Struct Agent 

pub struct Agent { /* private fields */ }

Implementations

impl Agent

pub fn new( provider: Box<dyn Provider>, registry: Registry, approver: Arc<dyn Approver>, ctx: ToolCtx, cfg: AgentConfig, model: Option<String>, ) -> Result<Self>

pub fn context(&self) -> &Arc<RunContext>

The context a bare Agent::run will use.

pub fn ctx(&self) -> &ToolCtx

pub fn ctx_mut(&mut self) -> &mut ToolCtx

Adjust the default context in place. Copy-on-write, so any run already holding a clone of the old context is unaffected.

pub fn with_pricing(self, pricing: Option<Pricing>) -> Self

Attach per-million-token prices so cost budgets and reporting work.

pub fn with_context_window(self, window: Option<u64>) -> Self

pub fn context_window(&self) -> Option<u64>

pub fn model(&self) -> &str

pub fn registry(&self) -> &Registry

pub fn registry_mut(&mut self) -> &mut Registry

Add a tool after the agent is built.

For tools that need something only the front-end has — ask_user needs somebody to ask, and core must not assume a terminal exists.

pub fn provider_id(&self) -> &str

The provider’s own id (anthropic, local, …), for display.

pub fn set_hooks(&mut self, hooks: Arc<HookSet>)

Install lifecycle hooks on the agent’s own context. Copy-on-write like Agent::set_approver, and for the same reason.

pub fn set_outbox(&mut self, route: Arc<OutboxRoute>)

Route the configured tools through the outbox on the agent’s own context. Copy-on-write, like Agent::set_hooks.

pub fn set_approver(&mut self, approver: Arc<dyn Approver>)

Swap the approver the agent’s own context uses.

Copy-on-write, like Agent::ctx_mut: a run already holding a clone of the old context keeps the permissions it started under. Changing what a tool call is allowed to do while that call is in flight would be a worse surprise than waiting for the turn to end.

pub fn system(&self) -> Option<&str>

The resolved system prompt actually being sent — not the config’s system_prompt, which may name a file rather than hold the text.

pub fn config(&self) -> &AgentConfig

pub async fn run( &self, convo: &mut Conversation, events: Option<UnboundedSender<AgentEvent>>, ) -> Result<RunOutcome>

Run until the model stops calling tools.

messages is the live conversation: it is appended to in place, so a REPL can call this repeatedly and keep the history.

pub async fn run_in( &self, cx: &RunContext, convo: &mut Conversation, events: Option<UnboundedSender<AgentEvent>>, ) -> Result<RunOutcome>

Run against a caller-supplied context instead of the agent’s own.

The same agent — same provider connection, same registry, same prompt cache — can then serve concurrent runs that are jailed to different directories under different permissions.