export interface SpawnCommand {
    binary: string;
    args: string[];
    env?: Record<string, string>;
    cwd?: string;
}
export interface SpawnContext {
    prompt: string;
    spawn_token: string;
    cwd?: string;
}
export interface DriverAvailability {
    available: boolean;
    reason?: string;
}
export interface SpawnDriver {
    readonly runtime_kind: string;
    buildSpawnCommand(ctx: SpawnContext): SpawnCommand;
    isAvailable(): Promise<DriverAvailability>;
}
export declare class SpawnDriverRegistry {
    private readonly drivers;
    register(driver: SpawnDriver): void;
    lookup(runtime_kind: string): SpawnDriver | undefined;
    list(): readonly string[];
}
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