Sampling changedspecification/2025-06-18/client/sampling

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11# Sampling

3<div id="enable-section-numbers" />

53The Model Context Protocol (MCP) provides a standardized way for servers to request LLM

64sampling ("completions" or "generations") from language models via clients. This flow

75allows clients to maintain control over model access, selection, and permissions while

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1816their needs—the protocol itself does not mandate any specific user interaction

1917model.

2018

21<Warning>

22 For trust & safety and security, there **SHOULD** always

23 be a human in the loop with the ability to deny sampling requests.

25 Applications **SHOULD**:

27 * Provide UI that makes it easy and intuitive to review sampling requests

28 * Allow users to view and edit prompts before sending

29 * Present generated responses for review before delivery

30</Warning>

19> [!WARNING]

20>

21> For trust & safety and security, there **SHOULD** always

22> be a human in the loop with the ability to deny sampling requests.

23>

24> Applications **SHOULD**:

25>

26> * Provide UI that makes it easy and intuitive to review sampling requests

27> * Allow users to view and edit prompts before sending

28> * Present generated responses for review before delivery

3129

3230## Capabilities

3331