export interface PathProbes {
    home: string;
    execPath: string;
    exists(p: string): boolean;
    /** FUNCTIONAL java test (`/usr/bin/java -version`), not `command -v` —
     *  macOS ships a stub that exists but fails at run time (rumble lesson). */
    javaWorks(): boolean;
}
export declare function defaultProbes(): PathProbes;
/** Stable fnm alias bin — survives fnm version switches; launchd/systemd run
 *  no shell init, so the fnm hook never fires (rumble launchd PATH lesson). */
export declare function fnmAliasBin(p: PathProbes): string | null;
/** Keg-only Homebrew openjdk, prepended ONLY when /usr/bin/java is a
 *  non-functional stub (see Task 2 note — per-project need is probed by the
 *  generated gate script itself, not here). */
export declare function openjdkBin(p: PathProbes): string | null;
export declare function homebrewBin(p: PathProbes): string | null;
/** Absolute node bin dir: fnm stable alias when present, else the running
 *  node's own directory (process.execPath is always absolute). */
export declare function nodeBinDir(p: PathProbes): string;
export declare function buildSchedPath(p: PathProbes): string;
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