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Skillshub common-security-standards

Universal security protocols for safe, resilient software. Use when implementing authentication, encryption, authorization, or any security-sensitive feature. (triggers: **/*.ts, **/*.tsx, **/*.go, **/*.dart, **/*.java, **/*.kt, **/*.swift, **/*.py, security, encrypt, authenticate, authorize)

install
source · Clone the upstream repo
git clone https://github.com/ComeOnOliver/skillshub
Claude Code · Install into ~/.claude/skills/
T=$(mktemp -d) && git clone --depth=1 https://github.com/ComeOnOliver/skillshub "$T" && mkdir -p ~/.claude/skills && cp -r "$T/skills/HoangNguyen0403/agent-skills-standard/common-security-standards" ~/.claude/skills/comeonoliver-skillshub-common-security-standards && rm -rf "$T"
manifest: skills/HoangNguyen0403/agent-skills-standard/common-security-standards/SKILL.md
source content

Security Standards

Priority: P0 (CRITICAL)

🛡 Data Safeguarding

  • Zero Trust: Never trust external input. Sanitize and validate every data boundary (API, UI, CSV).
  • Least Privilege: Grant minimum necessary permissions to users, services, and containers.
  • No Hardcoded Secrets: Use environment variables or secret managers. Never commit keys or passwords.
  • Encryption: Use modern, collision-resistant algorithms (AES-256 for data-at-rest; TLS 1.3 for data-in-transit).
  • PII Logging: Never log PII (email, phone, names). Mask sensitive fields before logging.

🧱 Secure Coding Practices

  • Injection Prevention: Use parameterized queries or ORMs to stop SQL, Command, and XSS injections.
  • Dependency Management: Regularly scan (
    audit
    ) and update third-party libraries to patch CVEs.
  • Secure Auth: Implement Multi-Factor Authentication (MFA) and secure session management.
  • Error Privacy: Never leak stack traces or internal implementation details to the end-user.

🔍 Continuous Security

  • Shift Left: Integrate security scanners (SAST/DAST) early in the CI/CD pipeline.
  • Data Minimization: Collect and store only the absolute minimum data required for the business logic.
  • Logging: Maintain audit logs for sensitive operations (Auth, Deletion, Admin changes).

Anti-Patterns

  • No secrets in Git: Use secret managers or env vars; rotate immediately if exposed.
  • No raw SQL strings: Use parameterized queries or ORMs — always.
  • No stacktraces in prod: Return generic error codes; log full detail server-side.
  • No default passwords: Force rotation on first use with strong entropy requirements.

📚 References