Trait Agent 

pub trait Agent: Send + Sync {
    // Required methods
    fn name(&self) -> &str;
    fn description(&self) -> &str;
    fn sub_agents(&self) -> &[Arc<dyn Agent>];
    fn run<'life0, 'async_trait>(
        &'life0 self,
        ctx: Arc<dyn InvocationContext>,
    ) -> Pin<Box<dyn Future<Output = Result<EventStream>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait;
}

The fundamental trait for all ADK agents.

Every agent — whether a simple LLM wrapper, a multi-step workflow, or a composite orchestrator — implements this trait. The runtime invokes run with an InvocationContext and consumes the returned EventStream.

Required Methods

fn name(&self) -> &str

Returns the unique name of this agent.

fn description(&self) -> &str

Returns a human-readable description of this agent’s purpose.

fn sub_agents(&self) -> &[Arc<dyn Agent>]

Returns the child agents managed by this agent.

fn run<'life0, 'async_trait>( &'life0 self, ctx: Arc<dyn InvocationContext>, ) -> Pin<Box<dyn Future<Output = Result<EventStream>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Executes the agent and returns a stream of events.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors