import type { RunAgentOptions } from '../../../agents/runner.js';
import type { Provider, ProviderType } from '../../../infra/providers/types.js';
import type { WorkflowStep } from '../../models/types.js';
type SessionCompactionDeps = {
    getProvider: (type: ProviderType) => Provider;
    warn: (message: string, meta?: Record<string, unknown>) => void;
};
export type SessionCompactionOutcome = 'reused' | 'fresh';
export declare function compactSessionBeforePhase1(step: WorkflowStep, agentOptions: RunAgentOptions, deps?: SessionCompactionDeps): Promise<SessionCompactionOutcome>;
export {};
//# sourceMappingURL=session-compaction.d.ts.map