{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://thinkloom.app/schemas/provenance/1.0/invocation-stream-summary.schema.json",
  "title": "Invocation stream summary",
  "description": "Bounded immutable summary of a completed or interrupted stream.",
  "type": "object",
  "properties": {
    "schema_version": {
      "const": "1.0"
    },
    "stream_id": {
      "type": "string",
      "pattern": "^stream_[0-9A-HJKMNP-TV-Z]{26}$"
    },
    "invocation_id": {
      "type": "string",
      "pattern": "^invocation_[0-9A-HJKMNP-TV-Z]{26}$"
    },
    "terminal_state": {
      "enum": [
        "COMPLETED",
        "FAILED",
        "CANCELLED",
        "ABANDONED"
      ]
    },
    "bytes_received": {
      "type": "integer",
      "minimum": 0,
      "maximum": 67108864
    },
    "chunks_received": {
      "type": "integer",
      "minimum": 0
    },
    "duration_milliseconds": {
      "type": "integer",
      "minimum": 0,
      "maximum": 1800000
    },
    "partial_output_preserved": {
      "type": "boolean"
    },
    "completed_at": {
      "type": "string",
      "format": "date-time",
      "pattern": "^\\d{4}-\\d{2}-\\d{2}T\\d{2}:\\d{2}:\\d{2}\\.\\d{3}Z$"
    }
  },
  "required": [
    "schema_version",
    "stream_id",
    "invocation_id",
    "terminal_state",
    "bytes_received",
    "chunks_received",
    "duration_milliseconds",
    "partial_output_preserved",
    "completed_at"
  ],
  "additionalProperties": false,
  "examples": [
    {
      "schema_version": "1.0",
      "stream_id": "stream_01J0000000000000000000000Q",
      "invocation_id": "invocation_01J00000000000000000000008",
      "terminal_state": "COMPLETED",
      "bytes_received": 512,
      "chunks_received": 4,
      "duration_milliseconds": 2400,
      "partial_output_preserved": false,
      "completed_at": "2026-07-17T18:43:11.456Z"
    }
  ]
}