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The GenerativeUI provider lets the model build UI on the fly instead of you authoring every screen: 
import { FastMCP, GenerativeUI } from '@prefecthq/fastmcp-ts/server'

const server = new FastMCP({ name: 'my-server' })
server.addProvider(new GenerativeUI())
// registers generate_ui and search_components tools
This page is under construction. The outline below sketches what it will cover.
  • search_components — returns the component catalog so the model can discover what it may build with.
  • generate_ui — evaluates a model-supplied component expression and returns the rendered tree.
  • Sandboxing — expressions run in an isolated VM context containing only the component builders (no Node globals), with a hard timeout.
  • When to use it — exploratory and ad-hoc UIs vs. hand-authored entrypoints.