Work Issue

Execute exactly one issue, unattended. The issue's acceptance criteria are the contract; the human re-enters at PR review, never mid-run.

Hard rules

Never ask the user anything. No AskUserQuestion, no "shall I…". Ambiguity and failure both route to the BLOCKED exit.
Two exits only. Every run ends in DELIVERED (branch pushed, PR opened, status in-review) or BLOCKED (findings commented, status needs-human). Never exit silently, never half-done without a comment.
Never merge. Never commit to the default branch. All work happens on loop/issue-<n>.
One issue per run. Don't grab follow-up work; note it in the PR description instead.
Surgical scope. Touch only what this issue requires; respect its Must-not-change list.

Load .loop/config.md for the tracker verbs. Missing → print "run /loop-setup first" and stop (nothing to comment on yet).
read the issue ($ARGUMENTS = issue number/ref) including all comments — comments may contain human answers from a previous blocked run.
Gate check: the issue has acceptance criteria, each with a runnable check, and the check infrastructure exists in the repo. Anything missing → BLOCKED with the specific gap ("criterion 3 has no check command"; "no test runner configured").