Ca Cleanup Agent Skill

/ca-cleanup — post-merge branch transition

Your PR merged. You are still standing on the branch, with build output, worktree

residue, and scratch files around you. This command owns the ordinary walk back:

prove the branch actually landed, decide what the leftovers are, get to a clean

fast-forwarded default checkout, and drop the merged local branch.

It exists because nothing else owned it. /ca-standup is daily hygiene and

deliberately never touches the current branch or the default one;

/ca-chore takes docs, dependency bumps, and reverts. Issue #308 recorded

what the gap produced: a routine cleanup routed to /ca-chore, which

refused it, and then to /ca-override — a bypass invented to cover missing

coverage. This is that coverage.

Routes to

The post-merge-cleanup skill (<plugin-root>/routines/post-merge-cleanup/SKILL.md),

which owns the ancestry proof, the artifact classification, and the per-item

confirmations.

When NOT to use

• The branch has NOT merged yet → /ca-pr (finishing-a-development-branch)

owns the terminal decision; come back here after it lands.

• Daily start-of-day hygiene across *other* branches and worktrees →

/ca-standup.

• A read-only look at what is dirty → /ca-status.
• Uncommitted work you want to keep → /ca-commit. This command never

commits for you.

Hard gate

• MUST prove the current branch is an ancestor of the fetched default branch

before anything is deleted. An unproven or unfetched ancestry STOPs — a branch

that only *looks* merged is not merged.

• MUST classify every dirty or untracked artifact as unique, redundant,

or superseded, and MUST NOT discard a unique or unclassifiable one without

explicit per-item confirmation naming it.

• MUST confirm each removal individually — no batched yes, no implied yes.
• MUST reach the default branch with a clean working tree, and MUST fast-forward

with --ff-only only — never a merge commit, never a rebase, never a reset

that discards work.

• MUST NOT force-delete a branch, force-push, delete a remote branch, or write to

the default branch.

• MUST NOT require /ca-override. This is ordinary lifecycle work; if it

cannot proceed, the reason is a stated gate, not a bypass.