Agentic Tool Integration
samugit83/redamon
Wiring a new tool the AI agent can call (not the recon pipeline): the tool registry, the phase map, the hardcoded dispatch chokepoint, and the duplicated execution paths that make a tool work in…
Security review of MCP (Model Context Protocol) server implementations and configurations.
Install MCP Server Review
$ npx skills add OWASP/secure-agent-playbook --skill mcp-server-review -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install OWASP/secure-agent-playbook mcp-server-review --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/OWASP/secure-agent-playbook.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugins/ai-security-skills/skills/mcp-server-review .claude/skills/mcp-server-review && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "mcp-server-review" agent skill from https://github.com/OWASP/secure-agent-playbook/tree/main/plugins/ai-security-skills/skills/mcp-server-review into .claude/skills/mcp-server-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mcp-server-review", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/OWASP/secure-agent-playbook/tree/main/plugins/ai-security-skills/skills/mcp-server-reviewType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add OWASP/secure-agent-playbook --skill mcp-server-review -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install OWASP/secure-agent-playbook mcp-server-review --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/OWASP/secure-agent-playbook.git skills-src && mkdir -p .agents/skills && cp -r skills-src/plugins/ai-security-skills/skills/mcp-server-review .agents/skills/mcp-server-review && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "mcp-server-review" agent skill from https://github.com/OWASP/secure-agent-playbook/tree/main/plugins/ai-security-skills/skills/mcp-server-review into .agents/skills/mcp-server-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mcp-server-review", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add OWASP/secure-agent-playbook --skill mcp-server-review -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install OWASP/secure-agent-playbook mcp-server-review --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/OWASP/secure-agent-playbook.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/plugins/ai-security-skills/skills/mcp-server-review .cursor/skills/mcp-server-review && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "mcp-server-review" agent skill from https://github.com/OWASP/secure-agent-playbook/tree/main/plugins/ai-security-skills/skills/mcp-server-review into .cursor/skills/mcp-server-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mcp-server-review", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/OWASP/secure-agent-playbook.git --path plugins/ai-security-skills/skills/mcp-server-review--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add OWASP/secure-agent-playbook --skill mcp-server-review -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install OWASP/secure-agent-playbook mcp-server-review --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/OWASP/secure-agent-playbook.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/plugins/ai-security-skills/skills/mcp-server-review .gemini/skills/mcp-server-review && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "mcp-server-review" agent skill from https://github.com/OWASP/secure-agent-playbook/tree/main/plugins/ai-security-skills/skills/mcp-server-review into .gemini/skills/mcp-server-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mcp-server-review", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install OWASP/secure-agent-playbook mcp-server-reviewInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add OWASP/secure-agent-playbook --skill mcp-server-review -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/OWASP/secure-agent-playbook.git skills-src && mkdir -p .github/skills && cp -r skills-src/plugins/ai-security-skills/skills/mcp-server-review .github/skills/mcp-server-review && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "mcp-server-review" agent skill from https://github.com/OWASP/secure-agent-playbook/tree/main/plugins/ai-security-skills/skills/mcp-server-review into .github/skills/mcp-server-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mcp-server-review", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add OWASP/secure-agent-playbook --skill mcp-server-review -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install OWASP/secure-agent-playbook mcp-server-review --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/OWASP/secure-agent-playbook.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/plugins/ai-security-skills/skills/mcp-server-review .opencode/skills/mcp-server-review && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "mcp-server-review" agent skill from https://github.com/OWASP/secure-agent-playbook/tree/main/plugins/ai-security-skills/skills/mcp-server-review into .opencode/skills/mcp-server-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mcp-server-review", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
mcp-server-review- GitHub stars
- 187
- Token cost
- ~574 tokens
- SKILL.md length
- 239 words
- Files
- 1
- Skills in repo
- 14
- Repo updated
- First seen
- Licence
- CC-BY-4.0
At a glance
Security review of MCP (Model Context Protocol) server implementations and configurations.
