The voice rule states that commits are authored by the maintainer's git
identity alone. Editors and CLIs append co-author trailers and session
links by default, and once such a line is in the object store only a
history rewrite removes it — so enforce it before the commit exists.
The guard rejects tooling co-author trailers, session links, and
generated-with lines; human co-authors and ordinary messages pass.
Published manifests are now cosign-signed keyless with a documented
digest-pinning path, a lefthook pre-commit runs gitleaks over staged
changes, responses opt into a credentialless embedder policy, the
deploy webhook can require a fresh timestamp, and a monthly drill
decrypts and parses the newest offhost backup so a broken key or format
surfaces before an emergency does.