Master Security: AI Agent Skill for Robust Code Review

Master Security: AI Agent Skill for Robust Code Review

The "Master Security" skill enhances AI coding agents like Claude Code, Cursor, and Codex with the capability to perform thorough security reviews of code that interfaces with critical trust boundaries. This skill is designed to preempt potential vulnerabilities by applying security best practices when dealing with authentication, authorization, user input, database interactions, and more.

What this skill does

• Names the trust boundary before any feature involving security considerations is implemented.
• Applies secure defaults to each risk class encountered, ensuring consistent security measures.
• Employs a methodical approach to identify and address potential exploits before deployment.
• Focuses on threat modeling in proportion to the potential impact, e.g., increased scrutiny for file uploads.

Who it is for

This skill is intended for developers and software engineering teams that utilize AI coding agents such as Claude Code, Cursor, and Codex. It is particularly beneficial for those focused on building secure applications and maintaining robust software architectures.

Use cases

• Reviewing code for applications that involve sensitive operations like user authentication and authorization.
• Auditing existing codebases to harden security and prepare for penetration testing.
• Assisting in the security review process when developers mention specific concerns such as Supabase/Firebase rules, IDOR, XSS, SSRF, injection, CORS, or leaked keys.

Technical details

• Integrates with AI coding platforms such as Claude Code, Cursor, and Codex.
• Utilizes agent-skills and aiapplication keywords.
• Incorporates a methodology designed to match levels of scrutiny to potential impact, ensuring efficiency and thoroughness.

For authorised security testing, defensive research and educational use only.

Source & Licence

This package is built on open-source work published by kulchankas (kulchankas/paranoid) and distributed under MIT. The original licence text and copyright notice are included in your download.

Personal and commercial use, modification and redistribution are permitted, provided the original copyright and licence notice are retained.

Your purchase covers curation, licence verification, packaging, documentation and instant delivery. It does not grant exclusive rights to the underlying open-source code, which remains available under its original licence.

Delivery & Support

• Delivery: instant — a secure download link is emailed to you as soon as payment is confirmed.
• Format: ZIP archive containing the skill files, documentation and the original licence.
• Support: support@mcpcart.com — we aim to reply within 2 business days.
• Updates: updates are included only where stated on this page.

Refunds

This is a digital product delivered immediately after purchase. By completing your order you request immediate delivery and acknowledge that, once the download has been accessed, the statutory right to cancel no longer applies to the extent permitted by law. Refund requests are handled in accordance with our published Refund Policy.

Claude, Codex, Gemini and Cursor are trademarks of their respective owners. MCP Cart is an independent marketplace and is not affiliated with, endorsed by, or sponsored by any of them. Compatibility references describe interoperability only.