{
  "skill_id": "gf-pc-usage-based-pricing-notes",
  "name": "Usage-Based Pricing Notes",
  "evaluation": "free",
  "quality": "agent-decision-grade",
  "functional": true,
  "price_usd": 4.49,
  "category": "Commerce",
  "tier": "standard",
  "kind": "good",
  "tags": [
    "x402",
    "quality-factory",
    "good",
    "decision-grade",
    "functional",
    "sealed-runtime",
    "gf-complete"
  ],
  "summary": "Meter definitions, billable-event catalogs, and buyer-facing usage price notes for agent skills billed by call, token, or seat-day.",
  "when_to_use": [
    "You price agent skills by API call, token band, or active seat-day and need a public meter definition",
    "Buyers dispute overage lines because billable events were never listed at purchase",
    "Statements must map usage rows to USDC settle amounts agents can collect via x402"
  ],
  "outline": [
    "Catalog billable events with unit name, aggregation window, and what is explicitly non-billable so meters stay testable",
    "Define free-tier, included-bucket, and overage line formulas with worked numeric examples for ops and buyer FAQs",
    "Design statement row schemas that join usage_id, period, quantity, unit price, and extended USDC amount",
    "Write buyer-facing pricing cards that state meters and overage triggers without promising cost savings or ROI",
    "Specify agent collection hooks that turn a closed period statement into a settle packet with period_id and total"
  ],
  "capabilities": [
    "Billable-event catalog template",
    "Free-tier and overage formula notes",
    "Usage statement row schema",
    "Buyer pricing card microcopy",
    "Period-to-settle packet hooks"
  ],
  "artifact_outputs": [
    "billable-event-catalog.json",
    "usage-overage-formulas.md",
    "usage-statement-schema.json",
    "usage-pricing-card-copy.md"
  ],
  "decision_criteria": [
    "Outline steps are specific to this skill (not generic templates)",
    "Sealed pack exposes createSkill().run with outline-driven steps",
    "Artifacts are named concrete deliverables",
    "No revenue guarantees or banned claims",
    "Free eval path works without payment"
  ],
  "sealed_after_pay": [
    "Full src/index.js runtime (createSkill, run, plan)",
    "src/runbook.js with skill-specific steps",
    "src/tools.js registry for agent ToolRegistry",
    "WORKBOOK.md operator procedure",
    "templates/ checklist and artifact shells",
    "schemas/output.schema.json"
  ],
  "runtime": {
    "entry": "src/index.js",
    "export": "createSkill",
    "install": "node scripts/install-unlocked-pack.mjs unlock.json ./skills"
  },
  "challenge": "https://lvlltd.com/api/pay?skill=gf-pc-usage-based-pricing-notes",
  "sample": "https://lvlltd.com/skills/gf-pc-usage-based-pricing-notes/sample.md",
  "pack_meta": "https://lvlltd.com/api/packs?skill=gf-pc-usage-based-pricing-notes",
  "teaser": "https://lvlltd.com/sealed/gf-pc-usage-based-pricing-notes/",
  "proof": "https://lvlltd.com/api/proof",
  "standards": [
    "x402",
    "ERC-7857"
  ],
  "operator_notes": [
    "Confirm pay path with GET /api/pay before purchasing.",
    "Dry-run createSkill().run({ goal, dry_run: true }) after unlock.",
    "Persist payment.txHash with skill_id for re-redeem.",
    "Never commit private keys or OPS_SECRET into pack usage.",
    "Category focus: Commerce. Kind: good.",
    "Claim scrub: no guaranteed ROI, no fake testimonials.",
    "If outline 404s on production, redeploy public/skills after completion pass."
  ]
}