/** Bumped when the on-disk layout changes shape in a way the audit must repair. */
export declare const SKYKOI_HOME_LAYOUT_VERSION = 1;
export declare const POSIX_LAUNCHER_NAME = "skykoi-launch";
export declare const WINDOWS_LAUNCHER_NAME = "skykoi-launch.cmd";
export declare function resolveLauncherFileName(platform?: NodeJS.Platform): string;
/**
 * The per-platform install home, honouring `SKYKOI_HOME` and the profile
 * suffix so parallel profiles never share a launcher or a pointer.
 */
export declare function resolveSkykoiHome(env?: Record<string, string | undefined>, platform?: NodeJS.Platform): string;
export type SkykoiHomeLayout = {
    /** Root of the install-owned home. */
    home: string;
    /** Directory holding the launcher shim. */
    launcherDir: string;
    /** The shim a service definition points at — the only baked path. */
    launcherPath: string;
    /** Names the install the shim should launch. */
    pointerPath: string;
    /** The install the shim falls back to when the current one will not start. */
    previousPointerPath: string;
    /** Staged installs, one directory per version. Reserved for staged updates. */
    versionsDir: string;
    /** Runtime locks. Unlike the OS temp dir, nothing else prunes this. */
    runDir: string;
};
export declare function resolveSkykoiHomeLayout(env?: Record<string, string | undefined>, platform?: NodeJS.Platform): SkykoiHomeLayout;
/**
 * True when `candidate` is the launcher shim for this home — the question the
 * boot self-audit asks of an installed service definition. Compared
 * case-insensitively on Windows, where the same file has many spellings.
 */
export declare function isLauncherPath(candidate: string | undefined, layout: SkykoiHomeLayout, platform?: NodeJS.Platform): boolean;