security-patterns

Context-aware security analysis that verifies functionality works securely. Use PROACTIVELY when reviewing code that handles user input, authentication, authorization, file uploads, API integrations, or sensitive data. First understands project's security model and functionality requirements, then checks for security vulnerabilities that affect functionality. Provides specific remediation with code examples aligned with project patterns. Focuses on security issues that block or degrade functionality, not generic OWASP checklist.