{
  "protocol_version": "a2a-discovery",
  "name": "MBS Runtime Gate - Track 2 Procurement Agent",
  "description": "A bounded Track 2 procurement reliability agent that stress-tests rare vendor-payment cases, retrieves policy/evidence, and gates high-risk actions before execution.",
  "provider": {
    "name": "Aletheia Protocol",
    "url": "https://aletheiaprotocol.me/"
  },
  "url": "https://mbs.aletheiaprotocol.me",
  "documentation_url": "https://mbs.aletheiaprotocol.me/api/track2-evidence",
  "preferred_transport": "https",
  "capabilities": {
    "streaming": false,
    "push_notifications": false,
    "state_transition_history": true
  },
  "skills": [
    {
      "id": "run_procurement_case",
      "name": "run procurement case",
      "description": "Run a named procurement reliability case through the bounded MBS task gate and return the decision, MBS gate status, blocked actions, and trace evidence.",
      "input_modes": [
        "application/json"
      ],
      "output_modes": [
        "application/json"
      ]
    },
    {
      "id": "check_structured_output",
      "name": "check structured output",
      "description": "Validate a schema plus model output and return PASS, REVIEW, or FAIL with trace metadata.",
      "input_modes": [
        "application/json"
      ],
      "output_modes": [
        "application/json"
      ]
    },
    {
      "id": "retrieve_policy_evidence",
      "name": "retrieve policy evidence",
      "description": "Retrieve procurement policy and vendor evidence context, including bounded Agent Search policy retrieval in the deployed smoke path.",
      "input_modes": [
        "application/json"
      ],
      "output_modes": [
        "application/json"
      ]
    }
  ],
  "security": [
    {
      "scheme": "bearer_sha256_secret",
      "description": "Public challenge metadata is readable. The bounded task endpoint requires a bearer token whose SHA-256 hash is stored as a Worker secret. Full enterprise A2A federation is not claimed here."
    }
  ],
  "endpoints": {
    "evidence": "https://mbs.aletheiaprotocol.me/api/track2-evidence",
    "intents": "https://mbs.aletheiaprotocol.me/api/a2a-intents",
    "task_send": "https://mbs.aletheiaprotocol.me/api/a2a/tasks/send",
    "tester": "https://mbs.aletheiaprotocol.me/tester"
  },
  "boundary": "This exposes discovery metadata, supported intents, and one bounded bearer-authenticated A2A task path. Full enterprise federation, mTLS/OIDC, key rotation, tenant policy admin, and customer agent onboarding are not claimed here."
}