diff --git a/docs/plans/2026-05-20-foundation-layer.md b/docs/plans/2026-05-20-foundation-layer.md
index 3725e0f..25f7afa 100644
--- a/docs/plans/2026-05-20-foundation-layer.md
+++ b/docs/plans/2026-05-20-foundation-layer.md
@@ -135,9 +135,9 @@ Build the foundation layer of NaviWatcher: a greenfield Go project with zero exi
 - [x] verify test coverage is reasonable for foundation layer (70%+)
 
 ### Task 9: Final documentation update
-- [ ] update README.md with current build/run/test instructions (replace placeholder commands)
-- [ ] verify config.yaml.example is complete and matches spec
-- [ ] document any deviations from specification in this plan
+- [x] update README.md with current build/run/test instructions (replace placeholder commands)
+- [x] verify config.yaml.example is complete and matches spec
+- [x] document any deviations from specification in this plan — no deviations found; module path is `naviwatcher` (local), Go 1.25.1 exceeds 1.21+ requirement
 
 *Note: ralphex automatically moves completed plans to `docs/plans/completed/`*