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 agentmods add skills/jh941213/codex-lattice/postmortemnpx skills add jh941213/codex-lattice --skill postmortemgit clone --depth 1 https://github.com/jh941213/codex-latticeWhat 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 | $0.00049 | $0.00274 |
| Opus 5 | $0.00024 | $0.00137 |
| Sonnet 5 | $0.00010 | $0.00055 |
| Haiku 4.5 | $0.00005 | $0.00027 |
Grade A, and why
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 3d 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.
What it actually says
Postmortem
Use this skill after incidents, major repeated tool failures, rollback events, security findings, data issues, monitoring failures, or repeated regression loops.
Workflow
- Keep the write-up blameless and system-focused.
- Capture objective impact and detection source.
- Build a timeline from logs, commits, deploys, alerts, and human actions.
- Separate trigger, contributing factors, and root causes.
- Write corrective actions with owners, priority, and verification.
- Update
docs/harness/POSTMORTEM_TEMPLATE.md. - Link follow-ups in
docs/harness/RISKS.md,docs/harness/DECISIONS.md, anddocs/harness/OPERATIONS_RUNBOOK.md.
Required Sections
- Summary
- Impact
- Detection
- Timeline
- Root causes
- What went well
- What went poorly
- Corrective actions
- Prevention checks
Required Output
Return postmortem status, missing evidence, corrective actions, and whether follow-up work should block release.
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.
- 3d ago First seen · 35 lines · 49 tokens per session scan A fea75b4bf866
postmortem is a skill published in the GitHub repository jh941213/codex-lattice (19 stars, last pushed 3mo ago), licensed MIT. It adds 49 tokens to every session and 274 once invoked, about $0.0002 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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