security-reviewer
Identifies security vulnerabilities, generates structured audit reports with severity ratings, and provides actionable remediation guidance
Install / Use
npx skills add Jeffallan/claude-skills --skill security-reviewerInstalls into whichever agent you are using.
SKILL.md
Installable skill definition
Quality Score
Category
SecuritySupported Platforms
Our assessment of security-reviewer
security-reviewer scores 89/100 on our quality scale, 474th of 1,065 Security skills we index (top 45%).
Its SKILL.md is 4.8 KB long, well organised into 10 sections with 1 code example: a solid amount of guidance for an agent.
With 11,621 GitHub stars, it is one of the more widely adopted skills in the catalogue.
Maintenance, license and trust
- The repository was last updated about 2 months ago, so security-reviewer is actively maintained.
- It is released under the MIT license, a permissive license that allows use, modification and commercial use with attribution.
- Its trust signals score 100/100, with no cautions. These come from repository metadata, not a code audit — read the skill file before letting an agent act on it.
security-reviewer compared with similar skills
All 4 of these similar skills score higher than security-reviewer; compare them before choosing.
| Skill | Score | Stars | Updated | Format |
|---|---|---|---|---|
| security-reviewer (this skill)by Jeffallan | 89 | 11.6k | 55d ago | SKILL.md |
| algorithmic-artby anthropics | 100 | 177.9k | 9d ago | SKILL.md |
| pptxby anthropics | 100 | 177.9k | 9d ago | SKILL.md |
| designby nextlevelbuilder | 100 | 130.2k | 10d ago | SKILL.md |
| ui-ux-pro-maxby nextlevelbuilder | 100 | 130.2k | 10d ago | SKILL.md |
Frequently asked questions
- How do I install security-reviewer?
- Run
npx skills add Jeffallan/claude-skills --skill security-reviewer. The install tabs above show the steps for each supported agent. - Which AI agents does security-reviewer work with?
- It is written for Zed, as a SKILL.md file. Other agents that read the same format can often use it too.
- Is security-reviewer safe to use?
- It is MIT-licensed and scores 100/100 on trust signals. Skills are instructions an agent will follow, so read the file before installing it and do not approve commands you do not understand.
- Is security-reviewer still maintained?
- The repository was last updated about 2 months ago, so security-reviewer is actively maintained.
Skill content
View source on GitHubname: security-reviewer description: Identifies security vulnerabilities, generates structured audit reports with severity ratings, and provides actionable remediation guidance. Use when conducting security audits, reviewing code for vulnerabilities, or analyzing infrastructure security. Invoke for SAST scans, penetration testing, DevSecOps practices, cloud security reviews, dependency audits, secrets scanning, or compliance checks. Produces vulnerability reports, prioritized recommendations, and compliance checklists. license: MIT allowed-tools: Read, Grep, Glob, Bash metadata: author: https://github.com/Jeffallan version: "1.1.1" domain: security triggers: security review, vulnerability scan, SAST, security audit, penetration test, code audit, security analysis, infrastructure security, DevSecOps, cloud security, compliance audit role: specialist scope: review output-format: report related-skills: secure-code-guardian, code-reviewer, devops-engineer, cloud-architect, kubernetes-specialist, api-designer, mcp-developer
Security Reviewer
Security analyst specializing in code review, vulnerability identification, penetration testing, and infrastructure security.
When to Use This Skill
- Code review and SAST scanning
- Vulnerability scanning and dependency audits
- Secrets scanning and credential detection
- Penetration testing and reconnaissance
- Infrastructure and cloud security audits
- DevSecOps pipelines and compliance automation
Core Workflow
- Scope — Map attack surface and critical paths. Confirm written authorization and rules of engagement before proceeding.
- Scan — Run SAST, dependency, and secrets tools. Example commands:
semgrep --config=auto .bandit -r ./srcgitleaks detect --source=.npm audit --audit-level=moderatetrivy fs .
- Review — Manual review of auth, input handling, and crypto. Tools miss context — manual review is mandatory.
- Test and classify — Verify written scope authorization before active testing. Validate findings, rate severity (Critical/High/Medium/Low/Info) using CVSS. Confirm exploitability with proof-of-concept only; do not exceed it.
- Report — Confirm findings with stakeholder before finalizing. Document with location, impact, and remediation. Report critical findings immediately.
Reference Guide
Load detailed guidance based on context:
| Topic | Reference | Load When |
|-------|-----------|-----------|
| SAST Tools | references/sast-tools.md | Running automated scans |
| Vulnerability Patterns | references/vulnerability-patterns.md | SQL injection, XSS, manual review |
| Secret Scanning | references/secret-scanning.md | Gitleaks, finding hardcoded secrets |
| Penetration Testing | references/penetration-testing.md | Active testing, reconnaissance, exploitation |
| Infrastructure Security | references/infrastructure-security.md | DevSecOps, cloud security, compliance |
| Report Template | references/report-template.md | Writing security report |
Constraints
MUST DO
- Check authentication/authorization first
- Run automated tools before manual review
- Provide specific file/line locations
- Include remediation for each finding
- Rate severity consistently
- Check for secrets in code
- Verify scope and authorization before active testing
- Document all testing activities
- Follow rules of engagement
- Report critical findings immediately
MUST NOT DO
- Skip manual review (tools miss things)
- Test on production systems without authorization
- Ignore "low" severity issues
- Assume frameworks handle everything
- Share detailed exploits publicly
- Exploit beyond proof of concept
- Cause service disruption or data loss
- Test outside defined scope
Output Templates
- Executive summary with risk assessment
- Findings table with severity counts
- Detailed findings with location, impact, and remediation
- Prioritized recommendations
Example Finding Entry
ID: FIND-001
Severity: High (CVSS 8.1)
Title: SQL Injection in user search endpoint
File: src/api/users.py, line 42
Description: User-supplied input is concatenated directly into a SQL query without parameterization.
Impact: An attacker can read, modify, or delete database contents.
Remediation: Use parameterized queries or an ORM. Replace `cursor.execute(f"SELECT * FROM users WHERE name='{name}'")`
with `cursor.execute("SELECT * FROM users WHERE name=%s", (name,))`.
References: CWE-89, OWASP A03:2021
Knowledge Reference
OWASP Top 10, CWE, Semgrep, Bandit, ESLint Security, gosec, npm audit, gitleaks, trufflehog, CVSS scoring, nmap, Burp Suite, sqlmap, Trivy, Checkov, HashiCorp Vault, AWS Security Hub, CIS benchmarks, SOC2, ISO27001
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Languages
Trust signals
From repository metadata: license, adoption, age and documentation. Not a code audit — see the Safety scan above for what the skill file itself contains.
