"Mock Service Worker" matching MCP connectors:

Design review for UI code: 291 rules, scored 0-100 with fixes and git-applyable patches.

Design and export App Store / Play Store screenshots from your editor. Create projects, add screens, place device frames, mockups, text, shapes and stock photos, apply per-size and per-locale overrides across 48 App Store locales, browse the template catalog, and read back a measured layout report so the agent can check its own design.

Authored design service: one-of-one landing pages, pitch decks, and research-grounded briefs.