{
  "version": "0.2.0",
  "wit_version": "0.3.0",
  "type": "channel",
  "name": "whatsapp",
  "description": "WhatsApp Cloud API channel for receiving and responding to WhatsApp messages",
  "setup": {
    "required_secrets": [
      {
        "name": "whatsapp_access_token",
        "prompt": "Enter your WhatsApp Cloud API permanent access token (from the Meta Developer Portal under your app's WhatsApp > API Setup).",
        "validation": "^[A-Za-z0-9_-]+$"
      },
      {
        "name": "whatsapp_verify_token",
        "prompt": "Webhook verify token (leave empty to auto-generate)",
        "optional": true,
        "auto_generate": { "length": 32 }
      }
    ],
    "validation_endpoint": "https://graph.facebook.com/v18.0/me?access_token={whatsapp_access_token}",
    "setup_url": "https://developers.facebook.com/apps"
  },
  "capabilities": {
    "http": {
      "allowlist": [
        { "host": "graph.facebook.com", "path_prefix": "/" }
      ],
      "rate_limit": {
        "requests_per_minute": 80,
        "requests_per_hour": 1000
      }
    },
    "secrets": {
      "allowed_names": ["whatsapp_*"]
    },
    "channel": {
      "allowed_paths": ["/webhook/whatsapp"],
      "allow_polling": false,
      "workspace_prefix": "channels/whatsapp/",
      "emit_rate_limit": {
        "messages_per_minute": 100,
        "messages_per_hour": 5000
      },
      "webhook": {
        "secret_header": "X-Hub-Signature-256",
        "secret_name": "whatsapp_verify_token",
        "verify_token_param": "hub.verify_token"
      }
    }
  },
  "config": {
    "api_version": "v18.0",
    "reply_to_message": true,
    "owner_id": null,
    "dm_policy": "pairing",
    "allow_from": []
  }
}