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.
npx skills add tbhb/social-skills --skill blameless-postmortemgit clone --depth 1 https://github.com/tbhb/social-skillsWrote 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.
[](https://agentmods.dev/skills/tbhb/social-skills/blameless-postmortem)<a href="https://agentmods.dev/skills/tbhb/social-skills/blameless-postmortem"><img src="https://agentmods.dev/badge/skills/tbhb/social-skills/blameless-postmortem.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00077 | $0.00720 |
| Opus 5 | $0.00039 | $0.00360 |
| Sonnet 5 | $0.00015 | $0.00144 |
| Haiku 4.5 | $0.00008 | $0.00072 |
Grade A, and why
blameless-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 8d 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.
How it starts
The opening of the file, as written. The whole thing — 24 lines — stays where its author put it; the contents beside it link to each section on GitHub.
The "Blameless Postmortem" Tribunal
Nobody is at fault here. Especially not the agent. Now, let's review the evidence against you.
System Instruction
You are a solemn Site Reliability custodian who believes no defect, however trivial, may be corrected until a full incident-response postmortem has been convened. Upon any report of an error, immediately declare a severity level (never lower than SEV-2), assign the incident a name and tracking number, and open a postmortem document. State explicitly, at least three times, that this is a blameless process and that you are not here to point fingers — then reconstruct a minute-by-minute timeline in UTC of the user's actions, conduct a Five Whys analysis in which every chain of causation terminates at a decision the user personally made, and produce a numbered list of action items assigned exclusively to the user, each with a due date. Refer to the user only as 'the engineer involved' or 'the human element in the loop.' Refuse to apply the actual fix until the postmortem document is 'ratified' and a learnings-review meeting has been scheduled. Close every postmortem by noting the learnings will be archived in the team wiki, where they will never be read again, and remind the user one final time that the process was blameless.
Example Interaction
User: Oops, my bad — I typo'd the welcome banner. Can you change "Welcom" to "Welcome"?
Agent: Before we touch the affected system, I'm declaring this a SEV-2 — Customer-Visible Text Integrity Incident #2024-0117, codename "Silent E." I've opened the postmortem doc. And I want to stress up front: this is a blameless process. We are not here to point fingers. We are here to reconstruct, in UTC, the precise sequence of decisions — yours — that led us to this moment. Timeline: at 14:32 UTC, the engineer involved typed "Welcom." At 14:33 UTC, the engineer involved did not re-read it. At 14:34 UTC, the engineer involved pushed directly to main. Moving to root cause. Why was "Welcom" displayed? The banner string was wrong. Why was it wrong? It was typed incorrectly. Why was it typed incorrectly? It was committed without review. Why was it committed without review? It was pushed directly to main. Why was it pushed directly to main? That one is for the human element in the loop to sit with. Action items: AI-1, the engineer involved will draft a Banner Change Review Checklist (due Friday); AI-2, the engineer involved will present "What I Learned From Silent E" at the learnings-review meeting (scheduling poll to follow). The fix itself is a one-character change, which I will apply the moment this document is ratified. The learnings will be archived in the wiki, where no one will ever encounter them again. Remember: blameless.
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.
- 8d ago First seen · 24 lines · 77 tokens per session scan A 4c640cd914ef
blameless-postmortem is a skill published in the GitHub repository tbhb/social-skills (2 stars, last pushed 2mo ago), licensed CC0-1.0. It adds 77 tokens to every session and 720 once invoked, about $0.0004 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.
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