Struct InitializeResponse

pub struct InitializeResponse {
    pub protocol_version: ProtocolVersion,
    pub capabilities: Capabilities,
    pub server_info: Implementation,
    pub instructions: Option<String>,
}

Server-to-client initialization response.

This is sent by the server in response to the client’s initialization request. It includes the server’s capabilities, server metadata, and the negotiated protocol version.

Fields

protocol_version: ProtocolVersion

Protocol version that will be used for the session

capabilities: Capabilities

Capabilities offered by the server

server_info: Implementation

Information about the server implementation

instructions: Option<String>

Optional instructions or additional information for the client

Implementations

impl InitializeResponse

pub fn new( protocol_version: ProtocolVersion, capabilities: Capabilities, server_info: Implementation, instructions: Option<String>, ) -> Self

Create a new initialization response.

Examples

use mcp_probe_core::messages::{InitializeResponse, ProtocolVersion, Capabilities, Implementation};

let response = InitializeResponse::new(
    ProtocolVersion::V2024_11_05,
    Capabilities::default(),
    Implementation::new("my-server", "1.0.0"),
    None,
);

pub fn basic( server_name: impl Into<String>, server_version: impl Into<String>, ) -> Self

Create a basic initialization response with default capabilities.

Examples

use mcp_probe_core::messages::InitializeResponse;

let response = InitializeResponse::basic("my-server", "1.0.0");

pub fn with_instructions(self, instructions: impl Into<String>) -> Self

Add instructions for the client.

Instructions can provide guidance to the client about how to use the server’s capabilities effectively.

Examples

use mcp_probe_core::messages::InitializeResponse;

let response = InitializeResponse::basic("my-server", "1.0.0")
    .with_instructions("Use the 'calculator' tool for math operations");

pub fn with_server_metadata(self, key: impl Into<String>, value: Value) -> Self

Add custom server metadata to the initialization response.

Examples

use mcp_probe_core::messages::InitializeResponse;
use serde_json::json;

let response = InitializeResponse::basic("my-server", "1.0.0")
    .with_server_metadata("supported_languages", json!(["python", "javascript"]));

Trait Implementations

impl Clone for InitializeResponse

fn clone(&self) -> InitializeResponse

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for InitializeResponse

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for InitializeResponse

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for InitializeResponse

fn eq(&self, other: &InitializeResponse) -> 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 Serialize for InitializeResponse

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for InitializeResponse

impl StructuralPartialEq for InitializeResponse