/**
 * Atomic file write utilities.
 *
 * Writes to a temporary file first, then renames to the target path.
 * This prevents file corruption if the process crashes mid-write.
 */
/**
 * Write content to a file atomically.
 *
 * Creates a temporary file with random suffix, writes content, then
 * renames to target path. The rename operation is atomic on POSIX systems.
 * Cleans up the temporary file if write fails.
 *
 * Resolves symlinks to avoid overwriting the link itself (common in dotfile
 * management setups). Preserves existing file mode, or defaults to 0o600
 * (private) for new files.
 */
declare function atomicWriteFileSync(filePath: string, content: string): void;
export { atomicWriteFileSync };