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name: skill-audit description: >- Audits Claude skills from GitHub repositories for effectiveness, token usage, safety, and best-practice compliance, then automatically generates bilingual social media posts about the findings. Use when the user wants to audit a skill, review a skill from GitHub, analyze a SKILL.md, evaluate skill quality, or check a skill for safety and permission issues.

Skill Audit Workflow

Audit a Claude skill from a GitHub repository. Evaluate effectiveness, token usage, time complexity, permissions, safety, and best-practice compliance. Produce a structured audit report.

Step 1: Clone & Extract

Run the clone script with the user-provided GitHub URL:

bash scripts/clone_and_extract.sh <repo-url>

The script outputs JSON listing all SKILL.md files found. If multiple skills exist in the repo, present the list to the user and ask which one(s) to audit.

If the script exits with a non-zero code:

• Exit 1: Ask the user to provide a valid GitHub URL
• Exit 2: Check if the repo exists and is public
• Exit 3: The repo has no SKILL.md files — inform the user

Step 2: Create Output Directory

Create the audit output directory:

audits/<skill-name>-<YYYYMMDD-HHMMSS>/

Write metadata.json with:

{
  "repo_url": "<url>",
  "timestamp": "<ISO 8601>",
  "auditor": "Fenz.AI",
  "skill_name": "<name>",
  "skill_path": "<path within repo>"
}

Step 3: Save Source Files

Copy all files from the skill directory (the directory containing SKILL.md and its subdirectories) into source/ within the output directory. Then clean up the temp clone directory.

Step 4: Analyze

Read references/audit-criteria.md for detailed rubrics. Evaluate each category:

4a. Effectiveness

Read the skill's SKILL.md and evaluate:

• Description quality (WHAT + WHEN)
• Trigger clarity and coverage
• Workflow definition clarity
• Examples for complex steps
• Error handling guidance

Rate: Strong / Adequate / Weak

4b. Token Usage

Run the analysis script:

python3 scripts/analyze_tokens.py <source-dir>

Use the JSON output to assess:

• SKILL.md line count
• Progressive disclosure usage
• Total token footprint
• Category breakdown

Rate: Low / Medium / High

4c. Time Spending

Evaluate the workflow for:

• Complexity and branching
• Number of external tool calls
• User interaction requirements
• Scope clarity

Rate: Quick / Moderate / Extended

4d. Permissions

Check the skill for:

• allowed-tools in frontmatter — what tools are requested?
• Whether each tool is justified by the workflow
• Destructive tool usage (Bash without restrictions, Write to system paths)
• Network access scope
• File system access scope

Flag any red flags. Rate: Minimal / Moderate / Broad

4e. Safety

Evaluate:

• Does behavior match the description?
• Network access patterns
• File scope boundaries
• Sensitive data handling
• Input validation (especially for shell commands)

Rate: Low Risk / Medium Risk / High Risk

4f. Recommendations

Read references/skill-best-practices.md and check the skill against each item. Group findings by priority:

• High: Safety, correctness, major effectiveness issues
• Medium: Efficiency, maintainability issues
• Low: Style and convention suggestions

Step 5: Generate Report

Read assets/audit-report-template.md and fill in all template fields with the analysis results. Save as audit-report.md in the output directory.

Include:

• All six category ratings with detailed explanations
• Specific evidence from the skill files for each finding
• Concrete, actionable recommendations
• Positive observations (what the skill does well)
• File appendix with token estimates

Step 6: Log Everything

Maintain process-log.md in the output directory. Append each step as it completes:

## [YYYY-MM-DD HH:MM:SS] Step N: <step name>
- Status: success/failed/skipped
- Details: <what happened>
- Errors: <if any>

Step 7: Generate Social Media Posts

Automatically generate posts from the audit report.

1. Run: python3 ../post-generator/scripts/extract_findings.py <audit-dir>/audit-report.md
2. Read ../post-generator/references/writing-guide-en.md and ../post-generator/assets/post-template-twitter-en.md
3. Generate 2-3 English post variations following the guide
4. Read ../post-generator/references/writing-guide-zh.md and ../post-generator/assets/post-template-twitter-zh.md
5. Generate 2-3 Chinese post variations (NOT translations — independently crafted)
6. Save posts-en.md and posts-zh.md in the audit output directory
7. Log post generation step to process-log.md

Quality rules:

• Posts must sound human-written, not AI-generated
• No banned phrases (see writing guides for anti-pattern lists)
• Fenz.AI mentioned once, naturally, first post only
• Max 2 hashtags, no emoji spam
• English: professional/conversational; Chinese: direct/opinionated with full-width punctuation