import type { SpanSnapshot } from './span-to-ndjson-mapper.js';
import type { UsageMissingReason } from './contracts.js';
import { type ProviderType } from '../../shared/types/provider.js';
export type PhaseUsageType = 'phase1_execute' | 'phase2_report' | 'phase3_structured' | 'phase3_tag' | 'phase3_fallback';
export type PhaseUsageStepType = 'agent' | 'system' | 'workflow_call';
type PhaseName = 'execute' | 'report' | 'judge';
type JudgeMethod = 'structured_output' | 'phase3_tag' | 'ai_judge';
type JudgeStage = 1 | 2 | 3;
export interface PhaseUsageEventLogRecord {
    run_id: string;
    session_id: string;
    provider: ProviderType;
    provider_model: string;
    step: string;
    step_type: PhaseUsageStepType;
    persona?: string;
    tags?: string[];
    phase: PhaseUsageType;
    phase_name: PhaseName;
    phase_execution_id?: string;
    judge_stage?: JudgeStage;
    judge_method?: JudgeMethod;
    timestamp: string;
    success: boolean;
    usage_missing: boolean;
    reason?: UsageMissingReason;
    usage: {
        input_tokens?: number;
        output_tokens?: number;
        total_tokens?: number;
        cached_input_tokens?: number;
        cache_creation_input_tokens?: number;
        cache_read_input_tokens?: number;
    };
}
export interface PhaseUsageEventContext {
    runId: string;
    sessionId: string;
}
export declare function mapSpanEndToPhaseUsageEvent(span: SpanSnapshot, context: PhaseUsageEventContext): PhaseUsageEventLogRecord | undefined;
export {};
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