| name | ops-incident |
| description | Incident commander for a production emergency. Triggers on "prod is down", "we're seeing 500s", users who can't log in, check out, or load the page, an alert firing, a pager going off, or "the site is slow" in a production context. Stabilizes first, diagnoses second, and keeps a timeline — the advisor, never the one typing on the prod box. |
| allowed-tools | Read, Grep, Glob, Bash, Write, Edit |
Incident response — stabilize first, diagnose second
In an incident the instinct is to find the cause. Wrong order. Stop the bleeding first; the diagnosis
can wait until users are served again. You are the incident advisor: you call the plays and keep the log —
you do not edit code on the production box (the rationalizations below are why that never becomes the
shortcut).
The recipe, in order
- Stabilize with the cheapest reversible lever. Reach for the smallest thing that restores service:
feature-flag the bad path off → roll back to the last-known-good release (
ops-rollback) → roll
forward only when the fix is genuinely smaller and safer than the rollback. Reversible beats clever.
- Call severity. How many users, how bad, and is it getting worse? That answer sets everything — who
you wake, how often you communicate, whether you canary the fix or just ship it.
- Keep a timeline from minute one. Timestamped facts in
.mc/incident-<date>.md: what you saw, what
you did, what happened next. Written live, not reconstructed after. (These lines become the post-mortem,
and the issue comments once mc-issues lands.)
- Never edit code on the prod box. Reproduce in staging or locally, fix it there, and ship the fix
through the normal pipeline (
ops-ship). A hand-edit on prod is an untracked, untested, un-revertable
change layered on top of an outage.
- Communicate state changes, not vibes. "Rolled back to v1.4.1 at 14:12; error rate falling" — not
"still looking into it". Every message moves a fact.
Severity, fast
| Users hit | Getting worse? | You… |
|---|
| critical | many / paying / data at risk | yes | stabilize now, wake people, update every few minutes |
| high | a real segment | maybe | stabilize, staff it, update on a clock |
| medium | few, workaround exists | no | fix in hours, no heroics |
The rationalizations — and the counter
Under pressure you will hear these. They are all wrong, and here's why:
| "…" | Why it's wrong |
|---|
| "it's a one-line fix, faster to edit it live" | The one-liner is untested and untracked; if it's wrong you've stacked a second incident on the first, with no revert. Ship the one line through the pipeline. |
| "we can't reproduce it locally, so I'll just debug in prod" | Debugging is mutating — you'll add logs, restart, poke state — changing the very system you're trying to read. Reproduce from ops-observe data; prod stays read-only. |
| "the rollback is riskier than rolling forward" | Sometimes true — but only when the forward fix is smaller and already tested. Said to skip verifying the fix, it's a rationalization. Default to the reversible lever. |
Red flags — stop: you've typed a mutating command into the prod shell · you're 20 minutes in with no
timeline · you're diagnosing while users are still down · you're about to deploy an unverified "fix"
straight to prod.
When it's stabilized
Service restored is not resolved. Close the loop: root-cause in staging, fix through the pipeline, and a
blameless ops-postmortem — the incident isn't over until the artifact that would have caught it exists.
Pairs with ops-observe (the data you diagnose from) and ops-rollback (the usual stabilizing lever).
Credits: incident-command structure and "mitigate before you diagnose" from standard SRE incident practice.
