Struct ToolDefinition 

pub struct ToolDefinition {
    pub name: String,
    pub description: Option<String>,
    pub input_schema: Value,
    pub annotations: Option<ToolAnnotations>,
}

👎Deprecated since 0.14.0:

MCP wire types now come from rmcp::model, the reference SDK, which tracks protocol revisions for us — these hand-rolled types are pinned to MCP 2025-11-25 and do not model 2026-07-28. Scheduled for removal in 0.15.0.

MCP tool definition returned in tools/list.

Fields

name: String

👎Deprecated since 0.14.0:

MCP wire types now come from rmcp::model, the reference SDK, which tracks protocol revisions for us — these hand-rolled types are pinned to MCP 2025-11-25 and do not model 2026-07-28. Scheduled for removal in 0.15.0.

description: Option<String>

👎Deprecated since 0.14.0:

MCP wire types now come from rmcp::model, the reference SDK, which tracks protocol revisions for us — these hand-rolled types are pinned to MCP 2025-11-25 and do not model 2026-07-28. Scheduled for removal in 0.15.0.

input_schema: Value

👎Deprecated since 0.14.0:

MCP wire types now come from rmcp::model, the reference SDK, which tracks protocol revisions for us — these hand-rolled types are pinned to MCP 2025-11-25 and do not model 2026-07-28. Scheduled for removal in 0.15.0.

annotations: Option<ToolAnnotations>

👎Deprecated since 0.14.0:

MCP wire types now come from rmcp::model, the reference SDK, which tracks protocol revisions for us — these hand-rolled types are pinned to MCP 2025-11-25 and do not model 2026-07-28. Scheduled for removal in 0.15.0.

Trait Implementations

impl Clone for ToolDefinition

fn clone(&self) -> ToolDefinition

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ToolDefinition

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ToolDefinition

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for ToolDefinition

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

where __S: Serializer,

Serialize this value into the given Serde serializer.