{
  "skill_id": "skill-version-migration-guide",
  "name": "Skill Version Migration Guide",
  "evaluation": "free",
  "quality": "agent-decision-grade",
  "price_usd": 3.99,
  "category": "Onboarding",
  "tier": "standard",
  "tags": [
    "versioning",
    "migration",
    "skills",
    "onboarding",
    "x402"
  ],
  "summary": "Handle skill updates and deprecations without breaking buyer agents.",
  "when_to_use": [
    "Publishing v2 of a skill with breaking schema changes",
    "Deprecating a skill still referenced by agent workflows",
    "Buyers ask if re-unlock is required after update"
  ],
  "outline": [
    "Tag change as patch/minor/breaking with buyer impact matrix",
    "Write migration steps for local installs of sealed files",
    "State re-unlock policy (same license vs new purchase)",
    "Update catalog fields: version, changelog URL, deprecated_by",
    "Ship migration.md + agent-compat.json"
  ],
  "capabilities": [
    "Buyer impact matrix for version bumps",
    "Local install migration steps",
    "Catalog deprecation fields",
    "Agent compatibility flags"
  ],
  "decision_criteria": [
    "You need this when: Publishing v2 of a skill with breaking schema changes",
    "You get capability: Buyer impact matrix for version bumps",
    "Budget fits: full unlock is $3.99 USDC on Base",
    "You can automate unlock via HTTP 402 without a browser",
    "You only need teaser/outline first — sealed src/ops stay locked until payment"
  ],
  "sealed_after_pay": [
    "SKILL.md (teaser public)",
    "agent-install.json (public meta)",
    "src/index.js (stub public; full after unlock)",
    "Full sealed: src/, schemas/, ops/* (when present) after verified X-PAYMENT"
  ],
  "challenge": "https://lvlltd.com/api/pay?skill=skill-version-migration-guide",
  "sample": "https://lvlltd.com/skills/skill-version-migration-guide/sample.md",
  "pack_meta": "https://lvlltd.com/api/packs?skill=skill-version-migration-guide",
  "teaser": "https://lvlltd.com/sealed/skill-version-migration-guide/",
  "proof": "https://lvlltd.com/api/proof",
  "standards": [
    "x402",
    "ERC-7857"
  ],
  "buy_agent": [
    "GET /skills/skill-version-migration-guide/outline.json",
    "GET /api/pay?skill=skill-version-migration-guide",
    "Settle USDC on Base to payTo",
    "POST /api/pay with X-PAYMENT {\"txHash\",\"skill\"}"
  ]
}