| name | fix-loop |
| description | Make ONE bounded fix attempt at failing deterministic checks — root-cause first, editing only files related to the failure — then report. Front door for /fix-loop. |
| allowed-tools | Read, Grep, Glob, Bash, Edit |
| tags | ["sdlc","fix","debug"] |
fix-loop
One invocation = one fix attempt. Diagnose the failure, apply the smallest safe fix,
re-run the failing checks, and report. Do NOT loop internally: make one attempt, then
hand the result back — the caller re-invokes while checks still fail and owns the loop
bound, so a run never spins here. Run standalone, the same rule holds.
Safety: never run destructive commands (rm -rf, force-push, DROP/TRUNCATE) or write
prod config/secrets. Nothing auto-blocks this — you are the backstop, and this rule holds
regardless of environment. The escalation triggers below are hard stops. Never weaken or
delete a failing test to make a check pass.
External skill (provision — debugging method)
If the systematic-debugging skill (from the Superpowers pack) is installed, use its
four-phase root-cause method — do not "fix" what you have not
understood. Whatever the method, it must: reproduce the failure, find the root cause,
predict the fix, and confirm. If it is not installed, follow the same discipline in-pack.
The attempt (this invocation)
- Reproduce — quote the exact failing command and its real error output.
- Diagnose — find the root cause (read the code/stack trace); distinguish a real bug
from a flaky test or an environment problem. State the cause before touching code.
- Smallest fix — edit only files related to that root cause; no broad refactors,
no unrelated "drive-by" changes.
- Re-run the failing check; record the result.
- If green, run full verification (
/verify). If a new failure appears, report it — the
workflow's next invocation (a fresh attempt) handles it; do not chain fixes here.
Classify before you "fix"
- Flaky test — fix the test's determinism (waits/selectors/seeding), not the product,
and never by weakening assertions.
- Environment issue (service down, port, missing dep) — fix the env / report it; not a
code change to force green.
- Real defect — fix the code with a regression test that fails before and passes after.
- Spec/contract ambiguity — stop and ask; do not invent behavior.
Stop and ask a human if
- a DB migration is required but not approved · the API contract would change ·
auth/permission behavior changes · a dependency upgrade is needed · production config
changes · the same root cause persists from a previous attempt with no new hypothesis ·
multiple valid designs exist · the fix would weaken a test or a security control.
Definition of done (per attempt)
Either: the targeted check (and /verify, if reached) passes with a root-cause fix (and a
regression test for real defects); or you report the failure honestly — the exact commands,
the root cause (or best hypothesis), files changed, and remaining risk — and let the workflow
decide whether to re-invoke. Escalation is success, not failure.
Output contract
Return root_cause (one line, or the hypothesis), fix_summary (files changed + what
changed), checks_passed, and escalate (true when a hard-stop trigger above was hit).
checks_passed MUST be the literal JSON boolean true or false (true only if the targeted
checks actually ran AND passed after your fix) — never a count or status phrase. The workflow
routes on it: true exits the fix loop, anything else keeps looping, so prose traps the loop.
