incident-response

incident-response is a skill for Claude Code, Codex from NickCrew/Claude-Cortex. It costs 32 tokens per session (695 once invoked), scanned A, original, MIT.

A guide for managing software incidents such as outages, service slowdowns, or data loss from detection through review.

In plain words
What is it for?
Use it for production incident triage, on-call procedures, escalation paths, resilience design, chaos engineering, and postmortems.
Why use it?
It gives teams a consistent way to assess impact, coordinate a response, limit cascading failures, and learn from what happened.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/nickcrew/claude-cortex/incident-response
Any agent
npx skills add NickCrew/Claude-Cortex --skill incident-response
Clone the repo
git clone --depth 1 https://github.com/NickCrew/Claude-Cortex

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/nickcrew/claude-cortex/incident-response.svg)](https://agentmods.dev/skills/nickcrew/claude-cortex/incident-response)
Your own site
<a href="https://agentmods.dev/skills/nickcrew/claude-cortex/incident-response"><img src="https://agentmods.dev/badge/skills/nickcrew/claude-cortex/incident-response.svg" alt="Measured on agentmods" height="20"></a>
Per session 32 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 695 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00032 $0.00695
Opus 5 $0.00016 $0.00347
Sonnet 5 $0.00006 $0.00139
Haiku 4.5 $0.00003 $0.00069

Measured 2d ago against content hash cfc626cb1247, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, 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 2d 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.

skills/incident-response/SKILL.md · 95 lines

How it starts

The opening of the file, as written. The whole thing — 95 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Incident Response

Structured incident management from detection through postmortem, with resilience patterns for preventing and containing cascading failures.

When to Use

  • Production incident in progress (outage, degradation, data loss)
  • Designing circuit breakers, bulkheads, or fallback strategies
  • Conducting or planning chaos engineering exercises
  • Writing or reviewing postmortem documents
  • Establishing on-call procedures and escalation paths

Avoid when:

  • The issue is a development-time bug with no production impact
  • Designing general system architecture (use system-design instead)

Quick Reference

Topic Load reference
Triage Framework skills/incident-response/references/triage-framework.md
Postmortem Patterns skills/incident-response/references/postmortem-patterns.md

Incident Response Workflow

Phase 1: Detect

  • Alert fires or user report received
  • Confirm the issue is real (not a false positive)
  • Identify affected services and user impact scope

Phase 2: Triage

  • Classify severity (P0-P3)
  • Assign incident commander
  • Open communication channel (war room, Slack channel)
  • Begin status page updates

Phase 3: Contain

  • Stop the bleeding: rollback, feature flag, traffic shift
  • Prevent cascade: circuit breakers, load shedding, bulkhead isolation
  • Communicate: stakeholder updates every 15 minutes for P0/P1

Phase 4: Resolve

  • Implement fix (minimal viable fix first)
  • Validate in staging if time permits
  • Deploy with monitoring and rollback plan ready
  • Confirm recovery with metrics returning to baseline

Phase 5: Postmortem

  • Document timeline within 48 hours
  • Conduct blameless review with all participants
  • Identify root cause and contributing factors
  • Assign action items with owners and deadlines
  • Update runbooks and alerting based on lessons learned

Severity Framework

Level Impact Response Time Examples
P0 Complete outage, data loss, security breach Immediate (< 5 min) Service down, data corruption, credential leak
P1 Major feature broken, significant user impact < 30 min Payment processing failed, auth broken for region
P2 Degraded performance, partial feature loss < 4 hours Elevated latency, non-critical feature unavailable
P3 Minor issue, workaround available Next business day UI glitch, slow report generation, cosmetic error

Read the full file on GitHub · 95 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 2d ago First seen · 95 lines · 32 tokens per session scan A cfc626cb1247

Subscribe to this mod's changes

incident-response is a skill published in the GitHub repository NickCrew/Claude-Cortex (37 stars, last pushed 2mo ago), licensed MIT. It adds 32 tokens to every session and 695 once invoked, about $0.0002 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 2026-09-03.

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