/**
 * Scan process.env for keys that start with "VIBE_TOOLS_" and copy their values
 * to the same key without that prefix. Prefixed values always override.
 *
 * Example:
 *   VIBE_TOOLS_OPENAI_API_KEY => OPENAI_API_KEY
 */
export declare function applyVibePrefixedOverrides(env?: Record<string, string | undefined>, prefix?: string): void;