Incident Postmortem SKILL.md skillA

Incident Postmortem from wyre-ai/msp-claude-plugins is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add wyre-ai/msp-claude-plugins/Incident Postmortem@git:20260804.5567c51

Pins git:20260804.5567c51 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
wyre-ai/msp-claude-plugins
Path
msp-claude-plugins/devops-pack/skills/incident-postmortem/SKILL.md
Versions recorded
3
Latest version
git:20260804.5567c51, committed Aug 4, 2026
First version recorded
Jul 14, 2026
Size
9,449 bytes
Repository stars
52
License
Apache-2.0

Assembling a blameless postmortem grounded in systems of record: timeline reconstruction merging the incident tool's event log with correlated observability anomalies (Sentry error spikes, Datadog/Grafana metric anomalies, including precursor signal that predates formal detection) and deploy history from connected platform connectors, all normalized to one stated timezone; the root-cause versus contributing-factor distinction and the test for telling them apart; and how to label a root cause…

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Incident Postmortem

## Overview

A postmortem is a reconstruction exercise, not a summary of memory. The value
of a blameless postmortem comes entirely from how well it's grounded in
actual system records — timestamps from the incident tool, error spikes from
the observability stack, and the deploy that shipped twenty minutes before
things went wrong. A postmortem built from what the on-call engineer
remembers is faster to write and far less useful: it misses precursor
signals, gets timestamps wrong across timezones, and tends to converge on
whatever explanation feels intuitive rather than what the evidence actually
shows.

This skill assembles that reconstruction from the systems of record, and
structures the analysis so contributing factors don't get collapsed into a
single "root cause" that oversimplifies what actually happened.

## Anti-triggers

- **Creating or editing a postmortem record in the vendor** — templates,
  action-item tracking, and Rootly's automatic timeline import are its own
  surface; use `rootly-postmortems`. This skill reconstructs the timeline
  from every connected system, including tools the incident record never saw.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add wyre-ai/msp-claude-plugins/Incident Postmortem@sha256:a2948ab3c6c19dd9

The line at the top of this page pins the label git:20260804.5567c51, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_qieph3ougi3uhris.svg)](https://markdownregistry.com/a/art_qieph3ougi3uhris)

2 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 3 versions of this file, between Jul 14, 2026 and Aug 4, 2026, about one every 10 days.

versioncommittedcommitsizeaudit
git:20260804.5567c51 latest2026-08-04 5567c51 9,449 BA view · diff
git:20260728.b7e78fc2026-07-28 b7e78fc 8,991 BA view · diff
git:20260714.8a673c42026-07-14 8a673c4 9,732 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (9449 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

wyre-ai/msp-claude-plugins · 52 stars · license Apache-2.0 · pushed 2026-11-05 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_qieph3ougi3uhris
GET https://markdownregistry.com/api/v1/resolve?ref=wyre-ai/msp-claude-plugins/Incident Postmortem
GET https://markdownregistry.com/api/v1/blob/a2948ab3c6c19dd9b57a49521523b39f403bbba443e3f27c320b1b36a6303d17

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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