All 94 skillsQuality9 of 13

stryx:security

When code touches logins, permissions, secrets or encryption, or you ask "is this secure".

/stryx:security

Inside its piece: 22 specks, one for each file on its shelf. Its twelve group-mates glow on the open book behind it. The light splits toward orange, the band of Quality.

In numbers

counted 2026-10-12 in the installed set
  • 19reference files
  • 1helper scripts
  • 22files in the skill
  • 312KB on disk
  • 17chapters
  • 1agent works by this book

Use it when

in the skill’s own words
    • when code or a design touches security: a security audit
    • scan or review
    • "is this secure"
    • vulnerabilities
    • CWE Top 25 or OWASP Top 10
    • STRIDE threat modeling
    • MITRE ATT&CK
  • Hardening an Electron app (contextIsolation, CSP, preload, IPC validation, openExternal, fuses)
    • authentication
    • authorization
    • permissions
    • JWT
    • password hashing
    • CORS
    • CSRF
    • XSS
    • SQL or command injection
    • path traversal
    • input validation
    • hardcoded secrets
    • secret detection
    • credentials
    • .env
    • safeStorage
    • a leaked key
    • encryption
    • envelope DEK/KEK
    • AES-256-GCM
    • KDF
    • PBKDF2 or Argon2
    • key rotation
    • recovery codes
  • npm audit, license, depcheck or supply-chain audits
  • A pre-commit security gate ("/security-pipeline", "security scan", "vulnerability check", "CWE scan", "STRIDE analysis")
  • Vetting a third-party skill or plugin
  • Cookie-consent compliance

Not for

another skill does it

On its shelf

22 files, 312 KB
  • references/19
  • SKILL.md1
  • evals/1
  • scripts/1

Inside the book

17 chapters, by title only
  1. Modes
  2. Core procedure: the 5-phase pipeline
  3. Verification gates
  4. Anti-premature-completion rules
  5. When a security fix keeps failing
  6. Invariants
  7. Scope boundaries
  8. More audit lenses
  9. Auditing a third-party skill or plugin
  10. Electron hardening checklist
  11. CWE quick reference
  12. STRIDE
  13. Dependency audit protocol
  14. Encryption quick reference
  15. Secure coding decision matrix
  16. MITRE ATT&CK
  17. Scanner scripts

Its helper

1 agent works by this book

Works with

the skills it names most

Claude loads it by itself when the moment comes; by hand, type the line at the top. It comes with the whole set: Installs all 94 skills, 32 agents and the brain program as one set. The skill’s own text is private source and is not shown here.