Struct AgentBuilder 

pub struct AgentBuilder<M> { /* private fields */ }

Fluent builder for Agent.

Implementations

impl<M: CompletionModel> AgentBuilder<M>

pub fn preamble(self, preamble: impl Into<String>) -> Self

Set the system prompt.

pub fn tool<T: Tool + 'static>(self, tool: T) -> Self

Register a tool.

pub fn temperature(self, temperature: f64) -> Self

Set the sampling temperature.

pub fn max_tokens(self, max_tokens: u32) -> Self

Set the maximum tokens to generate.

pub fn max_iterations(self, n: u32) -> Self

Override the default iteration cap (10) for the tool-call loop.

pub fn thinking(self, enabled: bool) -> Self

Explicitly turn the model’s thinking/reasoning mode on (true) or off (false). Leave unset to use the provider’s own default.

Best-effort and provider-specific — see CompletionRequest::thinking for exactly how each provider interprets this. Regardless of this setting, Agent::prompt/Agent::chat only ever return the final answer text — a reasoning trace, if the provider returns one, is never mixed into it.

pub fn context(self, doc: impl Into<String>) -> Self

Append a static context document (e.g. retrieved RAG chunks).

pub fn build(self) -> Agent<M>

Consume the builder and produce an Agent.