- Works in 7 steps: Transport & Authentication — Check… → Tool Permission Audit — For each exposed… → Input Validation & Injection — For each… → …
- Auditing MCP server source code
- SKILL.md covers Steps, Output and OWASP References
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
MCP Server Review is an agent skill from OWASP/secure-agent-playbook. Security review of MCP (Model Context Protocol) server implementations and configurations. Use when auditing MCP server source code, evaluating third-party MCP servers before installation, or reviewing Claude Code MCP integrations for overpermissioning, injection risks, and data exposure.
Its SKILL.md is about 570 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Agent Workflows, covering MCP servers. It works with Model Context Protocol. The repository describes itself as: OWASP Secure Agent Playbook Project. The licence is CC-BY-4.0.
When your agent uses it
- Auditing MCP server source code
- Evaluating third-party MCP servers before installation
- Reviewing Claude Code MCP integrations for overpermissioning
- Injection risks
Example prompts
- “/mcp-server-review”
Workflow steps
7 steps, taken from the first numbered list in SKILL.md.
- Transport & Authentication — Check transport type (stdio vs HTTP/SSE), authentication on network transports, TLS enforcement, CORS policy…
- Tool Permission Audit — For each exposed tool: document what it claims to do vs what it actually does (read source). Classify as…
- Input Validation & Injection — For each tool parameter: check for command injection (shell interpolation), path traversal (../ in file…
- Data Exposure — Assess MCP resources for secrets/PII leakage, tool outputs for excessive data, error messages for internal paths/stack…
- Scope & Sandboxing — Check file system restrictions, network scope (can it reach cloud metadata 169.254.169.254?), process permissions…
- Supply Chain — Verify source trustworthiness, run SCA on dependencies, check for lockfiles and reproducible builds, assess update mechanism.
- Client Configuration — Review MCP client config for absolute/specific server paths, minimized env var passthrough, and command injection…
What it can do on your machine
Read from SKILL.md and the folder at commit 1b5fd4c. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
MCP Server Review loads about 574 tokens when it runs. Until then it costs about 77 tokens; SKILL.md has 239 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from OWASP/secure-agent-playbook at commit 1b5fd4c, republished under its CC-BY-4.0 licence (© OWASP). 239 words, ~574 tokens.
Download SKILL.mdSave it as
.claude/skills/mcp-server-review/SKILL.md (or your agent's skills folder).- name
- mcp-server-review
- description
- Security review of MCP (Model Context Protocol) server implementations and configurations. Use when auditing MCP server source code, evaluating third-party MCP servers before installation, or reviewing Claude Code MCP integrations for overpermissioning, injection risks, and data exposure.
- license
- CC-BY-4.0
MCP Server Security Review
Audit an MCP server by following the full procedure in plays/mcp-server-review.md.
Steps
Transport & Authentication — Check transport type (stdio vs HTTP/SSE), authentication on network transports, TLS enforcement, CORS policy, origin validation.
Tool Permission Audit — For each exposed tool: document what it claims to do vs what it actually does (read source). Classify as READ-ONLY, MUTATION, DESTRUCTIVE, NETWORK, or CREDENTIAL-ACCESS. Flag tools with broader capabilities than descriptions suggest, free-form inputs, or credential access.
Input Validation & Injection — For each tool parameter: check for command injection (shell interpolation), path traversal (../ in file paths), SQL injection (unparameterized queries), SSRF (user-supplied URLs hitting internal services), and template injection.
Data Exposure — Assess MCP resources for secrets/PII leakage, tool outputs for excessive data, error messages for internal paths/stack traces, and logging for sensitive data capture.
Scope & Sandboxing — Check file system restrictions, network scope (can it reach cloud metadata 169.254.169.254?), process permissions, resource limits, and dependency surface.
Supply Chain — Verify source trustworthiness, run SCA on dependencies, check for lockfiles and reproducible builds, assess update mechanism.
Client Configuration — Review MCP client config for absolute/specific server paths, minimized env var passthrough, and command injection safety in args.
