Agent Builder • Rust AI Agent SDK

AgentBuilder: Builder for creating agents

AgentBuilder

Defined in the builder module.

Rust AI Agent SDK

Builder for creating agents

Fields

Name	Type	Description
name	Option<String>	-
instructions	Option<String>	-
llm_config	LlmConfig	-
tools	Vec<Box<dyn Tool>>	-
memory_config	MemoryConfig	-
config	AgentConfig	-

Methods

new

fn new() -> Self

Create a new agent builder

name

fn name(mut self, name: impl Into<String>) -> Self

Set the agent name

Parameters:

Name	Type
name	impl Into<String>

instructions

fn instructions(mut self, instructions: impl Into<String>) -> Self

Set the system instructions

Parameters:

Name	Type
instructions	impl Into<String>

model

fn model(mut self, model: impl Into<String>) -> Self

Set the LLM model

Parameters:

Name	Type
model	impl Into<String>

llm

fn llm(self, model: impl Into<String>) -> Self

Alias for model() - matches Python SDK

Parameters:

Name	Type
model	impl Into<String>

api_key

fn api_key(mut self, key: impl Into<String>) -> Self

Set the API key

Parameters:

Name	Type
key	impl Into<String>

base_url

fn base_url(mut self, url: impl Into<String>) -> Self

Set the base URL for the LLM API

Parameters:

Name	Type
url	impl Into<String>

temperature

fn temperature(mut self, temp: f32) -> Self

Set the temperature

Parameters:

Name	Type
temp	f32

max_tokens

fn max_tokens(mut self, max: u32) -> Self

Set max tokens

Parameters:

Name	Type
max	u32

tool

fn tool(mut self, tool: impl Tool + 'static) -> Self

Add a tool

Parameters:

Name	Type
tool	impl Tool + 'static

tools

fn tools(mut self, tools: impl IntoIterator<Item = impl Tool + 'static>) -> Self

Add multiple tools

Parameters:

Name	Type
tools	impl IntoIterator<Item

memory

fn memory(mut self, enabled: bool) -> Self

Enable memory

Parameters:

Name	Type
enabled	bool

memory_config

fn memory_config(mut self, config: MemoryConfig) -> Self

Set memory configuration

Parameters:

Name	Type
config	MemoryConfig

max_iterations

fn max_iterations(mut self, max: usize) -> Self

Set max iterations for tool calling

Parameters:

Name	Type
max	usize

verbose

fn verbose(mut self, enabled: bool) -> Self

Enable verbose output

Parameters:

Name	Type
enabled	bool

stream

fn stream(mut self, enabled: bool) -> Self

Enable/disable streaming

Parameters:

Name	Type
enabled	bool

build

fn build(self) -> Result<Agent>

Build the agent

Usage

let agent = Agent::new()
.name("assistant")
.instructions("You are helpful")
.model("gpt-4o-mini")
.build()?;

Source

View on GitHub

praisonai/src/agent/builder.rs at line 47

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