The plugin
Installing it
claude plugin marketplace add non4me/SpecSheriff#release
claude plugin install specsheriff@specsheriff-marketplace
codex plugin marketplace add non4me/SpecSheriff@release
codex plugin add specsheriff@specsheriff-marketplace
The branch release holds only releases, so a machine never reads the work in progress on main.
In a session, /plugin does the same. From a private fork or mirror, git must already be able to
read the repository with a credential it stores, which the background updates use too; a
GITHUB_TOKEN alone does nothing for them.