Skill Intake Sandbox Gate

Use this workflow to safely intake any third-party skill/tool package before it touches production automation.

Workflow (default)

0) Collect source

• Prefer source tree (git repo / skill folder) over “install and run”.
• Put the candidate under a temp path (do not run it yet).

1) Run the gate (static scan)

From the skill folder:

python3 scripts/gate.py --path <skill-folder> --out /tmp/skill-gate-report.json --md /tmp/skill-gate-report.md

Interpretation:

• risk_level=low: likely safe to rewrite/import
• risk_level=medium: quarantine + manual audit + limited-scope rewrite
• risk_level=high/critical: reject or rewrite from scratch (no execution)

2) Decide

Use the report to choose one:

• ACCEPT: Only if low risk + clear value + minimal capabilities.
• QUARANTINE: Keep for reference, do not execute in automation.
• REWRITE (preferred): Rebuild the skill internally with minimal permissions and deterministic scripts.

3) Rewrite pattern (recommended)

• Create a new internal skill folder under misskim-skills/skills/<name>/.
• Copy only:
  • essential procedural instructions
  • deterministic scripts (no hidden downloads)
  • explicit allowlisted network endpoints (if any)
• Remove:
  • auto-updaters, telemetry, “curl | bash”, arbitrary shell execution
  • credential handling or implicit secret reads

4) Log the intake

Append the decision + rationale to the intake log files:

• misskim-skills/INTAKE_LOG.md
• misskim-skills/intake-log.md
• misskim-skills/intake-log/<date>-*-trend-raw.json (if applicable)

What the gate checks (summary)

• Process execution: subprocess/child_process/os.system/exec/spawn, shell pipelines
• Network: requests/httpx/aiohttp/fetch/axios/socket, hardcoded domains
• File write/destructive ops: rm -rf, recursive deletes, chmod/chown, persistence
• Privilege: sudo, system service edits, launchd/systemd, firewall rules
• Secrets indicators: env/key file reads, token patterns, .npmrc, .env

Resources

• scripts/gate.py: static scanner + JSON/MD report generator
• references/policy.md: allow/deny rules + decision rubric
• references/threat-model.md: threat model for skill intake