How do I install the performing-security-code-review Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/security-agent/SKILL.md and restart Claude Code. Both flows are detailed at https://claudskills.com/install/.

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

ClaudSkills / Security / web-security

performing-security-code-review

Category: Security · Sub-category: web-security · Last updated: 2026-05-21

type:audit type:review

This skill enables Claude to conduct a security-focused code review using the security-agent plugin. It analyzes code for potential vulnerabilities like SQL injection, XSS, authentication flaws, and insecure dependencies. Claude uses this skill when the user explicitly requests a security audit, asks for a code review with a focus on security, or mentions security concerns related to code. The security-agent plugin then provides structured security findings with severity ratings, code locations, impact assessments, and remediation guidance.

What this skill does

performing-security-code-review is a community-contributed Claude Code skill in the web-security sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/security-agent/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The performing-security-code-review Claude Code skill is built for security engineers, penetration testers, DevSecOps practitioners, and development teams hardening codebases and infrastructure. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 69,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/security-agent
curl -L https://claudskills.com/skills/security-agent/SKILL.md \
  -o ~/.claude/skills/security-agent/SKILL.md

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

Skills live at ~/.claude/skills/security-agent/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\security-agent\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.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Attribution & license

Source: https://github.com/jeremylongshore/claude-code-plugins-plus-skills/blob/HEAD/backups/skill-structure-cleanup-20251108-073936/plugins/examples/security-agent/skills/security-agent/SKILL.md
License: MIT
Author: jeremylongshore
Website: https://tonsofskills.com

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performing-security-code-review

What this skill does

Who uses this skill

How to install

Manual install (2 steps)

One-click install via the desktop app

Attribution & license

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