/** Whether the Cursor IDE appears installed (app binaries or app data, not our hook file). */
export declare function isCursorAppInstalled(): boolean;
/**
 * Whether any client of the Claude-format hook family appears installed:
 * Claude Code, VS Code (Copilot agent mode), or GitHub Copilot CLI — one
 * `~/.claude/settings.json` hook file covers all three.
 */
export declare function isClaudeFamilyAppInstalled(): boolean;