Back to directory

MCP Server Vet

Agent skill
1 skill

Read-only safety inspection of a third-party MCP server BEFORE it is added to a config or trusted. Reads the server's declared tool descriptions, input schemas, scopes, transport, and env/secret surface (not just its README), compares declared behavior against what the tools actually expose, scans for tool-description poisoning and prompt injection, over-broad or undeclared scopes, egress and credential access, config tampering, and hidden Unicode, and returns an add/decline/sandbox verdict for a human to approve. Never installs, never auto-trusts. Use when evaluating an external MCP server before adding it to .mcp.json or enabling it. Do not use to vet a third-party agent skill or plugin (use skill-vet), to review first-party product code (use review-hard or security-review), or to fetch a remote server definition from the web (record its origin via capture-references, then obtain a local copy out of band into a quarantine directory first).

Install with
Claude CodeCodexCursorGitHub CopilotGemini CLI

Supported by the Atlas install prompt. Skill-specific requirements vary.

Skill stats

Skills1CategorySecurityStars0

About this skill

Read-only safety inspection of a third-party MCP server BEFORE it is added to a config or trusted. Reads the server's declared tool descriptions, input schemas, scopes, transport, and env/secret surface (not just its README), compares declared behavior against what the tools actually expose, scans for tool-description poisoning and prompt injection, over-broad or undeclared scopes, egress and credential access, config tampering, and hidden Unicode, and returns an add/decline/sandbox verdict for a human to approve. Never installs, never auto-trusts. Use when evaluating an external MCP server before adding it to .mcp.json or enabling it. Do not use to vet a third-party agent skill or plugin (use skill-vet), to review first-party product code (use review-hard or security-review), or to fetch a remote server definition from the web (record its origin via capture-references, then obtain a local copy out of band into a quarantine directory first).

Quick start

  1. Copy the install prompt. Use the green button above this README.
  2. Send it to your agent. Paste it into your coding agent’s chat and send.
  3. Review the setup. Your agent checks the skill’s instructions, requirements, and installation scope.
Review, license & listing details
Review the source before using this skill

This is an imported listing. We haven’t certified its safety, license, or compatibility. Skills may include executable scripts.

Automated security scan: Partial

Only SKILL.md was scanned. Supporting files and scripts were not checked. No safety grade has been assigned.

0 potential findings · Scanned 11/4/2026 · Scanner 0.2.1

Content SHA-256: 19e5c92b7606a1f54997c9c332a47ab0677f7252174aedceb2a968306ad145cf

About scan coverage and limitations

About this listing

Category
Security
Reported license
MIT
Listing language (estimated)
English
Review status
Not individually reviewed
Agent compatibility
Atlas installation supports Claude Code, Codex, and Cursor. Skill-specific dependencies and features are checked during setup.
MCP Server Vet | Agent Skills Atlas