Struct CreateMessageRequestParams 

pub struct CreateMessageRequestParams {
    pub meta: Option<Meta>,
    pub task: Option<JsonObject>,
    pub messages: Vec<SamplingMessage>,
    pub model_preferences: Option<ModelPreferences>,
    pub system_prompt: Option<String>,
    pub include_context: Option<ContextInclusion>,
    pub temperature: Option<f32>,
    pub max_tokens: u32,
    pub stop_sequences: Option<Vec<String>>,
    pub metadata: Option<Value>,
}

Parameters for creating a message through LLM sampling.

This structure contains all the necessary information for a client to generate an LLM response, including conversation history, model preferences, and generation parameters.

This implements TaskAugmentedRequestParamsMeta as sampling requests can be long-running and may benefit from task-based execution.

Fields

meta: Option<Meta>

Protocol-level metadata for this request (SEP-1319)

task: Option<JsonObject>

Task metadata for async task management (SEP-1319)

messages: Vec<SamplingMessage>

The conversation history and current messages

model_preferences: Option<ModelPreferences>

Preferences for model selection and behavior

system_prompt: Option<String>

System prompt to guide the model’s behavior

include_context: Option<ContextInclusion>

How much context to include from MCP servers

temperature: Option<f32>

Temperature for controlling randomness (0.0 to 1.0)

max_tokens: u32

Maximum number of tokens to generate

stop_sequences: Option<Vec<String>>

Sequences that should stop generation

metadata: Option<Value>

Additional metadata for the request

Trait Implementations

impl Clone for CreateMessageRequestParams

fn clone(&self) -> CreateMessageRequestParams

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CreateMessageRequestParams

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for CreateMessageRequestParams

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl JsonSchema for CreateMessageRequestParams

fn schema_name() -> Cow<'static, str>

The name of the generated JSON Schema.

fn schema_id() -> Cow<'static, str>

Returns a string that uniquely identifies the schema produced by this type.

fn json_schema(generator: &mut SchemaGenerator) -> Schema

Generates a JSON Schema for this type.

fn inline_schema() -> bool

Whether JSON Schemas generated for this type should be included directly in parent schemas, rather than being re-used where possible using the $ref keyword.

impl PartialEq for CreateMessageRequestParams

fn eq(&self, other: &CreateMessageRequestParams) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl RequestParamsMeta for CreateMessageRequestParams

fn meta(&self) -> Option<&Meta>

Get a reference to the meta field

fn meta_mut(&mut self) -> &mut Option<Meta>

Get a mutable reference to the meta field

fn set_meta(&mut self, meta: Meta)

Set the meta field

fn progress_token(&self) -> Option<ProgressToken>

Get the progress token from meta, if present

fn set_progress_token(&mut self, token: ProgressToken)

Set a progress token in meta

impl Serialize for CreateMessageRequestParams

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl TaskAugmentedRequestParamsMeta for CreateMessageRequestParams

fn task(&self) -> Option<&JsonObject>

Get a reference to the task field

fn task_mut(&mut self) -> &mut Option<JsonObject>

Get a mutable reference to the task field

fn set_task(&mut self, task: JsonObject)

Set the task field

impl StructuralPartialEq for CreateMessageRequestParams