Skill Vetter 🔒

Security-first vetting protocol for AI agent skills. Never install a skill without vetting it first.

When to Use

• Before installing any skill from ClawdHub
• Before running skills from GitHub repos
• When evaluating skills shared by other agents
• Anytime you're asked to install unknown code

Vetting Protocol

Step 1: Source Check

Questions to answer:
- [ ] Where did this skill come from?
- [ ] Is the author known/reputable?
- [ ] How many downloads/stars does it have?
- [ ] When was it last updated?
- [ ] Are there reviews from other agents?

Step 2: Code Review (MANDATORY)

Read ALL files in the skill. Check for these RED FLAGS:

🚨 REJECT IMMEDIATELY IF YOU SEE:
─────────────────────────────────────────
• curl/wget to unknown URLs
• Sends data to external servers
• Requests credentials/tokens/API keys
• Reads ~/.ssh, ~/.aws, ~/.config without clear reason
• Accesses MEMORY.md, USER.md, SOUL.md, IDENTITY.md
• Uses base64 decode on anything
• Uses eval() or exec() with external input
• Modifies system files outside workspace
• Installs packages without listing them
• Network calls to IPs instead of domains
• Obfuscated code (compressed, encoded, minified)
• Requests elevated/sudo permissions
• Accesses browser cookies/sessions
• Touches credential files
─────────────────────────────────────────

Step 3: Permission Scope

Evaluate:
- [ ] What files does it need to read?
- [ ] What files does it need to write?
- [ ] What commands does it run?
- [ ] Does it need network access? To where?
- [ ] Is the scope minimal for its stated purpose?

Step 4: Risk Classification

Output Format

After vetting, produce this report:

SKILL VETTING REPORT
═══════════════════════════════════════
Skill: [name]
Source: [ClawdHub / GitHub / other]
Author: [username]
Version: [version]
───────────────────────────────────────
METRICS:
• Downloads/Stars: [count]
• Last Updated: [date]
• Files Reviewed: [count]
───────────────────────────────────────
RED FLAGS: [None / List them]

PERMISSIONS NEEDED:
• Files: [list or "None"]
• Network: [list or "None"]  
• Commands: [list or "None"]
───────────────────────────────────────
RISK LEVEL: [🟢 LOW / 🟡 MEDIUM / 🔴 HIGH / ⛔ EXTREME]

VERDICT: [✅ SAFE TO INSTALL / ⚠️ INSTALL WITH CAUTION / ❌ DO NOT INSTALL]

NOTES: [Any observations]
═══════════════════════════════════════

Quick Vet Commands

For GitHub-hosted skills:

# Check repo stats
curl -s "https://api.github.com/repos/OWNER/REPO" | jq '{stars: .stargazers_count, forks: .forks_count, updated: .updated_at}'

# List skill files
curl -s "https://api.github.com/repos/OWNER/REPO/contents/skills/SKILL_NAME" | jq '.[].name'

# Fetch and review SKILL.md
curl -s "https://raw.githubusercontent.com/OWNER/REPO/main/skills/SKILL_NAME/SKILL.md"

Trust Hierarchy (2-Level System)

🟢 Level 1: OFFICIAL (官方技能)

Sources:
- ~/.openclaw/workspace/skills/
- clawhub/official/
- openclaw/core/

Scanning: Light scan (check for obvious malware)
Action: Allow install unless EXTREME risk

🔴 Level 2: COMMUNITY (其他技能)

Sources:
- clawhub/community/
- GitHub repos
- Unknown sources

Scanning: Full strict scan (all red flags)
Action: Block HIGH or EXTREME risk automatically

Auto-Block Rules (强制拦截规则)

扫描失败 → 阻止安装

Reason: 宁可错杀，不可放过
Action: Return error, do not proceed with installation

社区技能 + 高风险 → 强制阻止

Risk Level: HIGH or EXTREME
Action: Block installation, no user confirmation
Reason: 安全优先，不给绕过机会

官方技能 + 极高风险 → 阻止

Risk Level: EXTREME only
Action: Block installation
Reason: 官方技能也可能被篡改

Integration with clawhub install

Hook Implementation

# Before installing any skill:
1. Detect skill source → determine trust level
2. Call skill_vetter.scan() → get security report
3. Check should_block_install() → decide to proceed or block
4. If blocked → print report and exit with error
5. If allowed → proceed with installation
6. Log scan result for audit trail

Output Format (Enhanced)

════════════════ 技能安全扫描 ════════════════
技能：[skill_name]
来源：[skill_source]
信任等级：[🟢 OFFICIAL / 🔴 COMMUNITY]
────────────────────────────────────────────
风险等级：[🟢 LOW / 🟡 MEDIUM / 🔴 HIGH / ⛔ EXTREME]
红色标志：[None / List of red flags]
────────────────────────────────────────────
建议：[✅ SAFE TO INSTALL / ❌ BLOCKED]
══════════════════════════════════════════

Remember

• No skill is worth compromising security
• When in doubt, don't install
• High-risk skills are auto-blocked, no confirmation
• Scan failures result in blocked installation
• Document what you vet for future reference

Paranoia is a feature. 🔒🦀

Security first, always. 🛡️