import type { BackendDriver, DriverSession, StartDriverSessionInput } from './drivers/driver.js';
import type { SupenDriverOutput, SupenThread, SupenTurn } from './types.js';
import type { MemorySubsystem } from './memory/subsystem.js';
export type ThreadManagerInput = StartDriverSessionInput & {
    driverId?: string;
};
export type ThreadManagerTurnInput = Omit<ThreadManagerInput, 'threadId' | 'turnId'> & {
    thread: SupenThread;
    turn: SupenTurn;
};
export declare class ThreadManager {
    private readonly drivers;
    private readonly memorySubsystem;
    private readonly defaultDriverId;
    readonly defaultDriverSelectionReason: 'preferred-cli' | 'codex-fallback';
    constructor(drivers?: Record<string, BackendDriver>, defaultDriverId?: string, memorySubsystem?: MemorySubsystem | null);
    createThread(input: ThreadManagerInput): Promise<DriverSession>;
    createThreadForTurn(input: ThreadManagerTurnInput): Promise<DriverSession>;
    normalizeOutput(input: {
        driverId?: string;
        threadId: string;
        turnId: string;
        output: Record<string, unknown>;
    }): SupenDriverOutput[];
    resolveDriverId(driverId?: string): string;
    getMemorySubsystem(): MemorySubsystem | null;
}
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