AI agent skills for security review

Security skills teach an agent to read code the way an attacker does: follow untrusted input to where it is executed, rendered, or concatenated into a query. The ones worth having name a threat model rather than grepping for banned functions, and they rank findings by exploitability instead of listing everything. Treat the output as a lead list for a human, not a clearance — an agent that found nothing has told you very little.

People land here searching for “claude code security review skill”, “agent skill to find vulnerabilities”, “owasp skill for ai agents”.

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How to install a security review skill

  1. Compare the skills. Read the security review skills below — each page shows the full SKILL.md, its safety verdict, and the capabilities it declares.
  2. Install it. Run npx skillmds@latest add <owner>/<name>. The CLI writes the skill into every agent directory it detects, or use --agent to pin one.
  3. Use it. Restart your agent. It loads the skill on demand the next time you ask for something that matches — you do not have to name the skill.

What makes a good security review skill?

Security skills teach an agent to read code the way an attacker does: follow untrusted input to where it is executed, rendered, or concatenated into a query. The ones worth having name a threat model rather than grepping for banned functions, and they rank findings by exploitability instead of listing everything. Treat the output as a lead list for a human, not a clearance — an agent that found nothing has told you very little.

Every skill listed here is a plain SKILL.md file in the format Anthropic documents for Agent Skills, read unchanged by Cursor, OpenAI Codex and 60+ agents. Each passes a safety review before it is publicly listed; the verdict and declared capabilities are on every skill's page.

Frequently asked questions

What is an agent skill for security review?

Security skills teach an agent to read code the way an attacker does: follow untrusted input to where it is executed, rendered, or concatenated into a query. The ones worth having name a threat model rather than grepping for banned functions, and they rank findings by exploitability instead of listing everything. Treat the output as a lead list for a human, not a clearance — an agent that found nothing has told you very little.

Can a security skill replace a real audit?

No. It is good at the classes of bug that are visible in the code — injection, unsafe deserialization, hardcoded secrets, missing authorization checks — and blind to everything that depends on deployment, configuration, or the behaviour of services it cannot see. Use it to find the obvious things before a human looks for the subtle ones.

Which agents can use these security review skills?

Any agent that reads SKILL.md files: Claude Code, Claude.ai, Cursor, OpenAI Codex, Windsurf, OpenCode and 60+ others. The format is not vendor-specific, so the same file works everywhere — each agent just keeps its skills in a different directory, listed at /agents.

Are these security review skills free?

Yes. Searching, reading and installing skills on SkillMD is free and needs no account. Individual skills carry their own licence, shown on each skill's page.