{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "definitions": {
    "ThreadRealtimeBemItemPresentation": {
      "description": "EXPERIMENTAL - how an existing agent item appears in a realtime conversation.",
      "oneOf": [
        {
          "properties": {
            "type": {
              "enum": [
                "wholeItem"
              ],
              "title": "WholeItemThreadRealtimeBemItemPresentationType",
              "type": "string"
            }
          },
          "required": [
            "type"
          ],
          "title": "WholeItemThreadRealtimeBemItemPresentation",
          "type": "object"
        },
        {
          "properties": {
            "type": {
              "enum": [
                "inlineMarkdown"
              ],
              "title": "InlineMarkdownThreadRealtimeBemItemPresentationType",
              "type": "string"
            }
          },
          "required": [
            "type"
          ],
          "title": "InlineMarkdownThreadRealtimeBemItemPresentation",
          "type": "object"
        },
        {
          "properties": {
            "index": {
              "format": "uint32",
              "minimum": 0.0,
              "type": "integer"
            },
            "type": {
              "enum": [
                "inlineVisualization"
              ],
              "title": "InlineVisualizationThreadRealtimeBemItemPresentationType",
              "type": "string"
            }
          },
          "required": [
            "index",
            "type"
          ],
          "title": "InlineVisualizationThreadRealtimeBemItemPresentation",
          "type": "object"
        }
      ]
    },
    "ThreadRealtimeFrameChannels": {
      "description": "A frame holds one or more payloads, at most one per channel. They share one ID, observation time, and seal. V1 requires its only channel, `voice_transcript`.",
      "properties": {
        "voice_transcript": {
          "$ref": "#/definitions/ThreadRealtimeVoiceTranscript"
        }
      },
      "required": [
        "voice_transcript"
      ],
      "type": "object"
    },
    "ThreadRealtimeHandoffMode": {
      "enum": [
        "start",
        "steer"
      ],
      "type": "string"
    },
    "ThreadRealtimeItem": {
      "description": "EXPERIMENTAL - a thread-scoped realtime item in the canonical timeline.",
      "oneOf": [
        {
          "properties": {
            "type": {
              "enum": [
                "realtimeSessionStarted"
              ],
              "title": "RealtimeSessionStartedThreadRealtimeItemType",
              "type": "string"
            }
          },
          "required": [
            "type"
          ],
          "title": "RealtimeSessionStartedThreadRealtimeItem",
          "type": "object"
        },
        {
          "properties": {
            "channels": {
              "$ref": "#/definitions/ThreadRealtimeFrameChannels"
            },
            "type": {
              "enum": [
                "frame"
              ],
              "title": "FrameThreadRealtimeItemType",
              "type": "string"
            }
          },
          "required": [
            "channels",
            "type"
          ],
          "title": "FrameThreadRealtimeItem",
          "type": "object"
        },
        {
          "properties": {
            "role": {
              "$ref": "#/definitions/ThreadRealtimeTranscriptRole"
            },
            "text": {
              "type": "string"
            },
            "type": {
              "enum": [
                "transcriptSegment"
              ],
              "title": "TranscriptSegmentThreadRealtimeItemType",
              "type": "string"
            }
          },
          "required": [
            "role",
            "text",
            "type"
          ],
          "title": "TranscriptSegmentThreadRealtimeItem",
          "type": "object"
        },
        {
          "properties": {
            "item_id": {
              "type": "string"
            },
            "presentation": {
              "$ref": "#/definitions/ThreadRealtimeBemItemPresentation"
            },
            "turn_id": {
              "type": "string"
            },
            "type": {
              "enum": [
                "bemItemPromoted"
              ],
              "title": "BemItemPromotedThreadRealtimeItemType",
              "type": "string"
            }
          },
          "required": [
            "item_id",
            "presentation",
            "turn_id",
            "type"
          ],
          "title": "BemItemPromotedThreadRealtimeItem",
          "type": "object"
        },
        {
          "properties": {
            "outcome": {
              "$ref": "#/definitions/ThreadRealtimeSessionOutcome"
            },
            "type": {
              "enum": [
                "realtimeSessionClosed"
              ],
              "title": "RealtimeSessionClosedThreadRealtimeItemType",
              "type": "string"
            }
          },
          "required": [
            "outcome",
            "type"
          ],
          "title": "RealtimeSessionClosedThreadRealtimeItem",
          "type": "object"
        },
        {
          "properties": {
            "handoff_id": {
              "type": "string"
            },
            "input": {
              "type": "string"
            },
            "input_item_id": {
              "type": "string"
            },
            "mode": {
              "$ref": "#/definitions/ThreadRealtimeHandoffMode"
            },
            "source_event_ids": {
              "items": {
                "type": "string"
              },
              "type": "array"
            },
            "turn_id": {
              "type": "string"
            },
            "type": {
              "enum": [
                "turnInputAccepted"
              ],
              "title": "TurnInputAcceptedThreadRealtimeItemType",
              "type": "string"
            }
          },
          "required": [
            "handoff_id",
            "input",
            "input_item_id",
            "mode",
            "source_event_ids",
            "turn_id",
            "type"
          ],
          "title": "TurnInputAcceptedThreadRealtimeItem",
          "type": "object"
        },
        {
          "properties": {
            "input": {
              "type": "string"
            },
            "input_item_id": {
              "type": "string"
            },
            "source_event_ids": {
              "items": {
                "type": "string"
              },
              "type": "array"
            },
            "type": {
              "enum": [
                "sessionEndInputSaved"
              ],
              "title": "SessionEndInputSavedThreadRealtimeItemType",
              "type": "string"
            }
          },
          "required": [
            "input",
            "input_item_id",
            "source_event_ids",
            "type"
          ],
          "title": "SessionEndInputSavedThreadRealtimeItem",
          "type": "object"
        }
      ],
      "properties": {
        "id": {
          "type": "string"
        },
        "observedAtMs": {
          "description": "Canonical observation time in Unix milliseconds for eligible voice calls.",
          "format": "int64",
          "type": [
            "integer",
            "null"
          ]
        },
        "realtimeSessionId": {
          "type": "string"
        }
      },
      "required": [
        "id",
        "realtimeSessionId"
      ],
      "type": "object"
    },
    "ThreadRealtimeSessionOutcome": {
      "enum": [
        "ended",
        "failed"
      ],
      "type": "string"
    },
    "ThreadRealtimeTranscriptRole": {
      "enum": [
        "user",
        "assistant"
      ],
      "type": "string"
    },
    "ThreadRealtimeVoiceTranscript": {
      "properties": {
        "role": {
          "$ref": "#/definitions/ThreadRealtimeTranscriptRole"
        },
        "text": {
          "type": "string"
        }
      },
      "required": [
        "role",
        "text"
      ],
      "type": "object"
    }
  },
  "description": "EXPERIMENTAL - a realtime timeline item published after canonical commit.",
  "properties": {
    "item": {
      "$ref": "#/definitions/ThreadRealtimeItem"
    },
    "threadId": {
      "type": "string"
    }
  },
  "required": [
    "item",
    "threadId"
  ],
  "title": "ThreadRealtimeItemCompletedNotification",
  "type": "object"
}