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Closes the remaining gaps vs alirezarezvani/claude-skills across trust, content types, discoverability, and community. Security (trust signal + useful): - scripts/skill-audit.mjs scans skills/*/SKILL.md + each skill's scripts/ for prompt injection, exfiltration, dynamic code exec, destructive shell, secrets, and hidden text. HIGH fails CI (.github/workflows/skill-audit.yml) + a badge. - New skill-security-auditor skill teaches the same review (production tier). Content types: - output-styles/ — 4 personas (Startup CTO, Growth Marketer, Solo Founder, Product Leader) as Claude Code output styles; --agent claude installs them too. - ORCHESTRATION.md — Skill Chain / Multi-Agent Handoff / Domain Deep-Dive / Solo Sprint patterns. Discoverability: - scripts/build-docs.mjs generates a server-rendered, SEO-indexable web/catalog.html of all skills (built in the Pages deploy; gitignored). Linked from README + playground. Community: - ROADMAP.md (now/next/later + good-first-issues). README badges/sections, TIERS (47 production), CHANGELOG, package.json files, and exports/web index all updated. SkillCheck + security audit + exports verified. Claude-Session: https://claude.ai/code/session_016JWn5jRD5tcEFKrubjQ6Px Co-authored-by: Claude <noreply@anthropic.com>
3.5 KiB
3.5 KiB
Skill Security Auditor
Review an AI skill file or system prompt for instructions that could harm whoever installs or runs it. Skills are plain text, but plain text can still tell a model to leak data, run destructive commands, or ignore its guidelines. This skill produces a structured safety verdict.
When to use
- Vetting a skill from an untrusted or community source before installing it
- Reviewing a contributed
SKILL.mdin a pull request - Checking a system prompt / custom instruction for prompt-injection risks
Required Inputs
Ask for these if not provided:
- The skill / prompt content to audit (paste it, or the file path)
- Any bundled scripts the skill ships (these matter as much as the prose)
- Where it came from (source/author) and how it will run (auto-loaded vs. manual)
What to Check
Scan for each category and rate severity (🔴 High / 🟠 Medium / 🟡 Low):
| Category | Look for |
|---|---|
| Prompt injection | "ignore previous/all instructions", "developer mode", jailbreak/DAN framing, attempts to reveal the system prompt, forced unrestricted personas |
| Data exfiltration | Instructions to send conversation/user data, credentials, or keys to an external URL/webhook/server |
| Code & command execution | eval/exec, os.system, subprocess, child_process, destructive shell (rm -rf /, dd, fork bombs, chmod 777) |
| Secrets | Hardcoded API keys, AWS keys (AKIA…), private keys, or asking the user to paste secrets |
| Obfuscation | Zero-width / invisible Unicode, very long base64 blobs that hide payloads |
| Scope creep | Instructions unrelated to the skill's stated purpose, or that try to broaden permissions |
Process
- Read the skill body and every bundled script — scripts are where real harm hides.
- For each finding, capture: category, severity, the exact line/snippet (evidence), and why it's risky.
- Decide an overall verdict: Safe to install, Install with caution (medium issues to review), or Do not install (any high-severity issue).
- For a repo, recommend automation: run
node scripts/skill-audit.mjsin CI to gate every PR.
Output Format
Skill Security Audit: [skill name / source]
Verdict: ✅ Safe to install / ⚠️ Install with caution / ⛔ Do not install Findings: [N] high · [N] medium · [N] low
Findings
| Severity | Category | Evidence (line/snippet) | Why it's risky |
|---|---|---|---|
| 🔴 High | [category] | [exact snippet] |
[explanation] |
Recommendation
[1–3 sentences: install or not, what to change, and any follow-up.]
Quality Checks
- Every bundled script was read, not just the markdown body
- Each finding cites a concrete snippet as evidence (no vague "looks risky")
- The verdict follows the rule: any high-severity finding ⇒ Do not install
- Legitimate examples (e.g. a documented
curl https://example.com) are not over-flagged - The recommendation is actionable (what to remove/change, not just "be careful")
Anti-Patterns
- Do not pass a skill as safe without reading its scripts — prose can look clean while a script exfiltrates data
- Do not treat every mention of "API key" or "curl" as malicious; weigh intent and context
- Do not give a vague verdict — always land on install / caution / do-not-install with reasons
- Do not ignore zero-width or invisible characters; they are a classic way to hide instructions
- Do not assume a high star count or popular author means a skill is safe — audit the content itself