/**
 * Reads text content from the OS system clipboard.
 * macOS: pbpaste. Windows: PowerShell Get-Clipboard. Linux: xclip/xsel (best-effort,
 * neither is guaranteed to be installed on a headless box, so failures are silent).
 */
export declare function readClipboard(): string;
/**
 * Writes text content to the OS system clipboard.
 * macOS: pbcopy. Windows: PowerShell Set-Clipboard. Linux: xclip/xsel (best-effort).
 */
export declare function writeClipboard(text: string): void;
/**
 * Returns true if the given text contains structural hallmarks of programming source code,
 * avoiding normal text conversations, urls, or already squeezed blocks.
 */
export declare function isCodeBlock(text: string): boolean;
/**
 * Start background polling of the system clipboard.
 * Auto-squeezes copied code snippets and alerts the developer.
 */
export declare function startClipboardWatcher(intervalMs?: number): void;
//# sourceMappingURL=ClipboardWatcher.d.ts.map