export interface OpenToolSpanForCommandParent {
    span_id: `span_${string}`;
    turn_id?: `tid_${string}`;
    requested_event_id?: `evt_${string}`;
    tool_name?: string;
}
/**
 * Choose a command's tool parent only when attribution cannot silently pick
 * the wrong span. A single open tool is unambiguous. With parallel tools,
 * exactly one shell-class span may be selected; every other case stays
 * top-level so any over-count remains visible.
 */
export declare function selectCommandParentSpan(spans: readonly OpenToolSpanForCommandParent[], turnId: `tid_${string}`): `span_${string}` | undefined;
export declare function isShellToolName(name: string | undefined): boolean;
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