ReadonlytypeReadonlyagentReadonlytoolReadonlytoolReadonlyresultOptional ReadonlyerrorOptionalretryOptional flag that can be set by hook callbacks to request a retry of the tool call. When set to true, the agent will re-execute the tool.
Event triggered after a tool execution completes. Fired after tool execution finishes, whether successful or failed. Uses reverse callback ordering for proper cleanup semantics.