diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 125ab23812d..375e5d4d239 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -95,6 +95,7 @@ For coordinated change sets that genuinely need more than 10 PRs, join the **#cl
 
 - Test locally with your OpenClaw instance
 - Run tests: `pnpm build && pnpm check && pnpm test`
+- For iterative local commits, `scripts/committer --fast "message" <files...>` passes `FAST_COMMIT=1` through to the pre-commit hook so it skips the repo-wide `pnpm check`. Only use it when you've already run equivalent targeted validation for the touched surface.
 - For extension/plugin changes, run the fast local lane first:
   - `pnpm test:extension <extension-name>`
   - `pnpm test:extension --list` to see valid extension ids