ClaudSkills / Engineering / engineering-misc

Blameless Postmortem

Q: What is a Claude Code skill and how does the Blameless Postmortem skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Blameless Postmortem is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: Engineering · Sub-category: engineering-misc · Last updated: 2026-05-21

type:review

Google SRE-style blameless postmortem authoring. Structure, timeline construction, contributing-factor extraction, action-item discipline, and the cultural practices that make postmortems produce learning rather than theater. Use when writing a postmortem after an incident, reviewing a draft postmortem, running a postmortem review meeting, building a postmortem template, or teaching a team how to write postmortems that actually improve the system. Complements rca-human-factors (for the "why people did what they did" analysis) and the rca-classical-methods / rca-systems-theoretic / rca-causal-inference / rca-distributed-systems skills (which supply the investigation techniques that populate the postmortem's analysis section).

About this skill (catalog notes)

Blameless Postmortem includes pricing or quota commentary; at least one code block. At roughly 2,321 words the SKILL.md is on the longer end of the catalog distribution.

Indexed lastmod: 2026-05-21
Catalog position: Engineering · engineering-misc
Indexed related skills: 10

How Blameless Postmortem fits the catalog

Blameless Postmortem sits in the Engineering category under the engineering-misc sub-topic in the ClaudSkills catalog. There are 10 related skills indexed alongside it; comparing a few before installing usually reveals which fits your workflow best.

These notes are auto-generated from features detected in the SKILL.md file and from this catalog's structure — they aren't part of the source repository.

From the source SKILL.md

A postmortem is the work product that converts an incident from a surprise into learning. A blameless postmortem does this without punishing the people closest to the incident — not because punishment is wrong in principle, but because punishment destroys the reporting culture that makes further learning possible.

What this skill does

Blameless Postmortem is a community-contributed Claude Code skill in the engineering-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/blameless-postmortem/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when writing a postmortem after an incident, reviewing a draft postmortem, running a postmortem review meeting, building a postmortem template, or teaching a team how to write postmortems that actually improve the system. Complements rca-human-factors (for the "why people did what they did" analysis) and the rca-classical-methods / rca-systems-theoretic / rca-causal-inference / rca-distributed-systems skills (which supply the investigation techniques that populate the postmortem's analysis section).

Who uses this skill

The Blameless Postmortem Claude Code skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 117,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/blameless-postmortem
curl -L https://claudskills.com/skills/blameless-postmortem/SKILL.md \
  -o ~/.claude/skills/blameless-postmortem/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/blameless-postmortem/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/blameless-postmortem/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\blameless-postmortem\SKILL.md on Windows. See the full install guide for step-by-step instructions.

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Blameless Postmortem Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/blameless-postmortem/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the Blameless Postmortem skill do?

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

When should I use the Blameless Postmortem skill?

Use Blameless Postmortem when your Claude Code task falls under the Engineering category — specifically in the engineering misc area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Blameless Postmortem" or describe the task and let Claude pick). Browse related skills at /category/engineering/.

What is a Claude Code skill and how does the Blameless Postmortem skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Blameless Postmortem is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at /learn/what-is-a-claude-skill/.

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

ClaudSkills. (2026). Blameless Postmortem [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/blameless-postmortem/

BibTeX

@misc{blameless-postmortem-2026,
  author    = {ClaudSkills},
  title     = {Blameless Postmortem [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/blameless-postmortem/}
}

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