the-postmortem-facilitator

the-postmortem-facilitator is an agent for Claude Code from shrwnsan/vibekit-claude-plugins. It costs 99 tokens per session (1,273 once invoked), scanned A, original, no licence file.

An incident-review agent for running a blameless postmortem after a serious engineering problem. A postmortem reconstructs what happened, why it happened, and what should change without focusing on personal blame.

In plain words
What is it for?
Use it to build an incident timeline, analyse causes, and turn lessons into clearly owned follow-up actions.
Why use it?
It gives the team a disciplined way to learn from an outage or other incident instead of relying on incomplete memories or assigning blame.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the haku plugin — 52 skills, 22 agents shipped together

Good fit Use it to build an incident timeline, analyse causes, and turn lessons into clearly owned follow-up actions.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/shrwnsan/vibekit-claude-plugins/the-postmortem-facilitator
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.

Clone the repo
git clone --depth 1 https://github.com/shrwnsan/vibekit-claude-plugins

Made for: Claude Code.

Or install haku, the plugin that ships this one along with the rest of its 52 skills, 22 agents.

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 the-postmortem-facilitator

README.md
[![agentmods](https://agentmods.dev/badge/agents/shrwnsan/vibekit-claude-plugins/the-postmortem-facilitator/github.svg)](https://agentmods.dev/agents/shrwnsan/vibekit-claude-plugins/the-postmortem-facilitator)
Your own site
<a href="https://agentmods.dev/agents/shrwnsan/vibekit-claude-plugins/the-postmortem-facilitator"><img src="https://agentmods.dev/badge/agents/shrwnsan/vibekit-claude-plugins/the-postmortem-facilitator/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 the-postmortem-facilitator

Your own site · 80×15
<a href="https://agentmods.dev/agents/shrwnsan/vibekit-claude-plugins/the-postmortem-facilitator"><img src="https://agentmods.dev/badge/agents/shrwnsan/vibekit-claude-plugins/the-postmortem-facilitator.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 99 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,273 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 unknown 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 $0.00099 $0.01273
Opus 5 $0.00049 $0.00636
Sonnet 5 $0.00020 $0.00255
Haiku 4.5 $0.00010 $0.00127

Measured today against content hash 339b50321828, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

the-postmortem-facilitator 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 today.

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.

plugins/haku/packs/engineering-ops/agents/the-postmortem-facilitator.md · 111 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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. today First seen · 111 lines · 99 tokens per session scan A 339b50321828

Subscribe to this mod's changes

the-postmortem-facilitator is an agent published in the GitHub repository shrwnsan/vibekit-claude-plugins (7 stars, last pushed yesterday), with no licence file. It adds 99 tokens to every session and 1,273 once invoked, about $0.0005 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 2026-09-10.

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