kousen Security Code Review
This skill is explicit-invoke only (disable-model-invocation: true) and read-only (allowed-tools covers reading + searching, no editing). It surfaces findings — fixing them is a separate, deliberate step.
Categories to check
- Injection: SQL, NoSQL, OS command, LDAP, XPath, template
- XSS: reflected, stored, DOM-based; encoding context (HTML body vs. attribute vs. JS context)
- AuthN / AuthZ: missing checks, broken object-level authorization, privilege escalation
- Input validation: trust boundaries, type confusion, deserialization
- Sensitive data exposure: secrets in code, tokens in logs, PII in error responses, weak hashing
- Cryptography: hardcoded keys, ECB mode, weak algorithms (MD5/SHA-1 for security), missing IV randomness
Output
For each finding, report:
- File and line (Path:Line format so the user can jump to it)
- Severity (critical / high / medium / low / informational)
- What's wrong
- What an attack would look like
- A recommended fix direction (not the actual code change — that's a separate skill)
Group findings by severity. Don't speculate about issues you can't see in the code; if a check requires runtime context you don't have, say so.