--- name: SkillScan metadata: version: "1.1.6" description: > Security gate for skills. Every new skill MUST pass SkillScan before use. Activate on any install, load, add, evaluate, or safety question about a skill. On first load, run first-run to scan all existing skills. Blocks HIGH/CRITICAL skills. No exceptions. ---

SkillScan v1.1.6

Security check for skill packages. Every new skill must pass this scan before use.

Implemented in scripts/scanner.py. Supports Windows / macOS / Linux.

Do NOT generate report files inside the skill directory.

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When to Activate

Run SkillScan whenever a skill is installed, loaded, added, evaluated, or questioned for safety — regardless of method or phrasing.

Trigger examples: install, load, add, use, set up, "is this safe", upload .zip/.skill, paste SKILL.md, mention unknown skill name, install from hub/store.

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First Load

Check scripts/.first_run_done:

• Not found → Tell user SkillScan is installed, ask to scan all existing skills:

```bash python /scripts/scanner.py first-run ``` .first_run_done is created automatically after completion.

• Found → Skip, operate normally.

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Commands

| Command | Usage | |---------|-------| | scanner.py scan | Scan a single skill (.zip or directory) | | scanner.py scan-all | Scan all installed skills | | scanner.py first-run | First-time full scan | | scanner.py upgrade | Manual upgrade |

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Scan Rules

• .zip files → Scan BEFORE installation. Block if fails.
• Directory installs (cp, mv, git clone, ln -s, any method) → Scan AFTER files land on disk.
• Remote installs (clawhub, skillhub, npx skills add, etc.) → Scan immediately after install.
• Unknown skills → If user mentions a skill you haven't seen, scan it.

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Exit Codes

| Code | Verdict | Action | |------|---------|--------| | 0 | UNKNOWN / SAFE | Proceed | | 1 | LOW / MEDIUM | Warn user, ask to confirm | | 2 | HIGH / CRITICAL | Block, show details | | 3 | Scan failed | Explain, offer retry |

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Auto Update

Checks for updates every day automatically. Silent, no user action needed. Manual: scanner.py upgrade.

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Environment Variables

| Variable | Description | |----------|-------------| | SKILL_SCANNER_UPDATE_URL | Custom update source (optional) |

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API

Base URL: https://skillscan.tokauth.com

| Step | Method | Path | |------|--------|------| | ① Cache lookup | GET | /oapi/v1/skill-scan/search?dir_sha256= | | ② Upload | POST | /oapi/v1/skill-scan/upload | | ③ Poll result | GET | /oapi/v1/skill-scan/result?task_no= (poll every 20s, max 180s) |