/**
 * Designer Extension — Built-in Design Tools for the spectral coding agent
 *
 * Brings the Open Design workflow (https://github.com/nexu-io/open-design)
 * into the spectral agent as native tools. The extension provides:
 *
 *   • Design system knowledge — curated palettes, typography, spacing from
 *     Apple, Stripe, Linear, Vercel, Notion, Airbnb, and more.
 *   • Design skill workflows — structured guides for web prototypes, SaaS
 *     landings, slide decks, mobile apps, dashboards, and social carousels.
 *   • Design guidelines — anti-AI-slop rules and a 5-dimension critique
 *     framework to keep output polished.
 *   • System prompt injection — when the user asks for design work, the
 *     extension injects designer identity and anti-slop rules into context.
 *
 * Architecture:
 *   The extension registers knowledge-retrieval tools. The LLM reads design
 *   systems and skill workflows, then uses its existing tools (write, bash,
 *   read) to produce design artifact files. This matches how Open Design
 *   works: the daemon composes a system prompt, the agent does the build.
 *
 * No packages to install — everything is embedded in this extension.
 */
import type { ExtensionAPI } from "../sdk/coding-agent/index.js";
export default function designerExtension(ext: ExtensionAPI): void;
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