Teaching your agent to fake the product UI convincingly

What it does Stageshow is a skill (in the Claude/agent-skills sense) for AI coding agents doing design and motion work. It guides the agent to build faux product UI in React — stills, feature cards, cursor demos, and bento grids — that looks like the real product rather than the usual gray-box placeholder mush. It ships as guidance on composition and motion, a kit to copy from, and worked examples.

The interesting bit The skill includes tools that film the result, so the agent can watch its own output and iterate. Closing the loop on visual self-review is the part most agent workflows still fumble.

Key highlights

• Built in React; covers stills, feature cards, cursor demos, and bento grids
• Includes composition and motion guidance, not just components
• Self-check tooling: the agent films its output to verify its work
• Each skill carries its own licence and third-party asset notices

Caveats

• The repo currently documents exactly one skill (Stageshow), so “skills” plural is a bit aspirational at this point
• The README doesn’t specify which agent platforms it targets beyond the generic npx skills installer

Verdict Worth a look if your agent produces marketing-site mockups or demo UIs and you’re tired of fixing them by hand. Skip it if you only work on real application code.