/**
 * Global-store cross-store hint helper.
 *
 * When a target/key is not found in the resolved (repo-local) store, this
 * helper safely peeks at the GLOBAL store's manifest (names only — never
 * decrypts values) and returns a suggestion string if the requested
 * target/key name is found there.
 *
 * Design constraints:
 * - Never decrypts secret values; reads only structural manifest names.
 * - Never throws; all failures return undefined (best-effort, graceful).
 * - Never fires when the resolved store IS already the global store.
 * - The global store root is overridable via `globalStoreRootOverride` so
 *   tests can point this at a temp directory without touching HOME.
 */
export interface GlobalStoreHintOptions {
    /**
     * Override the global store root for tests (defaults to ~/.hush).
     */
    globalStoreRootOverride?: string;
}
/**
 * Build a cross-store hint string if the missing target or key exists in the
 * global store (~/.hush), and the current resolved store is NOT the global store.
 *
 * Returns `undefined` when:
 * - the resolved store root IS the global store (no hint needed)
 * - the global store does not exist
 * - the global store manifest cannot be read
 * - the target/key is not found in the global store
 *
 * @param missingName  The target name or key name that was not found.
 * @param kind         'target' or 'key' — used in the hint wording.
 * @param resolvedRoot The resolved store root for the current command.
 * @param options      Optional overrides (test hook for globalStoreRootOverride).
 */
export declare function globalStoreHint(missingName: string, kind: 'target' | 'key', resolvedRoot: string, options?: GlobalStoreHintOptions): string | undefined;
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