Output
Server overview, tool risk matrix, findings using templates/finding.md, and specific configuration recommendations.
OWASP References
- LLM01: Prompt Injection (via tool descriptions and outputs)
- LLM02: Sensitive Information Disclosure
- LLM05: Improper Output Handling
- LLM06: Excessive Agency (overpermissioned tools)
- A01: Broken Access Control
- A03: Injection
© OWASP, CC-BY-4.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in plugins/ai-security-skills/skills/mcp-server-review of OWASP/secure-agent-playbook.
Open the folder on GitHubat commit 1b5fd4c
Compare with similar skills
MCP Server Review next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| MCP Server Review this skillOWASP/secure-agent-playbook | 187 | — | ~574 | Automated safety check: Pass | CC-BY-4.0 | |
| Agentic Tool Integrationsamugit83/redamon | 3k | — | ~1.3k | Automated safety check: Pass | MIT | |
| Sap Dependency Securitysecondsky/sap-skills | 462 | — | ~5.9k | Automated safety check: Warn | GPL-3.0 | |
| Security Scanaffaan-m/ECC | 276k | 5 repos | ~1.1k | Automated safety check: Pass | MIT | |
| Protect MCP Setupwshobson/agents | 40k | — | ~2.1k | Automated safety check: Pass | MIT | |
| Skill Security Auditsickn33/agentic-awesome-skills | 47k | 1 repos | ~1.4k | Automated safety check: Pass | CC0-1.0 |
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Aif
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Set up agent context for a project. An agent skill from unxed/f4.
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Related
Works with
Categories
Questions about MCP Server Review
What does MCP Server Review do?
Security review of MCP (Model Context Protocol) server implementations and configurations. MCP Server Review is an agent skill from OWASP/secure-agent-playbook. Security review of MCP (Model Context Protocol) server implementations and configurations.
When should I use MCP Server Review?
MCP Server Review fits situations like: auditing MCP server source code; evaluating third-party MCP servers before installation; reviewing Claude Code MCP integrations for overpermissioning; injection risks.
How do I install MCP Server Review in Claude Code?
Run `npx skills add OWASP/secure-agent-playbook --skill mcp-server-review -a claude-code`. Or copy the skill folder (plugins/ai-security-skills/skills/mcp-server-review in OWASP/secure-agent-playbook) into .claude/skills/mcp-server-review in your project. Claude Code loads it when a task matches its description.
How do I install MCP Server Review in Codex?
Run `npx skills add OWASP/secure-agent-playbook --skill mcp-server-review -a codex`. Or copy the skill folder (plugins/ai-security-skills/skills/mcp-server-review in OWASP/secure-agent-playbook) into .agents/skills/mcp-server-review in your project. Codex loads it when a task matches its description.
Can I use MCP Server Review in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add OWASP/secure-agent-playbook --skill mcp-server-review -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/mcp-server-review, .gemini/skills/mcp-server-review, .github/skills/mcp-server-review and .opencode/skills/mcp-server-review in your project.
What does MCP Server Review need to run?
SKILL.md names no scripts, command-line tools or credentials: MCP Server Review is instructions for the agent only.
Does MCP Server Review access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is MCP Server Review safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does MCP Server Review use?
MCP Server Review is published under the CC-BY-4.0 licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does MCP Server Review use?
About 574 tokens (SKILL.md is roughly 2.3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to MCP Server Review?
Skills that share tags, products or a category with MCP Server Review: Agentic Tool Integration (samugit83/redamon, 3k stars), Sap Dependency Security (secondsky/sap-skills, 462 stars), Security Scan (affaan-m/ECC, 276k stars) and Protect MCP Setup (wshobson/agents, 40k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains MCP Server Review?
OWASP (a GitHub organization) maintains it in OWASP/secure-agent-playbook, which has 187 GitHub stars. The repository holds 14 skills in this directory. The repository was last updated on September 25, 2026.
Source: OWASP/secure-agent-playbook on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.