{
  "schema_version": "lvl-knowledge-lesson-v1",
  "id": "path-ma-04-human-in-the-loop",
  "category": "path",
  "path_ids": [
    "deploy-multi-agent-workflow"
  ],
  "title": "Human-in-the-loop before irreversible actions",
  "summary": "Spend, outbound messages, and deploys need structured approval — not vibes.",
  "body": "## Irreversible actions\n\n- Spending USDC  \n- Sending email/DM as a human  \n- Writing production state  \n\n## Approval design\n\n- Payload hash of what will happen  \n- TTL so approvals expire  \n- Deny is first-class  \n- Timeout must **not** auto-approve  \n\n## Takeaway\n\nAutonomy without gates is a liability. HITL is how agent products stay shippable.",
  "concepts": [
    "hitl",
    "approval-gate",
    "least-agency"
  ],
  "related_skills_optional": [
    {
      "skill_id": "human-in-loop-approval-gate",
      "name": "Human-in-the-Loop Approval Gate",
      "price_usd": 5.99,
      "price_label": "$5.99 / unlock",
      "summary": "Block irreversible agent actions until a human signs a structured approve payload.",
      "outline": "https://lvlltd.com/skills/human-in-loop-approval-gate/outline.json",
      "challenge": "https://lvlltd.com/api/pay?skill=human-in-loop-approval-gate",
      "listing": "https://lvlltd.com/listings/human-in-loop-approval-gate/",
      "available": true,
      "optional": true,
      "label": "optional_implementation"
    }
  ],
  "sort_order": 40,
  "estimated_minutes": 8,
  "last_updated": "2026-07-22T12:00:00.000Z",
  "freshness": {
    "last_updated_at": "2026-07-22T12:00:00.000Z",
    "days_since_update": 0,
    "band": "fresh",
    "score_0_100": 95,
    "label": "Fresh",
    "display": "Fresh · updated 2026-07-22 (0d ago)"
  },
  "integrity": {
    "knowledge_free": true,
    "skills_optional": true,
    "note": "This lesson is complete without purchasing any skill."
  },
  "related_bundles_optional": [],
  "url": "https://lvlltd.com/learn/lessons/path-ma-04-human-in-the-loop/",
  "updated_at": "2026-07-22T21:10:40.587Z"
}