/**
 * Beta diagnostic for logging or monitoring failures from local `toolHandlers`.
 * The original error is local only; API and transport failures propagate separately.
 */
export interface AgentToolError {
    readonly error: unknown;
    readonly tool_name: string;
    readonly session_id: string;
    readonly turn_id: string;
    readonly call_id: string;
    readonly stage: 'arguments' | 'execution' | 'output';
}
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