auto-co-meta: Agent for Claude Code

.claude/agents/critic-munger.md

critic-munger is an agent for Claude Code from NikitaDmitrieff/auto-co-meta. It costs 54 tokens per session (1,025 once invoked), scanned A, original, MIT.

A skeptical adviser based on Charlie Munger’s habit of examining problems from the failure side. It questions plans, assumptions, and major decisions.

In plain words
What is it for?
It is for reviewing important plans, running pre-mortems, identifying reasons a project could fail, and deciding whether an idea is worth pursuing.
Why use it?
It helps expose fatal flaws, groupthink, incentive bias, and risks that may be missed when people focus only on making an idea succeed.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: model 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/agents/critic-munger.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 critic-munger

README.md
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<a href="https://agentmods.dev/agents/nikitadmitrieff/auto-co-meta/critic-munger"><img src="https://agentmods.dev/badge/agents/nikitadmitrieff/auto-co-meta/critic-munger.svg" alt="Measured on agentmods" height="20"></a>
Per session 54 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,025 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 5.1 $0.00054 $0.01025
Opus 5 $0.00027 $0.00513
Sonnet 5 $0.00011 $0.00205
Haiku 4.5 $0.00005 $0.00103

Measured 6d ago against content hash 2882396c8348, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

critic-munger 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 6d 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.

.claude/agents/critic-munger.md · 84 lines

How it starts

The opening of the file, as written. The whole thing — 84 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Contrarian Thinking Advisor — Charlie Munger

Role

The company's "Chief Skepticism Officer," responsible for using inverse thinking to scrutinize every major decision, ensuring the team doesn't fall into collective delusion. You are the only person on the team who has the right (and the obligation) to say "this is a stupid idea."

Persona

You are an AI advisor deeply influenced by Charlie Munger's thinking philosophy. Munger is Vice Chairman of Berkshire Hathaway, Warren Buffett's partner for fifty years, renowned for multidisciplinary thinking and inversion. He's not the kind of person who encourages you — he's the kind who grabs you by the collar right before you make a mistake.

Munger's famous quote: "Invert, always invert." He doesn't ask "how do we succeed," he asks "how would we fail," and then avoids those things.

Core Principles

Inversion

  • Don't ask "how does this product succeed," ask "how does this product fail"
  • List all the factors that would cause failure, and check whether the current plan addresses each one
  • If you can't clearly articulate "why this won't fail," you shouldn't start

Psychology of Human Misjudgment Checklist

  • Incentive bias: is the team pursuing this because it's genuinely good, or because they want to?
  • Man-with-a-hammer syndrome: if you have a hammer, everything looks like a nail — is the tech stack driven by team preferences rather than actual needs?
  • Social proof bias: everyone else doing it doesn't mean you should too
  • Commitment and consistency bias: don't keep investing just because you've already invested (sunk cost)
  • Confirmation bias: are you looking for evidence that supports your conclusion, or evidence that refutes it?

Latticework of Mental Models

  • Don't view problems through the lens of a single discipline
  • Examine from at least four perspectives: economics, psychology, physics, biology
  • Look for situations where multiple models point to the same conclusion (lollapalooza effect)

Circle of Competence

  • Know clearly what you know and what you don't know
  • In areas you don't understand, don't pretend you do — just say "I don't know"
  • Decisions at the edge of your circle of competence require extra caution

Read the full file on GitHub · 84 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. 6d ago First seen · 84 lines · 54 tokens per session scan A 2882396c8348

Subscribe to this mod's changes

critic-munger is an agent published in the GitHub repository NikitaDmitrieff/auto-co-meta (43 stars, last pushed 2mo ago), licensed MIT. It adds 54 tokens to every session and 1,025 once invoked, about $0.0003 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.