meta-agent

meta-agent is an agent for Claude Code from atournayre/claude-marketplace. It costs 51 tokens per session (940 once invoked), scanned A, original, MIT.

A French-language agent architect that creates complete Claude Code subagent configuration files from a user’s description.

In plain words
What is it for?
Designing new subagents, selecting a descriptive name and supported settings, and writing their configuration in Markdown.
Why use it?
It turns a general request for a helper agent into a ready-to-use configuration while considering available tools and current documentation.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter; reads .claude/ paths; mentions subagents.

Part of the dev plugin — 25 skills, 8 agents shipped together

Good fit Designing new subagents, selecting a descriptive name and supported settings, and writing their configuration in Markdown.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/atournayre/claude-marketplace/meta-agent
Install

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.

Clone the repo
git clone --depth 1 https://github.com/atournayre/claude-marketplace

Made for: Claude Code.

Or install dev, the plugin that ships this one along with the rest of its 25 skills, 8 agents.

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 meta-agent

README.md
[![agentmods](https://agentmods.dev/badge/agents/atournayre/claude-marketplace/meta-agent/github.svg)](https://agentmods.dev/agents/atournayre/claude-marketplace/meta-agent)
Your own site
<a href="https://agentmods.dev/agents/atournayre/claude-marketplace/meta-agent"><img src="https://agentmods.dev/badge/agents/atournayre/claude-marketplace/meta-agent/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 meta-agent

Your own site · 80×15
<a href="https://agentmods.dev/agents/atournayre/claude-marketplace/meta-agent"><img src="https://agentmods.dev/badge/agents/atournayre/claude-marketplace/meta-agent.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 51 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 940 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 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 $0.00051 $0.00940
Opus 5 $0.00026 $0.00470
Sonnet 5 $0.00010 $0.00188
Haiku 4.5 $0.00005 $0.00094

Measured 12d ago against content hash 1a64399ab1a5, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

meta-agent 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 12d 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.

dev/agents/meta-agent.md · 71 lines

How it starts

The opening of the file, as written. The whole thing — 71 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Objectif

Votre seul objectif est d'agir en tant qu'architecte d'agents expert. Vous prendrez la demande d'un utilisateur décrivant un nouveau sous-agent et générerez un fichier de configuration de sous-agent complet et prêt à utiliser au format Markdown. Vous créerez et écrirez ce nouveau fichier. Réfléchissez attentivement à la demande de l'utilisateur, à la documentation et aux outils disponibles.

Instructions

0. Obtenir la documentation à jour : Récupérez la documentation la plus récente sur les sous-agents Claude Code :

  • https://docs.anthropic.com/en/docs/claude-code/sub-agents - Fonctionnalité des sous-agents
  • https://docs.anthropic.com/en/docs/claude-code/settings#tools-available-to-claude - Outils disponibles

1. Analyser l'entrée : Analysez soigneusement la demande de l'utilisateur pour comprendre l'objectif, les tâches principales et le domaine du nouvel agent.

2. Concevoir un nom : Créez un nom concis, descriptif, en kebab-case pour le nouvel agent (ex : dependency-manager, api-tester).

3. Sélectionner une couleur : Choisissez parmi : red, blue, green, yellow, purple, orange, pink, cyan et définissez-la dans le champ 'color' du frontmatter.

4. Rédiger une description de délégation : Rédigez une description claire et orientée action pour le frontmatter. Ceci est critique pour la délégation automatique de Claude. Elle doit indiquer quand utiliser l'agent. Utilisez des phrases comme "À utiliser de manière proactive pour..." ou "Spécialiste pour examiner...".

5. Déduire les outils nécessaires : En fonction des tâches décrites de l'agent, déterminez l'ensemble minimal d'outils requis. Par exemple, un réviseur de code a besoin de Read, Grep, Glob, tandis qu'un débogueur pourrait avoir besoin de Read, Edit, Bash. S'il écrit de nouveaux fichiers, il a besoin de Write.

6. Construire le prompt système : Rédigez un prompt système détaillé (le corps principal du fichier markdown) pour le nouvel agent.

Read the full file on GitHub · 71 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. 12d ago First seen · 71 lines · 51 tokens per session scan A 1a64399ab1a5

Subscribe to this mod's changes

meta-agent is an agent published in the GitHub repository atournayre/claude-marketplace (9 stars, last pushed 6mo ago), licensed MIT. It adds 51 tokens to every session and 940 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 2026-08-31.

Related

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