export declare function browserSidecarDir(sessionId: string): string;
export declare function screenshotsDir(sessionId: string): string;
export declare function domSnapshotsDir(sessionId: string): string;
export declare function writeScreenshotSidecar(sessionId: string, buffer: Buffer, tool: 'browser_open' | 'browser_observe' | 'browser_act' | 'browser_screenshot' | 'browser_extract'): Promise<{
    path: string;
    bytes: number;
}>;
export declare function writeDomSnapshotSidecar(sessionId: string, html: string): Promise<{
    path: string;
    bytes: number;
}>;