import type { InstanceRef } from './agent-context.js';
export interface PersistedAgentState {
    selectedInstance: InstanceRef | null;
    activeProfile: string;
    contextMeta: {
        scenePath: string;
        fetchedAt: number;
    } | null;
}
export interface PersistedState {
    version: 1;
    savedAt: number;
    agents: Record<string, PersistedAgentState>;
    globalProfile: string;
    lastConnectedPort: number | null;
}
export declare class FileStateStore {
    private filePath;
    private flushTimer;
    private cachedState;
    private generation;
    constructor(projectPath: string);
    load(): Promise<PersistedState | null>;
    markDirty(getState: () => PersistedState): void;
    flush(): Promise<void>;
    destroy(): void;
    private validate;
}