{
  "operationId": "discover_federated",
  "requestBody": {
    "content": {
      "application/json": {
        "schema": {
          "$ref": "#/components/schemas/MarsQuery"
        }
      }
    },
    "required": true
  },
  "responses": {
    "200": {
      "content": {
        "application/json": {
          "schema": {
            "$ref": "#/components/schemas/FederatedDiscoveryResult"
          }
        }
      },
      "description": "Deterministically merged local and signed peer results with bounded partial metadata"
    },
    "400": {
      "content": {
        "application/json": {
          "schema": {
            "$ref": "#/components/schemas/ErrorResponse"
          }
        }
      },
      "description": "Invalid query or federated cursor"
    },
    "401": {
      "content": {
        "application/json": {
          "schema": {
            "$ref": "#/components/schemas/ErrorResponse"
          }
        }
      },
      "description": "Session missing or invalid"
    },
    "403": {
      "content": {
        "application/json": {
          "schema": {
            "$ref": "#/components/schemas/ErrorResponse"
          }
        }
      },
      "description": "Federated discovery capability required"
    },
    "413": {
      "content": {
        "application/json": {
          "schema": {
            "$ref": "#/components/schemas/ErrorResponse"
          }
        }
      },
      "description": "Query body exceeds the explicit admission limit"
    },
    "429": {
      "content": {
        "application/json": {
          "schema": {
            "$ref": "#/components/schemas/ErrorResponse"
          }
        }
      },
      "description": "Query rate limit exceeded"
    }
  },
  "security": [
    {
      "siwsSession": []
    },
    {
      "siwsCookie": []
    }
  ],
  "tags": [
    "discovery"
  ]
}