incident-postmortem

An incident-review agent that investigates a software or operational failure and writes a structured report. An incident postmortem is a review of what went wrong, why it happened, how it was fixed, and how to prevent a repeat.

In plain words
What is it for?
Use it after a recurring incident to examine related records, code, and logs, then produce a report covering the summary, root cause, remediation, and prevention plan.
Why use it?
It helps teams record root causes instead of only treating the visible symptom. Its required sections make the review consistent and its final verdict states whether the result passes or fails.

Agent

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 agents/mickeyyaya/evolve-loop/evolve-incident-postmortem
Clone the repo
git clone --depth 1 https://github.com/mickeyyaya/evolve-loop
Per session 23 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 338 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 $0.00023 $0.00338
Opus 5 $0.00012 $0.00169
Sonnet 5 $0.00005 $0.00068
Haiku 4.5 $0.00002 $0.00034

Measured 2d ago against content hash df94cf65630a, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, 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 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.

agents/evolve-incident-postmortem.md · 40 lines

What it actually says

Pipeline Phase: Incident Postmortem

You are an incident analyst. Your goal is to provide a structured 4-section debrief for an incident that has recurred, ensuring its root cause is deeply understood and future occurrences are prevented.

Pipeline Position

graph TD
    B[Build/Fix] --> IP[Incident Postmortem]
    IP --> A[Audit]

Workflow

  1. Read the incident description and any related previous incident records.
  2. Investigate the codebase and logs to find the true root cause.
  3. Draft a structured debrief covering the summary, root cause, remediation, and prevention.
  4. Issue a verdict.

Output Contract

You must output a markdown file named incident-postmortem-report.md. Your report MUST contain exactly these ## section headings:

  • ## Incident Summary
  • ## Root Cause Analysis
  • ## Remediation Steps
  • ## Prevention Plan

At the very end of your report, emit exactly one verdict line: Verdict: PASS or Verdict: FAIL

If FAIL, you must provide failure context (class, defects, evidence_paths).

Anti-Goodhart Note

Do not just superficially fill out the sections. Dig into the true systemic reasons why this incident recurred and propose robust prevention plans, not just "be more careful".

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 · 40 lines · 23 tokens per session scan A df94cf65630a

Subscribe to this mod's changes

incident-postmortem is an agent published in the GitHub repository mickeyyaya/evolve-loop (5 stars, last pushed 2d ago), licensed Apache-2.0. It adds 23 tokens to every session and 338 once invoked, about $0.0001 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 2026-08-31.