/**
 * Save a design discussion document to disk as a markdown file.
 * Overwrites any existing document with the same specId.
 *
 * The content should be a complete markdown document with sections:
 * - Current State
 * - Desired End State
 * - Patterns to Follow
 * - Resolved Design Decisions
 * - Open Questions
 */
export declare function saveDesign(projectRoot: string, specId: string, content: string): Promise<void>;
/**
 * Read a design discussion document by specId.
 * Returns the raw markdown content.
 * Throws if not found.
 */
export declare function readDesign(projectRoot: string, specId: string): Promise<string>;
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