The bound or called tool ran and answered with isError: true — a domain error, not a transport or protocol failure.
isError: true
message is derived from the error result's text content blocks (via toolResultText), or "Tool returned an error." when there are none.
message
"Tool returned an error."
The tool result with isError: true.
Readonly
The error result as delivered (isError: true).
The bound or called tool ran and answered with
isError: true— a domain error, not a transport or protocol failure.messageis derived from the error result's text content blocks (via toolResultText), or"Tool returned an error."when there are none.