ItemDeltaParams

item/delta params: a UTF-8-safe streaming append to an open item’s field. Ephemeral-sourced by definition: this params object has no sourceRange member at all. Deltas never bump revision.

Fields and variants

• delta
• field
• itemId
• sessionId
• viewCursor

Source

schema/msp/experimental/msp.schema.json#/types/ItemDeltaParams

{
  "description": "`item/delta` params: a UTF-8-safe streaming append to an\nopen item's field. Ephemeral-sourced by definition: this params object\nhas **no** `sourceRange` member at all. Deltas never bump `revision`.",
  "properties": {
    "delta": {
      "description": "The appended text; concatenation of a field path's deltas in cursor\norder equals that field's value on `item/completed` unless the\nsurface saturated.",
      "type": "string"
    },
    "field": {
      "description": "Dotted field path the append targets (`\"summary.0\"`, `\"output\"`,\n...); absent means `\"text\"`.",
      "type": "string"
    },
    "itemId": {
      "description": "The open item being appended to.",
      "type": "string"
    },
    "sessionId": {
      "description": "The owning session.",
      "type": "string"
    },
    "viewCursor": {
      "description": "Opaque, strictly monotonic view cursor.",
      "type": "string"
    }
  },
  "required": [
    "delta",
    "itemId",
    "sessionId",
    "viewCursor"
  ],
  "type": "object"
}