Struct CreateMessageParams 

pub struct CreateMessageParams {
    pub messages: Vec<SamplingMessage>,
    pub model_preferences: Option<ModelPreferences>,
    pub system_prompt: Option<String>,
    pub include_context: Option<String>,
    pub temperature: Option<f64>,
    pub max_tokens: u32,
    pub stop_sequences: Option<Vec<String>>,
    pub metadata: Option<Value>,
    pub tools: Option<Vec<McpToolDefinition>>,
    pub tool_choice: Option<ToolChoice>,
    pub task: Option<TaskMetadata>,
    pub meta: Option<Value>,
}

Parameters for sampling/createMessage request.

Fields

messages: Vec<SamplingMessage>

model_preferences: Option<ModelPreferences>

The server’s preferences for which model to select.

system_prompt: Option<String>

An optional system prompt the server wants to use for sampling.

include_context: Option<String>

A request to include context from one or more MCP servers.

temperature: Option<f64>

max_tokens: u32

The requested maximum number of tokens to sample.

stop_sequences: Option<Vec<String>>

metadata: Option<Value>

Optional metadata to pass through to the LLM provider.

tools: Option<Vec<McpToolDefinition>>

Tools that the model may use during generation.

tool_choice: Option<ToolChoice>

Controls how the model uses tools.

task: Option<TaskMetadata>

Task metadata if requesting task-augmented execution.

meta: Option<Value>

Request metadata.

Trait Implementations

impl Clone for CreateMessageParams

fn clone(&self) -> CreateMessageParams

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for CreateMessageParams

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for CreateMessageParams

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for CreateMessageParams

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.