/** One hook-announced agent browser: an attachable loopback CDP port plus who launched it. */
export type AnnouncedCdpBrowser = {
    /** The launched browser executable (display/debug only). */
    exe: string;
    /** The browser process pid — liveness key for sweeping dead announcements. */
    pid: number;
    /** The loopback CDP port Chrome actually bound (recovered from DevToolsActivePort). */
    port: number;
    /** The fleet session (tmux session name) whose pane launched it, if known. */
    session: string | null;
    /** Announce timestamp (ms epoch). */
    ts: number;
};
/** The announce directory the hook must be pointed at (exported into pane env). */
export declare function announceDirPath(): string;
/** All live hook-announced browsers; dead-pid leftovers are swept as they are seen. */
export declare function readAnnouncedCdpBrowsers(dir?: string): AnnouncedCdpBrowser[];