Enum ToolCompositeEntry 

pub enum ToolCompositeEntry {
    Function(Arc<dyn ToolFunction>),
    BuiltIn(Tool),
    Agent {
        name: String,
        description: String,
        agent: Arc<dyn TextAgent>,
    },
    Mcp {
        params: String,
    },
    A2a {
        url: String,
        skill: String,
    },
    Mock {
        name: String,
        description: String,
        response: Value,
    },
    OpenApi {
        name: String,
        spec_url: String,
    },
    Search {
        name: String,
        description: String,
    },
    Schema {
        name: String,
        schema: Value,
    },
    Transform {
        inner: Box<ToolCompositeEntry>,
        transformer: Arc<dyn Fn(Value) -> Pin<Box<dyn Future<Output = Value> + Send>> + Send + Sync>,
    },
}

An entry in a tool composite.

Variants

Function(Arc<dyn ToolFunction>)

A runtime tool function.

BuiltIn(Tool)

A built-in Gemini tool declaration.

Agent

A text agent wrapped as a tool.

Fields

name: String

Tool name exposed to the model.

description: String

Tool description exposed to the model.

agent: Arc<dyn TextAgent>

The text agent to invoke.

Mcp

An MCP (Model Context Protocol) toolset connection.

Fields

params: String

Connection params (e.g. URL or command string).

A2a

A remote agent-to-agent tool.

Fields

url: String

URL of the remote agent.

skill: String

Skill to invoke on the remote agent.

Mock

A mock tool that returns a fixed response (useful for testing).

Fields

name: String

Tool name.

description: String

Tool description.

response: Value

Fixed response to return.

OpenApi

An OpenAPI spec-driven tool (placeholder/marker).

Fields

name: String

Tool name.

spec_url: String

URL to the OpenAPI spec.

Search

A BM25 search tool (placeholder/marker).

Fields

name: String

Tool name.

description: String

Tool description.

Schema

A schema-defined tool (placeholder/marker).

Fields

name: String

Tool name.

schema: Value

JSON Schema defining the tool’s parameters.

Transform

A tool wrapped with a result transformer.

Fields

inner: Box<ToolCompositeEntry>

The inner tool entry.

transformer: Arc<dyn Fn(Value) -> Pin<Box<dyn Future<Output = Value> + Send>> + Send + Sync>

Transformer function applied to the tool result.

Trait Implementations

impl Clone for ToolCompositeEntry

fn clone(&self) -> ToolCompositeEntry

Returns a duplicate of the value.

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

Performs copy-assignment from source.