Secure Code Guardian

Quality score: 70/100 · Category: Security · Sub-category: appsec-build

Use when implementing authentication/authorization, securing user input, or preventing OWASP Top 10 vulnerabilities — including custom security implementations such as hashing passwords with bcrypt/argon2, sanitizing SQL queries with parameterized statements, configuring CORS/CSP headers, validating input with Zod, and setting up JWT tokens. Invoke for authentication, authorization, input validation, encryption, OWASP Top 10 prevention, secure session management, and security hardening. For pre-built OAuth/SSO integrations or standalone security audits, consider a more specialized skill.

What this skill does

Secure Code Guardian is a production-ready Claude Code skill (quality score 70/100) in the appsec-build sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/secure-code-guardian/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when implementing authentication/authorization, securing user input, or preventing OWASP Top 10 vulnerabilities — including custom security implementations such as hashing passwords with bcrypt/argon2, sanitizing SQL queries with parameterized statements, configuring CORS/CSP headers, validating input with Zod, and setting up JWT tokens. Invoke for authentication, authorization, input validation, encryption, OWASP Top 10 prevention, secure session management, and security hardening.

Who uses this skill

The Secure Code Guardian skill is built for security engineers, penetration testers, DevSecOps practitioners, and development teams hardening codebases and infrastructure. It is part of the open ClaudSkills registry, a community-curated catalog of 15,000+ capabilities you can install for Claude Code — the Claude CLI agent.

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/secure-code-guardian
curl -L https://claudskills.com/skills/secure-code-guardian/SKILL.md \
  -o ~/.claude/skills/secure-code-guardian/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/secure-code-guardian/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/secure-code-guardian/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\secure-code-guardian\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

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Part of ClaudSkills — the open registry for Claude Code skills. · What's New · Install guide · About · llms.txt

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