/**
 * The shared FlowSpan / FlowTrace data shapes — the LEAF both the trace barrel
 * (`./index`, which builds + renders them) and the delegation converters
 * (`./mission-flow`, which emit them) import, so neither has to reach back
 * through the barrel. The barrel re-exports these names unchanged.
 */
export interface FlowSpan {
    kind: 'pipeline' | 'model' | 'tool';
    name: string;
    startMs: number;
    endMs: number;
    approx?: boolean;
    meta?: Record<string, unknown>;
}
/** Describe the structure of a flow trace including spans, timing, tokens, cost, and tool calls */
export interface FlowTrace {
    spans: FlowSpan[];
    totalMs: number;
    promptTokens: number;
    completionTokens: number;
    /** Computed when per-token pricing is supplied. */
    costUsd?: number;
    toolCalls: number;
}