export interface PluginFreshness {
    /** False when something could not be located; the rest is then advisory. */
    checked: boolean;
    stale: boolean;
    binaryPath?: string;
    binaryModified?: string;
    newestSourcePath?: string;
    newestSourceModified?: string;
    /** Whole days the source is ahead of the binary; 0 when fresh. */
    daysBehind?: number;
    reason?: string;
    message?: string;
}
/**
 * Drop a cached verdict. Called after a build, which is the only thing that
 * can flip a stale verdict to fresh sooner than the TTL.
 *
 * Per project (#817): a build targets one project, and clearing every entry
 * made the other editors re-walk their plugin binaries for no reason and, on
 * a slow disk, report a verdict they had already answered. Omitting the path
 * still clears everything, which is what a caller with no project in hand
 * wants.
 */
export declare function invalidatePluginFreshness(uprojectPath?: string | null): void;
export declare function checkPluginFreshness(uprojectPath: string | null): PluginFreshness;