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AG-UI: The Agent-User Interaction Protocol
An agent's work is long-running and partial, so a request/response API cannot express it: the interface needs to show thinking, a tool call in flight, a half-written answer, and state that changed underneath. AG-UI standardizes that as one stream of typed events, which is what lets you ship an agent into a customer's own frontend instead of rebuilding a UI per deployment.
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RAG & Agent System DesignYour agent workflow takes 30 seconds. Design the streaming UX, including what happens when it fails mid-stream. →medium · Free with sign-inRAG & Agent System DesignA multi-hop agent feels sluggish at p95. Design its latency budget and cut tail latency without swapping models. →hard · PremiumSystem Design & Production EngineeringDesign tracing for a multi-step agent where the failures are silent. The run returns a plausible answer that is wrong. →hard · PremiumCoding & DSAMaintain a sliding-window average over a stream of metrics, like tokens/sec. →easy · PremiumRAG & Agent System DesignYour agent ran fine all week, then burned $2,000 overnight. Find where the tokens went and cut the bill without losing quality. →hard · PremiumRAG & Agent System DesignYour support agent resolved 69% of conversations last month and 60% this week. Nobody deployed anything. What do you check first? →hard · Premium