Struct LlmAgentBuilder 

pub struct LlmAgentBuilder { /* private fields */ }

Builder for LlmAgent – fluent API for declaring tools, middleware, sub-agents.

Implementations

impl LlmAgentBuilder

pub fn tool(self, tool: impl ToolFunction + 'static) -> Self

Register a regular function tool.

pub fn typed_tool<T>(self, tool: TypedTool<T>) -> Self

where T: DeserializeOwned + JsonSchema + Send + Sync + 'static,

Register a typed tool with auto-generated JSON Schema.

pub fn streaming_tool(self, tool: impl StreamingTool + 'static) -> Self

Register a streaming tool.

pub fn input_streaming_tool( self, tool: impl InputStreamingTool + 'static, ) -> Self

Register an input-streaming tool.

pub fn middleware(self, mw: impl Middleware + 'static) -> Self

Add middleware to the agent.

pub fn plugin(self, plugin: impl Plugin + 'static) -> Self

Add a plugin to the agent.

pub fn sub_agent(self, agent: impl Agent + 'static) -> Self

Register a sub-agent (enables transfer_to_{name} tool).

pub fn tool_timeout(self, timeout: Duration) -> Self

Set the default timeout for tool execution.

pub fn build(self) -> LlmAgent

Build the LlmAgent, freezing all tool declarations.

This:

1. Auto-registers transfer_to_{name} SimpleTool for each sub_agent
2. Prepends TelemetryMiddleware
3. Returns the frozen LlmAgent