incident-postmortem

incident-postmortem is a skill for Claude Code, Codex from The-AI-Directory-Company/agents-and-skills. It costs 36 tokens per session (1,546 once invoked), scanned A, original, MIT.

A blameless record of a service failure, covering what happened, who was affected, how it was fixed, and what should change next.

In plain words
What is it for?
Use it to reconstruct incident timelines, describe user and business impact, analyze contributing factors, and assign follow-up work.
Why use it?
It turns an outage into shared learning instead of personal blame, while preserving the facts needed to prevent repeats.

Skill for Claude CodeCodex

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

Good fit Use it to reconstruct incident timelines, describe user and business impact, analyze contributing factors, and assign follow-up work.

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Install with agentmods
npx agentmods add skills/the-ai-directory-company/agents-and-skills/incident-postmortem
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 The-AI-Directory-Company/agents-and-skills --skill incident-postmortem
Clone the repo
git clone --depth 1 https://github.com/The-AI-Directory-Company/agents-and-skills

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-postmortem

README.md
[![agentmods](https://agentmods.dev/badge/skills/the-ai-directory-company/agents-and-skills/incident-postmortem/github.svg)](https://agentmods.dev/skills/the-ai-directory-company/agents-and-skills/incident-postmortem)
Your own site
<a href="https://agentmods.dev/skills/the-ai-directory-company/agents-and-skills/incident-postmortem"><img src="https://agentmods.dev/badge/skills/the-ai-directory-company/agents-and-skills/incident-postmortem/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for incident-postmortem

Your own site · 80×15
<a href="https://agentmods.dev/skills/the-ai-directory-company/agents-and-skills/incident-postmortem"><img src="https://agentmods.dev/badge/skills/the-ai-directory-company/agents-and-skills/incident-postmortem.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 36 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,546 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 $0.00036 $0.01546
Opus 5 $0.00018 $0.00773
Sonnet 5 $0.00007 $0.00309
Haiku 4.5 $0.00004 $0.00155

Measured 9d ago against content hash d36bfe44dd95, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

incident-postmortem 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 9d 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-postmortem/SKILL.md · 131 lines

How it starts

The opening of the file, as written. The whole thing — 131 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Incident Postmortem

Before you start

Gather the following from the user:

  1. What happened? (Service name, symptoms, error messages, alerts that fired)
  2. When did it happen? (Detection time, start time if known, resolution time — all in UTC)
  3. Who was involved? (On-call responder, escalation chain, any external parties)
  4. What was the blast radius? (Affected users, regions, services, revenue impact)
  5. What fixed it? (Mitigation steps taken, in order)

If the user gives you a vague summary ("the site went down for a bit"), push back: "What specific errors did users see? Which services were affected? When exactly did alerts fire vs. when was the issue resolved?"

Postmortem template

Use the following structure for every postmortem:

Incident Summary

Write 3-5 sentences covering: what broke, who was affected, how long it lasted, and how it was resolved. This should be understandable by someone outside the team.

On 2024-03-12 at 14:32 UTC, the checkout service began returning 500 errors
for all payment processing requests. Approximately 12,000 users were unable to
complete purchases during the 47-minute outage. The issue was caused by an
expired TLS certificate on the payment gateway. Service was restored at 15:19
UTC by rotating the certificate.

Timeline

Use UTC timestamps. Include detection lag (time between incident start and first alert). Mark each entry with a category tag.

14:32 UTC  [ONSET]     First 500 errors appear in payment service logs
14:38 UTC  [DETECTION] PagerDuty alert fires for checkout error rate > 5%
14:40 UTC  [RESPONSE]  On-call engineer acknowledges alert
14:45 UTC  [DIAGNOSIS] Engineer identifies TLS handshake failures in logs
14:52 UTC  [ESCALATION] Platform team paged for certificate access
15:10 UTC  [MITIGATION] New certificate issued and deployed to staging
15:15 UTC  [MITIGATION] Certificate deployed to production
15:19 UTC  [RESOLUTION] Error rates return to baseline, incident closed

Read the full file on GitHub · 131 lines

Files

What ships with it

5 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. 9d ago First seen · 131 lines · 36 tokens per session scan A d36bfe44dd95

Subscribe to this mod's changes

incident-postmortem is a skill published in the GitHub repository The-AI-Directory-Company/agents-and-skills (2 stars, last pushed 5mo ago), licensed MIT. It adds 36 tokens to every session and 1,546 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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