export interface SkillDirEntry {
    /** Absolute path to the skill directory the scanner emitted. */
    dir: string;
    /**
     * Optional editable upstream source path (marketplace clone for plugin-cache
     * installs). Stored for future use by routes that prefer the editable copy.
     */
    sourcePath?: string | null;
    /** Origin classification, mostly informational. */
    origin?: "source" | "installed";
}
/** Replace any existing entry for (plugin, skill). */
export declare function setSkillDirEntry(plugin: string, skill: string, entry: SkillDirEntry): void;
/** Look up an entry. Returns undefined when nothing is registered. */
export declare function getSkillDirEntry(plugin: string, skill: string): SkillDirEntry | undefined;
/** Clear the registry — used in tests. */
export declare function clearSkillDirRegistry(): void;
export declare function ensurePluginCacheEntry(plugin: string, skill: string): Promise<SkillDirEntry | undefined>;
/** Test-only: reset the scan throttle so unit tests don't see stale state. */
export declare function resetEnsureScanThrottle(): void;