Plan 8); R25/R26/R27/R28 test obligations (Plan 9)
 - [ ] `docs/architecture/vertical-feature-spec.md` — §6 file shape: schemas + presenter + procedures.ts; §10 testing: R25/R26/R27/R28
 - [ ] `docs/architecture/overview.md` — data-flow box: add input schema, output schema, presenter, error-middleware lanes
 - [ ] `docs/architecture/dependency-flow.md` — verify (no expected change beyond a `./ui` mention)