incident-response

incident-response is a skill for Claude Code, Codex from tmj-90/gaffer. It costs 85 tokens per session (892 once invoked), scanned A, original, Apache-2.0.

A process for handling a declared production incident, including judging its severity, assigning responsibility, containing the problem, restoring service, and reviewing what happened afterward. A production incident is a live failure or degradation affecting users or systems.

In plain words
What is it for?
Use it to classify SEV1–SEV4 incidents, coordinate incident commanders and technical leads, follow the NIST response lifecycle, and run a blameless post-mortem.
Why use it?
It gives the team a shared response process and escalation path, while filtering out false alarms and reducing the chance of repeated incidents.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to classify SEV1–SEV4 incidents, coordinate incident commanders and technical leads, follow the NIST response lifecycle, and run a blameless post-mortem.

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Install with agentmods
npx agentmods add skills/tmj-90/gaffer/incident-response
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add tmj-90/gaffer --skill incident-response
Clone the repo
git clone --depth 1 https://github.com/tmj-90/gaffer

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for incident-response

README.md
[![agentmods](https://agentmods.dev/badge/skills/tmj-90/gaffer/incident-response.svg)](https://agentmods.dev/skills/tmj-90/gaffer/incident-response)
Your own site
<a href="https://agentmods.dev/skills/tmj-90/gaffer/incident-response"><img src="https://agentmods.dev/badge/skills/tmj-90/gaffer/incident-response.svg" alt="Measured on agentmods" height="20"></a>
Per session 85 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 892 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00085 $0.00892
Opus 5 $0.00043 $0.00446
Sonnet 5 $0.00017 $0.00178
Haiku 4.5 $0.00009 $0.00089

Measured 8d ago against content hash 7a36be922e45, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

incident-response scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

runner/skills/incident-response/SKILL.md · 63 lines

How it starts

The opening of the file, as written. The whole thing — 63 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Manage declared incidents end-to-end

Triage fast, escalate correctly, contain early, learn systematically. An incident not reviewed is an incident that will recur.

Severity framework

Severity Impact Response time Escalation
SEV1 Customer data loss, full outage, SLA breach Immediate — wake on-call lead Engineering director + comms
SEV2 Major feature degraded, >20% error rate < 15 min On-call lead + affected team
SEV3 Minor degradation, workaround available < 1h Team Slack channel
SEV4 Low impact, no SLO breach Next business day Ticket only

NIST SP 800-61 lifecycle

Detect → Triage → Contain → Eradicate → Recover → Post-mortem

Steps

  1. Detect and classify. Is this a real incident or a false positive? Check: baseline metrics normal? Alert recently changed? If false positive → suppress alert and file a tuning ticket; stop here.
  2. Declare severity. Apply the severity framework above. When in doubt, escalate up and downgrade later — under-escalation costs more than over-escalation.
  3. Assign roles. Incident commander (owns comms + decisions), tech lead (owns diagnosis + fix), comms lead (stakeholder updates). One person can cover multiple roles for SEV3/4.
  4. Contain. Isolate blast radius before root-cause analysis. Feature flag off? Rollback? Kill canary? Do the fastest safe contain action first.
  5. Diagnose. Read logs and traces chronologically from the first anomaly. Golden signals: which of latency/traffic/errors/saturation broke first? Follow the causal chain.
  6. Eradicate + recover. Apply the fix; verify with health checks and SLI recovery; confirm SLO is back inside budget.
  7. Post-mortem (mandatory for SEV1/2). Blameless — systems and processes, not people. Template: timeline, impact, root cause, contributing factors, action items with owners + due dates. Review within 5 business days.

Post-mortem template (key sections)

Read the full file on GitHub · 63 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 8d ago First seen · 63 lines · 85 tokens per session scan A 7a36be922e45

Subscribe to this mod's changes

incident-response is a skill published in the GitHub repository tmj-90/gaffer (2 stars, last pushed today), licensed Apache-2.0. It adds 85 tokens to every session and 892 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.