Security audit
General-purpose security auditing guide. Covers OWASP Top 10, dependency vulnerabilities, authentication, authorization, input validation, and secret management. Use this when performing a security review or audit.From its SKILL.md
npx -y skills add s-hiraoku/synapse-a2a --skill security-auditAssembled from the repository path, not quoted from the project. Check it against their README if it does not work.
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SKILL.md
2.3 KB, 425 tokens by cl100k_base, as published. Nobody here has run it
Security Audit Skill
This skill provides a comprehensive framework for security auditing, ensuring that common vulnerabilities are identified and addressed during development and review.
Audit Checklist
1. OWASP Top 10 & Common Vulnerabilities
- Injection: Check for SQL, Command, or NoSQL injection points. Ensure parameterized queries or proper escaping is used.
- Broken Access Control: Verify that users cannot access resources outside of their intended permissions.
- Insecure Design: Evaluate the overall architecture for security flaws.
- Cryptographic Failures: Ensure sensitive data (passwords, PII) is encrypted at rest and in transit using modern algorithms (e.g., AES-256, TLS 1.3).
2. Dependency Management
- Vulnerability Scanning: Check for known vulnerabilities in third-party libraries (e.g., using
npm audit,pip-audit, orsnyk). - Outdated Packages: Identify and update significantly outdated dependencies.
3. Authentication & Authorization
- Credential Management: Ensure passwords are never stored in plain text (use Argon2, bcrypt, or scrypt).
- Session Management: Verify secure session handling (HttpOnly, Secure, SameSite flags for cookies).
- MFA/2FA: Check for the implementation or requirement of multi-factor authentication where appropriate.
4. Input Validation & Data Handling
- Sanitization: Validate and sanitize all user-supplied data at the trust boundary.
- Encoding: Ensure output encoding is used to prevent Cross-Site Scripting (XSS).
- Secret Management: Confirm that API keys, secrets, and credentials are NOT committed to the repository (use environment variables or secret managers).
Usage Guidelines
When asked to "audit" or "perform a security review":
- Systematically go through each category above.
- For each finding, categorize it by severity (Critical, High, Medium, Low).
- Provide clear remediation steps for every identified issue.
- Document any positive security practices already in place.
What ships with it
Read from the repository
Just SKILL.md. No reference files, no scripts.
Gives 0 of the 12 instructions most audit compliance skills give in 425 tokens
Counted across 960 of the 1,589 authors here whose files we hold, read 2026-09-06
- Read product marketing context before asking questionsin 29 of 960, across 11 files
- Rank findings by severityin 29 of 960, across 22 files
- Generate audit reportin 22 of 960
- Run the audit scriptin 20 of 960, across 19 files
- Generate a prioritized action plan reportin 19 of 960, across 11 files
- Ensure one H1 per pagein 15 of 960, across 5 files
- Ensure sitemap exists and is accessiblein 14 of 960, across 4 files
- Verify alt text on all imagesin 12 of 960, across 3 files
- Determine the audit scope before startingin 12 of 960, across 4 files
- Verify important pages allowed in robots.txtin 11 of 960, across 2 files
- Detect business type from homepage signalsin 11 of 960, across 7 files
- Delegate specialized tasks to subagentsin 11 of 960, across 7 files
Said here and by no other author read
- Check for SQL, Command, or NoSQL injection points
- Verify users cannot access unauthorized resources
- Ensure sensitive data is encrypted at rest and in transit
- Check for known vulnerabilities in third-party libraries
- Ensure passwords are never stored in plain text
- Verify secure session handling flags for cookies
Grouped from the skills themselves: near-identical wordings counted once, and counted by distinct author, so one author publishing three of these counts once. Length counted with cl100k_base; the agent that loads this file may tokenize it differently.