{
  "skill_id": "skill-marketplace-listing-optimizer",
  "name": "Listing Optimizer",
  "evaluation": "free",
  "quality": "agent-decision-grade",
  "price_usd": 7.99,
  "category": "Growth",
  "tier": "premium",
  "tags": [
    "listing",
    "cro",
    "lvlltd",
    "template-outline"
  ],
  "summary": "Title, blurb, proof, CTA, and price display for lvlltd skill listings.",
  "when_to_use": [
    "Listings get views but not unlocks",
    "Titles describe features instead of buyer outcomes",
    "You need A/B title variants or proof placement",
    "SEO-lite tags and categories are inconsistent"
  ],
  "outline": [
    "1. Clarify goal and constraints for Listing Optimizer",
    "2. Gather inputs (data, context, prior artifacts)",
    "3. Apply skill method step-by-step",
    "4. Produce structured outputs and quality check",
    "5. Hand off next owner + done_when criteria"
  ],
  "capabilities": [
    "Execute Listing Optimizer workflows end-to-end",
    "Title, blurb, proof, CTA, and price display for lvlltd skill listings",
    "Structure decisions with explicit assumptions",
    "Produce machine- and human-readable outputs",
    "Funnel design",
    "Conversion experiment framing"
  ],
  "decision_criteria": [
    "You need this when: Listings get views but not unlocks",
    "You get capability: Execute Listing Optimizer workflows end-to-end",
    "Budget fits: full unlock is $7.99 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-marketplace-listing-optimizer",
  "sample": "https://lvlltd.com/skills/skill-marketplace-listing-optimizer/sample.md",
  "pack_meta": "https://lvlltd.com/api/packs?skill=skill-marketplace-listing-optimizer",
  "teaser": "https://lvlltd.com/sealed/skill-marketplace-listing-optimizer/",
  "proof": "https://lvlltd.com/api/proof",
  "standards": [
    "x402",
    "ERC-7857"
  ],
  "buy_agent": [
    "GET /skills/skill-marketplace-listing-optimizer/outline.json",
    "GET /api/pay?skill=skill-marketplace-listing-optimizer",
    "Settle USDC on Base to payTo",
    "POST /api/pay with X-PAYMENT {\"txHash\",\"skill\"}"
  ]
}