/**
 * Debug and verbose output utilities.
 *
 * Per clig.dev guidelines:
 * - --debug: Show stack traces, internal state, detailed error info
 * - --verbose: Show operational details (what's happening, timing, API calls)
 *
 * Both output to stderr to keep stdout clean for data.
 */
/**
 * Set the debug flag (typically from CLI --debug option)
 */
export declare function setDebugEnabled(enabled: boolean): void;
/**
 * Set the verbose flag (typically from CLI --verbose option)
 */
export declare function setVerboseEnabled(enabled: boolean): void;
/**
 * Check if debug mode is enabled
 */
export declare function isDebugEnabled(): boolean;
/**
 * Check if verbose mode is enabled
 */
export declare function isVerboseEnabled(): boolean;
/**
 * Output debug information (stack traces, internal state).
 * Only outputs when --debug flag is set.
 */
export declare function debug(message: string, data?: unknown): void;
/**
 * Output verbose operational information (API calls, timing).
 * Only outputs when --verbose flag is set.
 */
export declare function verbose(message: string): void;
/**
 * Time an async operation and log it (verbose mode only).
 * Returns the result of the operation.
 */
export declare function verboseTime<T>(label: string, operation: () => Promise<T>): Promise<T>;
/**
 * Reset debug/verbose state (useful for testing)
 */
export declare function resetDebugState(): void;
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