認可の理解

{
  "$schema": "https://adcontextprotocol.org/schemas/v3/adagents.json",
  "contact": {
    "name": "Sports Network Media",
    "email": "adops@sportsnetwork.com",
    "domain": "sportsnetwork.com"
  },
  "properties": [
    {
      "property_id": "sports_network_main",
      "property_type": "website",
      "name": "Sports Network",
      "identifiers": [
        {"type": "domain", "value": "sportsnetwork.com"}
      ],
      "tags": ["premium", "sports"]
    }
  ],
  "authorized_agents": [
    {
      "url": "https://sports-media-sales.com",
      "authorized_for": "All Sports Network properties",
      "authorization_type": "property_tags",
      "property_tags": ["sports"]
    },
    {
      "url": "https://premium-ad-network.com",
      "authorized_for": "Premium inventory only",
      "authorization_type": "property_tags",
      "property_tags": ["premium"]
    }
  ],
  "last_updated": "2025-01-10T12:00:00Z"
}

{
  "properties": [
    {
      "property_type": "website",
      "name": "Sports Network",
      "identifiers": [
        {"type": "domain", "value": "sportsnetwork.com"}
      ],
      "tags": ["sports_network", "premium"],
      "publisher_domain": "sportsnetwork.com"
    },
    {
      "property_type": "radio",
      "name": "WXYZ-FM Chicago",
      "identifiers": [
        {"type": "call_sign", "value": "WXYZ-FM"},
        {"type": "market", "value": "chicago"}
      ],
      "tags": ["local_radio", "midwest"],
      "publisher_domain": "radionetwork.com"
    }
  ],
  "tags": {
    "sports_network": {
      "name": "Sports Network Properties",
      "description": "145 sports properties and networks"
    },
    "local_radio": {
      "name": "Local Radio Stations",
      "description": "1847 local radio stations across US markets"
    }
  },
  "advertising_policies": "We maintain strict brand safety standards. Prohibited categories include: tobacco and vaping products, online gambling and sports betting, cannabis and CBD products, political advertising, and speculative financial products (crypto, NFTs, penny stocks).\n\nWe also prohibit misleading tactics such as clickbait headlines, false scarcity claims, hidden pricing, and ads targeting vulnerable populations.\n\nCompetitor brands in the streaming media space are blocked by policy.\n\nFull advertising guidelines: https://publisher.com/advertising-policies"
}

// Get portfolio information from capabilities
const capabilities = await salesAgent.call('get_adcp_capabilities');
const portfolio = capabilities.media_buy?.portfolio;
const publisherDomains = portfolio?.publisher_domains || [];

// For each publisher domain, fetch and cache adagents.json
const authorizationCache = {};

for (const domain of publisherDomains) {
  try {
    const adagents = await fetch(`https://${domain}/.well-known/adagents.json`);
    authorizationCache[domain] = await adagents.json();
  } catch (error) {
    console.warn(`Could not verify authorization for ${domain}`);
    authorizationCache[domain] = null;
  }
}

// When evaluating a product
const result = await salesAgent.call('get_products', {brief: "Chicago radio ads"});
const product = result.products[0];

// Validate authorization for each publisher in publisher_properties
const authorized = product.publisher_properties.every(pubProp => {
  const domain = pubProp.publisher_domain;
  const adagents = authorizationCache[domain];

  if (!adagents) return false; // No adagents.json found

  // Verify the sales agent is in publisher's authorized_agents
  return adagents.authorized_agents.some(agent =>
    agent.url === salesAgent.url &&
    isAuthorizedForProperties(agent, pubProp)
  );
});

if (!authorized) {
  throw new Error("Sales agent not authorized for claimed properties");
}