diff --git a/AGENTS.md b/AGENTS.md
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+# Repository Instructions
+
+- Every commit made in this repository must include a DCO signoff. Use `git commit --signoff` or `git commit -s`. If a commit is missing the signoff, fix it with `git commit --amend --no-edit --signoff` before pushing.
diff --git a/CLAUDE.md b/CLAUDE.md
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+AGENTS.md
\ No newline at end of file