Struct ClientCapabilities 

pub struct ClientCapabilities {
    pub tools: bool,
    pub prompts: bool,
    pub resources: bool,
    pub sampling: bool,
}

Client capability configuration

Defines the capabilities that this client supports when connecting to MCP servers. These capabilities are sent during the initialization handshake to negotiate which features will be available during the session.

Examples

use turbomcp_client::ClientCapabilities;

let capabilities = ClientCapabilities {
    tools: true,
    prompts: true,
    resources: true,
    sampling: false,
};

Fields

tools: bool

Whether the client supports tool calling

prompts: bool

Whether the client supports prompts

resources: bool

Whether the client supports resources

sampling: bool

Whether the client supports sampling

Implementations

impl ClientCapabilities

pub fn all() -> Self

All capabilities enabled (tools, prompts, resources, sampling)

This is the most comprehensive configuration, enabling full MCP protocol support.

Example

use turbomcp_client::ClientCapabilities;

let capabilities = ClientCapabilities::all();
assert!(capabilities.tools);
assert!(capabilities.prompts);
assert!(capabilities.resources);
assert!(capabilities.sampling);

pub fn core() -> Self

Core capabilities without sampling (tools, prompts, resources)

This is the recommended default for most applications. It enables all standard MCP features except server-initiated sampling requests.

Example

use turbomcp_client::ClientCapabilities;

let capabilities = ClientCapabilities::core();
assert!(capabilities.tools);
assert!(capabilities.prompts);
assert!(capabilities.resources);
assert!(!capabilities.sampling);

pub fn minimal() -> Self

Minimal capabilities (tools only)

Use this for simple tool-calling clients that don’t need prompts, resources, or sampling support.

Example

use turbomcp_client::ClientCapabilities;

let capabilities = ClientCapabilities::minimal();
assert!(capabilities.tools);
assert!(!capabilities.prompts);
assert!(!capabilities.resources);
assert!(!capabilities.sampling);

pub fn only_tools() -> Self

Only tools enabled

Same as minimal(), provided for clarity.

pub fn only_resources() -> Self

Only resources enabled

Use this for resource-focused clients that don’t need tools or prompts.

Example

use turbomcp_client::ClientCapabilities;

let capabilities = ClientCapabilities::only_resources();
assert!(!capabilities.tools);
assert!(!capabilities.prompts);
assert!(capabilities.resources);

pub fn only_prompts() -> Self

Only prompts enabled

Use this for prompt-focused clients that don’t need tools or resources.

Example

use turbomcp_client::ClientCapabilities;

let capabilities = ClientCapabilities::only_prompts();
assert!(!capabilities.tools);
assert!(capabilities.prompts);
assert!(!capabilities.resources);

pub fn only_sampling() -> Self

Only sampling enabled

Use this for clients that exclusively handle server-initiated sampling requests.

Trait Implementations

impl Clone for ClientCapabilities

fn clone(&self) -> ClientCapabilities

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ClientCapabilities

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

Formats the value using the given formatter.

impl Default for ClientCapabilities

fn default() -> ClientCapabilities

Returns the “default value” for a type.