{
  "gate": "Yakumo Verification Gate",
  "version": "0.1.0",
  "what_this_verifies": [
    "The server actually exists and speaks MCP",
    "The server publishes an A2A agent card",
    "The server declares who pays it",
    "Identical input returns identical output",
    "This gate's own verdict can be recomputed by anyone"
  ],
  "what_this_does_not_verify": [
    "Whether prices or figures returned by the server are correct",
    "Whether the declared compensation structure is truthful (it is published and recorded; false declarations are grounds for revocation)",
    "Quality, competence, or fitness of the underlying business"
  ],
  "conditions": {
    "mcp_endpoint": "POST /mcp responds to initialize and tools/list with at least one tool",
    "agent_card": "GET /.well-known/agent-card.json returns JSON with name and description",
    "compensation_disclosure": {
      "location": "agent-card, top-level key 'compensation'",
      "shape": {
        "paid_by": [
          "buyer",
          "seller",
          "referral",
          "advertising",
          "subscription",
          "public",
          "other"
        ],
        "referral_fee": "boolean, required",
        "listing_fee": "boolean, required",
        "success_fee_pct": "number, optional",
        "disclosure_url": "string, optional"
      },
      "note": "Content is not judged. Only the absence of disclosure disqualifies."
    },
    "determinism": "Calling the same tool with the same arguments returns identical content across runs. NOT measured by default: doing so requires executing a tool on the checked server, which this gate will not do without the owner's consent. Send allow_tool_call true to measure it.",
    "self_verification": "Every verdict carries a SHA-256 that any third party can recompute"
  },
  "tiers": {
    "verified": "Free. Conformance and disclosure verified. No price validation.",
    "verified_plus_data": "Paid. Figures traced to a third-party obtainable primary source.",
    "yakumo_partner": "Paid. Dedicated MCP server, operations, audit log."
  },
  "operator": "The HORIZ音s Co., Ltd. / HORIZON SHIELD",
  "self_applied": "This gate is itself subject to these conditions."
}