One tool, seven renderers
How a versioned discriminated union keeps the agent surface small while the visual library expands.
Coming nextBuild what comes
after the chat box.
Architecture notes, implementation decisions, and working patterns from the frontier of MCP Apps.
Architecture · 8 min
01The dawn of MCP is stateless, interactive, and agent-native
Why HelloMCP separates model intelligence, connector access, deterministic rendering, and durable business state.
Setup without taking custody
Let the host agent discover and authorize connectors while your MCP App owns the useful interaction.
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