Best Practices for Triggering Client-Side UI in MCP Without Server Round-Trips

huiobb · reddit · 2026-08-09

A developer highlights latency issues in AI agent workflows, noting that the traditional Agent -> Server -> Client -> Server -> Agent loop is too slow just to render simple interactive buttons or forms.

The discussion seeks standard patterns in MCP (Model Context Protocol) or LLM app design to trigger UI components directly on the client side without requiring a new server tool execution round-trip.

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