after-action-report

after-action-report is a skill for Claude Code, Codex from rampstackco/claude-skills. It costs 139 tokens per session (2,231 once invoked), scanned A, original, MIT.

A structured review of a completed launch, incident, or project, often called a postmortem or retrospective. It reconstructs what happened, investigates causes and contributing factors, and records practical lessons without blaming individuals.

In plain words
What is it for?
Use it after incidents, major launches, sprints, quarterly work, or finished projects to build a timeline, analyse root causes, and agree on follow-up actions.
Why use it?
It helps teams learn from failures, unexpected outcomes, and recurring problems instead of repeating them. The result connects events and decisions to actions for future work.

Skill for Claude CodeCodex

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

Part of the rampstack-skills plugin — 103 skills shipped together

Good fit Use it after incidents, major launches, sprints, quarterly work, or finished projects to build a timeline, analyse root causes, and agree on follow-up actions.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/rampstackco/claude-skills/after-action-report
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 rampstackco/claude-skills --skill after-action-report
Clone the repo
git clone --depth 1 https://github.com/rampstackco/claude-skills

Made for: Claude Code, Codex.

Or install rampstack-skills, the plugin that ships this one along with the rest of its 103 skills.

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 after-action-report

README.md
[![agentmods](https://agentmods.dev/badge/skills/rampstackco/claude-skills/after-action-report/github.svg)](https://agentmods.dev/skills/rampstackco/claude-skills/after-action-report)
Your own site
<a href="https://agentmods.dev/skills/rampstackco/claude-skills/after-action-report"><img src="https://agentmods.dev/badge/skills/rampstackco/claude-skills/after-action-report/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 after-action-report

Your own site · 80×15
<a href="https://agentmods.dev/skills/rampstackco/claude-skills/after-action-report"><img src="https://agentmods.dev/badge/skills/rampstackco/claude-skills/after-action-report.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 139 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,231 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00139 $0.02231
Opus 5 $0.00069 $0.01115
Sonnet 5 $0.00028 $0.00446
Haiku 4.5 $0.00014 $0.00223

Measured 9d ago against content hash 97c20ae6885f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

after-action-report 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

skills/after-action-report/SKILL.md · 289 lines

How it starts

The opening of the file, as written. The whole thing — 289 lines — stays where its author put it; the contents beside it link to each section on GitHub.

After-Action Report

Run a structured retrospective on a launch, incident, or completed project. Produce actionable lessons, not just a document.

This skill is for after-the-fact analysis. For active incident response, use incident-response. For planning launches, use launch-runbook.


When to use

  • After any incident (any severity)
  • After every major launch
  • At the end of a project (sprint retro, quarterly retro, project closeout)
  • When a recurring issue has happened enough times to demand investigation
  • When a decision didn't work out and the team wants to learn

When NOT to use

  • During an active incident (use incident-response)
  • For pre-launch planning (use launch-runbook)
  • For one-off bug fixes that don't merit broad analysis

Required inputs

  • The event being analyzed (incident, launch, project)
  • A timeline reconstructed from logs, chat, tickets
  • Participant accounts of what they observed and did
  • Outcomes and impact (what actually happened to users, the business)

The framework: blameless analysis

The most important principle: blameless. Without it, retrospectives produce hidden information and theatrical lessons rather than real ones.

What blameless means

  • Focus on systems, not individuals
  • Assume everyone made reasonable decisions given what they knew at the time
  • The question is "why was this decision reasonable to make?" not "who screwed up?"
  • Fixing the system means the next person in that situation succeeds where this person didn't

What blameless does not mean

  • No accountability (action items still have owners)
  • No hard truths (sometimes the system is broken in obvious ways)
  • No standards (some patterns of failure are individual, not systemic)
  • No discomfort (real reflection is uncomfortable)

The framework: 6 sections

A complete AAR covers six sections.

1. Summary

A 2 to 3 paragraph overview. Captures:

  • What happened
  • Impact (users, business, time)
  • Root cause (in plain language)
  • Top action items

Read the full file on GitHub · 289 lines

Files

What ships with it

1 file 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 · 289 lines · 139 tokens per session scan A 97c20ae6885f

Subscribe to this mod's changes

after-action-report is a skill published in the GitHub repository rampstackco/claude-skills (830 stars, last pushed yesterday), licensed MIT. It adds 139 tokens to every session and 2,231 once invoked, about $0.0007 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 2026-08-30.

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