ToolPart

@Serializable

@SerialName(value = "tool")

data class ToolPart(val id: String, val name: String, val state: ToolState = ToolState.INPUT_STREAMING, val input: String = "", val output: String? = null, val errorText: String? = null, val title: String? = null, val preliminary: Boolean = false, val subagent: Message? = null, val kind: ToolKind = ToolKind.Function, val source: String? = null, val category: ToolCategory? = null, val location: String? = null, val approvalAnswers: ApprovalAnswers = ApprovalAnswers.All) : Part(source)

One tool invocation. id is the tool call id; input is the raw JSON arguments and output the tool result as text.

Constructors

constructor(id: String, name: String, state: ToolState = ToolState.INPUT_STREAMING, input: String = "", output: String? = null, errorText: String? = null, title: String? = null, preliminary: Boolean = false, subagent: Message? = null, kind: ToolKind = ToolKind.Function, source: String? = null, category: ToolCategory? = null, location: String? = null, approvalAnswers: ApprovalAnswers = ApprovalAnswers.All)

While ToolState.APPROVAL_REQUESTED: what the approval can answer besides yes / no.