Function validate_sampling_tools

src/mcp/server/validation.py:29–46

Validate that the client supports sampling tools if tools are being used. Args: client_caps: The client's declared capabilities tools: The tools list, if provided tool_choice: The tool choice setting, if provided Raises: MCPError: If tools/tool_choice are pr

(
    client_caps: ClientCapabilities | None,
    tools: list[Tool] | None,
    tool_choice: ToolChoice | None,
)

def validate_sampling_tools(
    client_caps: ClientCapabilities | None,
    tools: list[Tool] | None,
    tool_choice: ToolChoice | None,
) -> None:
    """Validate that the client supports sampling tools if tools are being used.

    Args:
        client_caps: The client's declared capabilities
        tools: The tools list, if provided
        tool_choice: The tool choice setting, if provided

    Raises:
        MCPError: If tools/tool_choice are provided but client doesn't support them
    """
    if tools is not None or tool_choice is not None:
        if not check_sampling_tools_capability(client_caps):
            raise MCPError(code=INVALID_PARAMS, message="Client does not support sampling tools capability")


def validate_tool_use_result_messages(messages: list[SamplingMessage]) -> None: