Guide · Agent skill
How to use the Security Auditor agent skill
Updated · written with AI from the project's own documentation and checked against our catalogue data
The Security Auditor skill (skill-security-auditor) gives an AI agent a structured playbook for reviewing source code, configuration files and infrastructure for security problems. It is aimed at developers doing a first-pass review of their own project, and at students or reviewers who want a consistent checklist and report format. After this guide you will know what the skill does, how to install it, how to ask for an audit in plain language, and what its limits are.
Security Auditoreigent-ai/eigent · Apache-2.0 Download the skill Quick start
- 1Download the ZIP. Get the skill-security-auditor ZIP from the resource page.
- 2Unzip into a skills folder. Unzip it into ~/.claude/skills/ for all projects, or into the project's .claude/skills/ folder for one project.
- 3Or upload in the Claude apps. In the Claude apps, open Settings → Capabilities → Skills and upload the skill.
- 4Install Python 3. Make sure Python 3 is available, since the bundled scan scripts need it.
- 5Ask for an audit. Describe the project and the goal, for example a security audit before release.
- 6Run the scanner if needed. Use the documented scan commands against the project folder to get pattern-match output for the review.
- 7Verify and act on findings. Check each finding by hand, fix critical and high items first, and get a human review before production.
What are agent skills, and what does this one do?
An agent skill is a folder of instructions and optional files that an AI agent loads when a request matches the skill's description. This one is named skill-security-auditor and is licensed under Apache-2.0.
When installed, the agent gets a security-audit playbook. It knows common vulnerability classes such as SQL injection, XSS, command injection and path traversal, works through an OWASP Top 10 checklist, and can write a severity-ranked audit report using a template.
- Reviews source code, configuration files and infrastructure for security issues
- Checks for hardcoded secrets and credentials, auth and authorization gaps, and insecure config defaults
- Checks dependencies for known CVEs, using external tools you install yourself
- Runs two bundled Python scripts that pattern-match a project folder and uses their output in the review
How do you install the Security Auditor skill?
Download the skill ZIP from the resource page, then unzip it into one of two places. Use ~/.claude/skills/ to make the skill available to you across projects, or use a project's .claude/skills/ folder to limit it to that project.
You can also upload the skill in the Claude apps. Open Settings, go to Capabilities, and use the Skills section to upload it.
- Personal install: unzip into ~/.claude/skills/
- Project install: unzip into the project's .claude/skills/ folder
- Claude apps: Settings → Capabilities → Skills, then upload the skill
Which requests trigger the skill?
The agent loads the skill when your request matches its description. Plain wording works. The skill's description lists trigger phrases such as "security audit", "vulnerability scan", "code review for security", "find secrets", "check for vulnerabilities", "OWASP", "CVE", and questions about code security.
Name the area you care about. The skill covers vulnerability scanning, secrets detection, auth and authorization review, dependency CVE checks, config audits and report generation.
- "Run a security audit on this project before I release it."
- "Find secrets or API keys hardcoded in this repo."
- "Check this Flask app for SQL injection and XSS."
- "Review the auth and authorization logic in these API routes."
- "Audit our Dockerfile and CI config for insecure defaults."
- "Write a severity-ranked security report for this codebase."
What does a typical audit look like?
The skill's workflow starts with reconnaissance: identifying languages, frameworks, entry points and how authentication is handled. It then moves to secrets detection, vulnerability scanning against the OWASP checklist, dependency review, configuration review and an authentication and authorization review.
To run the bundled scanner yourself, the skill documents this command against a project directory. The text format is the readable option for checking output.
python scripts/scan_project.py /path/to/project
python scripts/scan_project.py /path/to/some/project --format text
python scripts/scan_secrets.py /path/to/some/project --format textWhat do the bundled scripts check?
The scan_project.py script performs a lightweight scan for hardcoded secrets, dangerous function calls and insecure patterns. The scan_secrets.py script focuses on secrets, using the regex patterns listed in references/secrets-patterns.md. The agent uses the results as input to its review rather than as a final verdict.
The skill also includes reference files: references/vulnerability-patterns.md with detailed vulnerable and safe code examples across Python, JavaScript and Go, and references/secrets-patterns.md with secret detection patterns.
- Hardcoded secrets such as API keys, tokens, connection strings with passwords and private keys
- Risky calls such as eval or os.system
- Insecure config values such as DEBUG: true, ALLOWED_HOSTS: ["*"] and SSL_VERIFY: false
What do you need before you start?
The skill needs Python 3 to run the bundled scan scripts. It runs scripts and does not use the network. Dependency checks are optional and rely on external tools that are not bundled: pip-audit, safety, npm with npx auditjs, govulncheck, or Trivy. Install whichever matches your stack.
- Required: Python 3
- Optional for dependency checks: pip-audit, safety, npm (npx auditjs), govulncheck, Trivy
What are the safety notes?
The skill runs scripts and reads every file in the directory you point it at. Only audit projects you own or have explicit permission to examine. Because the scripts use simple pattern matching, they will miss some issues and report some false positives, so their output should be checked by a person.
Treat the report as a first pass. Critical and high severity findings should be addressed before deployment, and production security sign-off still needs a human security review or a professional audit.
- Only run it on code you have permission to examine
- Verify each finding manually before acting on it
- Do not treat a clean scan as proof that the project is secure
What people use it for
- Run a first-pass security review of your own web app before a release.
- Look for API keys or database passwords accidentally committed to a repository.
- Check a Dockerfile, CI configuration or config file for insecure defaults.
- Teach students what SQL injection, XSS or path traversal look like in real code.
- Produce a consistent, severity-ranked security report template for a team review.
Frequently asked questions
How do I install the skill-security-auditor skill?
Download the skill ZIP from the resource page and unzip it into ~/.claude/skills/ for personal use or a project's .claude/skills/ folder for one project. In the Claude apps you can instead upload it under Settings → Capabilities → Skills.
Is the Security Auditor skill free?
The skill is licensed under Apache-2.0, and the full terms are in its LICENSE.txt file. The source does not mention any price, so check the resource page for any cost information.
What do I need to run the Security Auditor skill?
You need Python 3 to run the bundled scan scripts. Dependency checks are optional and require tools such as pip-audit, safety, npm with npx auditjs, govulncheck or Trivy, which are not included.
Does the skill send my code over the network?
The skill is listed as not using the network. It runs local Python scripts that pattern-match files in the folder you point it at, so you should still only run it on code you have permission to examine.
Can the skill replace a professional security audit?
No. The scripts use simple pattern matching and will miss issues and report false positives, so a human security review or professional audit is still needed for production sign-off.
Why does the scanner report things that are not real problems?
Pattern matching cannot understand context, so it can flag harmless strings as secrets or treat a safe call as dangerous. Check each finding manually before fixing it.
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Our verdict
Use this skill if you want a structured first-pass security review of your own project, a checklist for teaching or team reviews, or a consistent report template. Pick something else, or add a professional audit, if you need production security sign-off, or if you want dependency results without installing the external tools yourself.
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