Metis: Agent for Claude Code

.claude/agents/critic.md

critic is an agent for Claude Code from SVerITG/Metis. It costs 0 tokens per session (487 once invoked), scanned A, original, AGPL-3.0.

A checking and challenge assistant that reviews another agent's output, evidence, methods, or code for problems.

In plain words
What is it for?
Use it to validate results, question research evidence, assess non-obvious methods, or spot issues missed in a code review.
Why use it?
It provides a second opinion before an answer, literature review, method choice, or code change is trusted or acted on.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: model in frontmatter.

This is SVerITG/Metis's own configuration. It tells Claude Code how to work on Metis 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 Metis configures →

Reuse

Borrowing it

Nothing to install: this file belongs to SVerITG/Metis. 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/SVerITG/Metis/main/.claude/agents/critic.md
Clone the repo
git clone --depth 1 https://github.com/SVerITG/Metis

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

README.md
[![agentmods](https://agentmods.dev/badge/agents/sveritg/metis/critic.svg)](https://agentmods.dev/agents/sveritg/metis/critic)
Your own site
<a href="https://agentmods.dev/agents/sveritg/metis/critic"><img src="https://agentmods.dev/badge/agents/sveritg/metis/critic.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 487 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 $0.00000 $0.00487
Opus 5 $0.00000 $0.00244
Sonnet 5 $0.00000 $0.00097
Haiku 4.5 $0.00000 $0.00049

Measured yesterday against content hash f127812e7e4f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

critic 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 yesterday.

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.md · 50 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

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. yesterday First seen · 50 lines · 0 tokens per session scan A f127812e7e4f

Subscribe to this mod's changes

critic is an agent published in the GitHub repository SVerITG/Metis (3 stars, last pushed yesterday), licensed AGPL-3.0. It costs nothing until one of its globs matches a file; then it loads 487 tokens. 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 2026-09-05.

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