Optionalid: stringOptionalname: stringOptionalarg_string: stringOptionalfinished: booleanOptionalresult: ToolCallResultProtected Optional_Protected Optional_Protected Optional_Protected_Protected Optional_Protected Optional_Protected Optional_Protected Optional_Protected Optional_Protected_Protected Optional_Protected Optional_Protected_ReadonlykindStatic ReadonlytypeRepresents the content as a string. Returns undefined if the content
is purely informational and/or visual and should not be included in the overall
representation of the response.
Optionalreason: unknownMark the tool call as completed with the given result.
This is used to update the UI immediately when a tool finishes execution, without waiting for all parallel tool calls to complete. The language model batches tool results (via Promise.all) before yielding them to the stream, so without this early completion signal, the UI wouldn't update until all tools finish. The values set here will be overwritten by merge() when the language model eventually yields the results, but they should be identical.
Confirm the tool execution
Optionalreason: stringProtectedparseSignal that this tool call needs user confirmation. Resolves the needsUserConfirmation promise.
ProtectedresolveStaticis
Resolves when the tool call requires user confirmation (show Allow/Deny UI).