feat: run MCP server in backend using Grafana Live #574
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This commit adds support for the MCP server to the frontend library. It provides: - `GrafanaLiveTransport`, a custom transport for MCP clients that uses the Grafana Live Protocol to communicate with the MCP server. - the `MCPClientProvider` component, which is a React context provider that provides an `MCPClient` instance to the rest of the application. - a convenience hook, `useMCPClient`, that fetches the `MCPClient` instance from the context.
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This PR adds three main things:
MCP server
The backend plugin now runs an MCP server using Grafana Live, using what is effectively a new transport. Each session is stored in a
sync.Map. Similar to the SSE transport, clients receive data over the stream and can send requests by publishing to the stream.Frontend helpers
There are a few helpers added to the frontend to make this possible (or easier) to use. Specifically:
GrafanaLiveTransport, a custom transport for MCP clients that uses the Grafana Live Protocol to communicate with the MCP server.MCPClientProvidercomponent, which is a React context provider that provides anMCPClientinstance to the rest of the application.useMCPClient, that fetches theMCPClientinstance from the context.Frontend type updates
The OpenAI types were woefully out of date; this updates various function/tool call related ones.
There's an example of all this being used in this PR to the
grafana-plugin-examplesrepo.