Struct McpToolDefinition 

pub struct McpToolDefinition {
    pub name: String,
    pub description: Option<String>,
    pub input_schema: Value,
}

A tool advertised by an MCP server.

The MCP server lists its tools in response to a tools/list request. The agent then decides which tools to call based on their names and descriptions.

JSON shape (from server)

{
  "name": "read_file",
  "description": "Read the contents of a file.",
  "inputSchema": {
    "type": "object",
    "properties": { "path": { "type": "string" } },
    "required": ["path"]
  }
}

Fields

name: String

The tool’s unique name within this MCP server.

description: Option<String>

Human-readable description of what the tool does. The LLM uses this to decide whether to call the tool.

input_schema: Value

JSON Schema describing the tool’s input parameters. Follows the same JSON Schema format as OpenAI function parameters.

Trait Implementations

impl Clone for McpToolDefinition

fn clone(&self) -> McpToolDefinition

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for McpToolDefinition

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for McpToolDefinition

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for McpToolDefinition

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

where __S: Serializer,

Serialize this value into the given Serde serializer.