Struct ToolUseContent 

pub struct ToolUseContent {
    pub id: String,
    pub input: Map<String, Value>,
    pub meta: Option<Map<String, Value>>,
    pub name: String,
    /* private fields */
}

A request from the assistant to call a tool.

JSON schema

{
 "description": "A request from the assistant to call a tool.",
 "type": "object",
 "required": [
   "id",
   "input",
   "name",
   "type"
 ],
 "properties": {
   "_meta": {
     "description": "Optional metadata about the tool use. Clients SHOULD preserve this field when\nincluding tool uses in subsequent sampling requests to enable caching optimizations.\n\nSee [General fields: _meta](https://modelcontextprotocol.io/specification/2025-11-25/basic/index#meta) for notes on _meta usage.",
     "type": "object",
     "additionalProperties": {}
   },
   "id": {
     "description": "A unique identifier for this tool use.\n\nThis ID is used to match tool results to their corresponding tool uses.",
     "type": "string"
   },
   "input": {
     "description": "The arguments to pass to the tool, conforming to the tool's input schema.",
     "type": "object",
     "additionalProperties": {}
   },
   "name": {
     "description": "The name of the tool to call.",
     "type": "string"
   },
   "type": {
     "type": "string",
     "const": "tool_use"
   }
 }
}

Fields

id: String

A unique identifier for this tool use. This ID is used to match tool results to their corresponding tool uses.

input: Map<String, Value>

The arguments to pass to the tool, conforming to the tool’s input schema.

meta: Option<Map<String, Value>>

Optional metadata about the tool use. Clients SHOULD preserve this field when including tool uses in subsequent sampling requests to enable caching optimizations. See General fields: _meta for notes on _meta usage.

name: String

The name of the tool to call.

Implementations

impl ToolUseContent

pub fn new( id: String, input: Map<String, Value>, name: String, meta: Option<Map<String, Value>>, ) -> Self

pub fn type_(&self) -> &String

pub fn type_value() -> String

returns “tool_use”

pub fn type_name() -> String

👎Deprecated since 0.8.0: Use type_value() instead.

Trait Implementations

impl Clone for ToolUseContent

fn clone(&self) -> ToolUseContent

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ToolUseContent

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ToolUseContent

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<ToolUseContent> for CreateMessageContent

fn from(value: ToolUseContent) -> Self

Converts to this type from the input type.

impl From<ToolUseContent> for SamplingMessageContent

fn from(value: ToolUseContent) -> Self

Converts to this type from the input type.

impl From<ToolUseContent> for SamplingMessageContentBlock

fn from(value: ToolUseContent) -> Self

Converts to this type from the input type.

impl Serialize for ToolUseContent

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

where __S: Serializer,

Serialize this value into the given Serde serializer.