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hyperpolymath merged 1 commit into from
Oct 1, 2026
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docs: add Signed commits section to CONTRIBUTING #35

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20 changes: 14 additions & 6 deletions .github/CONTRIBUTING.md
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Expand Up @@ -194,12 +194,20 @@ Typical scopes match the modules: `base`, `warrant`, `access`, `echo`,

### Signed commits

All commits must be **signed**. Use the existing SSH/GPG signing key; do
not create new keys. Verify with:

git log --show-signature

Unsigned commits will be asked to be re-signed before merge.
Every commit that reaches the default branch must be signed; a ruleset refuses
unsigned pushes. Estate policy:
[SIGNING-POLICY](https://github.com/hyperpolymath/standards/blob/main/docs/SIGNING-POLICY.adoc).

- **People and interactive agents** sign with an SSH key registered on GitHub
as a *signing* key (`gpg.format=ssh`, `user.signingkey=<key>.pub`,
`commit.gpgsign=true`). The committer email must be verified on that account.
- **Apps, bots and workflows** never `git push` local commits. They write
through the API (`createCommitOnBranch` or the estate `signed-push` action)
so that GitHub signs each commit.
- Merge PRs with **squash**. The ruleset checks every commit on the PR branch,
not just the result, so one unsigned commit blocks the merge. Re-create such a
branch with signed commits (`git cherry-pick -S`) and open a new PR.
Rebase-merge replays commits unsigned and is disabled.

### Before you open a PR

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