Rate-limits MCP tool calls with Upstash Redis, allowing a configurable number of invocations per sliding window and sharing counters across server instances.
Enables tracing mcp-use tool callbacks and capturing tool errors and exceptions in Sentry via MCP middleware, without SDK changes or additional services.
Enables chat models to generate and render interactive A2UI interfaces within MCP Apps through a single render-ui tool, supporting components like cards, sliders, and checkboxes with local state bindings.