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Refine 2.0.0 concept documentation (#1742)

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Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
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Jeff Handley 2026-07-27 20:15:16 -07:00 • committed by GitHub
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docs/concepts/sampling/sampling.md
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@ -11,8 +11,11 @@ MCP [sampling] allows servers to request LLM completions from the client. This e
[sampling]: https://modelcontextprotocol.io/specification/2025-11-25/client/sampling
> [!IMPORTANT]
> Sampling is **deprecated** as of MCP specification revision `2026-07-28` ([SEP-2577](https://github.com/modelcontextprotocol/modelcontextprotocol/pull/2577), [MCP9005](xref:list-of-diagnostics#obsolete-apis)) and may be removed in a future version.
> [!NOTE]
> Sampling is a **server-to-client request** — the server sends a request back to the client over an open connection. This requires [stateful mode or stdio](xref:stateless). Sampling is not available in [stateless mode](xref:stateless#stateless-mode-recommended) because stateless servers cannot send requests to clients.
> Sampling is a **server-to-client request** — the server sends a request back to the client over an open connection. This requires [stateful mode or stdio](xref:stateless). Sampling is not available in [stateless mode](xref:stateless#stateless-mode-recommended) because stateless servers cannot send requests to clients. For a stateless-compatible alternative, throw `InputRequiredException` from your handler through MRTR — see [Multi round-trip requests (MRTR)](#multi-round-trip-requests-mrtr).
### How sampling works