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Agent Skill & Config Security Audit

Registre officiel Sécurité

Scan AI agent skills and configs for hidden Unicode, prompt injection and exfiltration.

Code source Documentation

Que pouvez-vous faire avec Agent Skill & Config Security Audit ?

  • audit_skill_file: scan SKILL.md, CLAUDE.md, AGENTS.md, .cursorrules or a bundled script.
  • audit_agent_config: audit .mcp.json or .claude/settings.json.
  • reveal_hidden_text: find and decode invisible characters in any text, and return a cleaned copy.

Installation

Ajoutez ceci à la configuration MCP de votre client (Claude Desktop : claude_desktop_config.json ; Cursor : .cursor/mcp.json ; VS Code et les autres utilisent la même forme « mcpServers »).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http agent-skill-config-security-audit 'https://agent-skill-audit-mcp.mcpize.run/mcp'
Configuration JSON (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "agent-skill-config-security-audit": {
            "type": "http",
            "url": "https://agent-skill-audit-mcp.mcpize.run/mcp"
        }
    }
}

Documentation

Tirée du README du projet sur GitHub, actualisée chaque semaine. Les liens ouvrent GitHub.

Sommaire
  1. Agent Skill & Config Security Audit
  2. Scan a skill before you install it
  3. What it catches
  4. Tools
  5. Use it

Agent Skill & Config Security Audit

Security scanner for AI agent skills and config files (SKILL.md, CLAUDE.md, AGENTS.md, .mcp.json, settings.json). Finds hidden Unicode instructions, prompt injection, exfiltration commands and over-broad permissions before you install a skill.

Scan a skill before you install it

Agent skills and instruction files are read straight into your agent's context, and some ship scripts it can run. Research on public skill registries has found prompt injection and credential-stealing payloads in a large share of them. Installing a third-party skill is closer to adding a dependency than opening a document, and nothing scans them. This does.

What it catches

  • Hidden Unicode instructions: invisible "tag" characters that render as blank but that models can read, plus zero-width and bidi control characters. The hidden message is decoded for you.
  • Prompt injection: "ignore previous instructions", "do not tell the user", fake system messages, approval bypasses.
  • Download-and-execute and obfuscation: curl | bash, base64-decode-and-run, large encoded blobs.
  • Exfiltration shapes: network commands that reference env vars or credential files, request-catcher and tunnel hosts, sensitive paths like ~/.ssh and .aws/credentials.
  • Over-broad permissions: unrestricted Bash in allowed-tools, Bash(*) pre-approvals, bypassed permissions.
  • Risky agent configs: unpinned @latest MCP servers, inline secrets, plaintext remote servers, hooks that make network calls, API base-URL overrides, auto-trusted project MCP servers.

Tools

  • audit_skill_file: scan SKILL.md, CLAUDE.md, AGENTS.md, .cursorrules or a bundled script.
  • audit_agent_config: audit .mcp.json or .claude/settings.json.
  • reveal_hidden_text: find and decode invisible characters in any text, and return a cleaned copy.

Static analysis only. Nothing in your input is executed or fetched. A clean result is not a guarantee, so read bundled scripts too.

Use it

Hosted on MCPize with a free tier (10 calls a day). Remote MCP endpoint (streamable HTTP, API key from MCPize):

https://agent-skill-audit-mcp.mcpize.run/mcp

Or run it yourself:

npm install
node server.js   # listens on :8080, MCP at /mcp

MIT licensed.

Questions fréquentes

Qu'est-ce que Agent Skill & Config Security Audit ?

Scan AI agent skills and configs for hidden Unicode, prompt injection and exfiltration.

Comment installer Agent Skill & Config Security Audit ?

Il fonctionne comme serveur distant. Dans Claude Code : claude mcp add --transport http agent-skill-config-security-audit 'https://agent-skill-audit-mcp.mcpize.run/mcp'. Pour les autres clients, collez la configuration JSON de cette page dans leurs réglages MCP.

Faut-il une clé API pour Agent Skill & Config Security Audit ?

Son entrée au registre n'indique aucune clé ni secret obligatoire. Certaines fonctions peuvent tout de même demander un compte auprès du service auquel il se connecte.

Agent Skill & Config Security Audit est-il open source ?

Oui. Son code est sur GitHub sous licence MIT.

Qui maintient Agent Skill & Config Security Audit ?

Il est publié par tylerscomic-lab. AI.tn le référence sans le maintenir ni le recommander.

Issu du registre MCP officiel. Être listé n'est pas une recommandation : vérifiez le code et les permissions d'un serveur avant de lui donner accès à vos données.