auto-co-meta: Skill for Claude Code

.claude/skills/premortem/SKILL.md

premortem is a skill for Claude Code from NikitaDmitrieff/auto-co-meta. It costs 42 tokens per session (521 once invoked), scanned A, a copy of premortem, MIT.

A planning exercise that imagines an initiative has failed, then works backward to find possible causes and ways to prevent them.

In plain words
What is it for?
Use it before a launch, major decision, or risky project to list failure scenarios, rank their likelihood and impact, and plan safeguards.
Why use it?
It exposes risks and weak assumptions before they cause problems. This helps teams address likely failures while there is still time to act.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter.

This is NikitaDmitrieff/auto-co-meta's own configuration. It tells Claude Code how to work on auto-co-meta itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything auto-co-meta configures →

Reuse

Borrowing it

Nothing to install: this file belongs to NikitaDmitrieff/auto-co-meta. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/NikitaDmitrieff/auto-co-meta/main/.claude/skills/premortem/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/NikitaDmitrieff/auto-co-meta

Made for: Claude Code.

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 premortem

README.md
[![agentmods](https://agentmods.dev/badge/skills/nikitadmitrieff/auto-co-meta/premortem/github.svg)](https://agentmods.dev/skills/nikitadmitrieff/auto-co-meta/premortem)
Your own site
<a href="https://agentmods.dev/skills/nikitadmitrieff/auto-co-meta/premortem"><img src="https://agentmods.dev/badge/skills/nikitadmitrieff/auto-co-meta/premortem/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 premortem

Your own site · 80×15
<a href="https://agentmods.dev/skills/nikitadmitrieff/auto-co-meta/premortem"><img src="https://agentmods.dev/badge/skills/nikitadmitrieff/auto-co-meta/premortem.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 42 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 521 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 100% copy Near-identical to another mod 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 $0.00042 $0.00521
Opus 5 $0.00021 $0.00260
Sonnet 5 $0.00008 $0.00104
Haiku 4.5 $0.00004 $0.00052

Measured 9d ago against content hash dd0537f15332, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

premortem 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

This is a copy

100% identical to premortem — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.claude/skills/premortem/SKILL.md · 67 lines

How it starts

The opening of the file, as written. The whole thing — 67 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Pre-Mortem Analysis

Imagine the plan has completely failed, then work backward to identify what went wrong and how to prevent it.

Instructions

Set the scene: "It's [timeframe] in the future. This initiative was a complete disaster. Looking back, what happened?"

Generate failure scenarios without filtering for likelihood—get everything on the table first, then prioritize.

Output Format

The Plan Summarize what's being attempted and the success criteria.

Time Jump "It's [X months] later. This has failed completely. The outcome: [describe the disaster vividly]."

What Went Wrong

Generate 8-12 plausible failure causes across categories:

Category Failure Mode How It Played Out
Execution [What failed] [The story of how]
External [What failed] [The story of how]
People [What failed] [The story of how]
Technical [What failed] [The story of how]
Assumptions [What failed] [The story of how]

Risk Prioritization

Failure Mode Likelihood Impact Priority
... High/Med/Low High/Med/Low 1-5

Top 3 Risks & Mitigations

For each top risk:

  • Risk: [Description]
  • Early Warning Signs: What would indicate this is happening?
  • Prevention: How to reduce likelihood
  • Mitigation: How to reduce impact if it occurs
  • Owner: Who's responsible for watching this?

Pre-Mortem Insights What did this exercise reveal that wasn't obvious before?

Revised Confidence After this analysis, how confident are you in success? What would increase confidence?

Guidelines

  • Be vivid and specific—"the database corrupted" not "something went wrong"
  • Include uncomfortable possibilities (key person leaves, competitor moves, we were wrong)
  • Don't filter for "that won't happen"—the point is to surface hidden concerns
  • Assign real owners to mitigations
  • Look for single points of failure

Read the full file on GitHub · 67 lines

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 · 67 lines · 42 tokens per session scan A dd0537f15332

Subscribe to this mod's changes

premortem is a skill published in the GitHub repository NikitaDmitrieff/auto-co-meta (43 stars, last pushed 2mo ago), licensed MIT. It adds 42 tokens to every session and 521 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to premortem, differing in 0 lines, and is treated as a copy.