/**
 * Truncate a log file to roughly {@link KEEP_SIZE} bytes if it exceeds
 * {@link MAX_LOG_SIZE}, cutting at the first newline so we don't start mid-line.
 */
export declare function truncateLogFile(logFile: string): void;
/**
 * Set up debug logging. When {@link MASTRA_DEBUG} is `"true"`, redirects
 * `console.error` and `console.warn` to a log file (truncating it first if
 * oversized). Otherwise silences them to avoid corrupting the TUI.
 */
export declare function setupDebugLogging(): void;
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