Commit
Create one or more truthful checkpoint commits on an owned delivery branch. Discover repository message, signing, DCO, hook, and verification policy before committing. A commit preserves work; it does not automatically authorize push, PR publication, merge, or branch deletion.
This skill is the BUILD/checkpoint operation of $delivery. Run the shared
delivery context probe and use its active record rather than assuming
origin/main, GitHub, branch ownership, or a writable attached checkout.