Cast

Agentic collaborator that watches how you work and can inspect, generate, and edit designs in real-time –– based on your actual working style.

Collaborate in real-time ("Cowork")Cast works alongside you. It watches as you design, waits for you to pause, then picks up the thread. No prompt-writing handoff ritual (“now do this”) after every step.

Turn corrections into skillsWhen you fix Cast's work, it captures what changed and turns your edits into reusable, file-local skills. No re-explaining over and over again.

Call the token policeCast remembers your design system, so it can catch raw values and off-system styles as you work — then swaps them for the right tokens automatically. No more manual audits.

How to use(1) Console (recommended)Connect any harness (Claude Code, Codex, Cursor, etc).

Send this repo to your agent ask to install CLI and skill.(2) ChatAdd OpenAI/OpenRouter API keys and chat right inside of Figma.