Function readDesignConstraints

design/src/memory.ts:195–202

(repoRoot: string)

 * If no DESIGN.md exists, returns null (explore wide).
 */
export function readDesignConstraints(repoRoot: string): string | null {
  const designPath = path.join(repoRoot, "DESIGN.md");
  if (!fs.existsSync(designPath)) return null;

  const content = fs.readFileSync(designPath, "utf-8");
  // Truncate to first 2000 chars to keep brief reasonable
  return content.slice(0, 2000);
}