Struct AgentTool 

pub struct AgentTool { /* private fields */ }

Available on crate feature tools only.

AgentTool wraps an Agent to make it callable as a Tool.

When the parent LLM generates a function call targeting this tool, the framework executes the wrapped agent, captures its final response, and returns it as the tool’s result.

Implementations

impl AgentTool

pub fn new(agent: Arc<dyn Agent>) -> AgentTool

Create a new AgentTool wrapping the given agent.

pub fn with_config(agent: Arc<dyn Agent>, config: AgentToolConfig) -> AgentTool

Create a new AgentTool with custom configuration.

pub fn skip_summarization(self, skip: bool) -> AgentTool

Set whether to skip summarization.

pub fn forward_artifacts(self, forward: bool) -> AgentTool

Set whether to forward artifacts.

pub fn timeout(self, timeout: Duration) -> AgentTool

Set timeout for sub-agent execution.

pub fn input_schema(self, schema: Value) -> AgentTool

Set custom input schema.

pub fn output_schema(self, schema: Value) -> AgentTool

Set custom output schema.

Trait Implementations

impl Tool for AgentTool

fn name(&self) -> &str

Returns the unique name of this tool.

fn description(&self) -> &str

Returns a human-readable description of what this tool does.

fn parameters_schema(&self) -> Option<Value>

Returns the JSON Schema for this tool’s parameters, if any.

fn response_schema(&self) -> Option<Value>

Returns the JSON Schema for this tool’s response, if any.

fn is_long_running(&self) -> bool

Indicates whether the tool is a long-running operation. Long-running tools typically return a task ID immediately and complete the operation asynchronously.

fn execute<'life0, 'async_trait>( &'life0 self, ctx: Arc<dyn ToolContext>, args: Value, ) -> Pin<Box<dyn Future<Output = Result<Value, AdkError>> + Send + 'async_trait>>

where 'life0: 'async_trait, AgentTool: 'async_trait,

Executes the tool with the given context and arguments.

fn declaration(&self) -> Value

Returns the tool declaration that should be exposed to model providers.

fn enhanced_description(&self) -> String

Returns an enhanced description that may include additional notes. For long-running tools, this includes a warning not to call the tool again if it has already returned a pending status. Default implementation returns the base description.

fn is_builtin(&self) -> bool

Indicates whether this tool is a built-in server-side tool (e.g., google_search, url_context).

fn required_scopes(&self) -> &[&str]

Returns the scopes required to execute this tool.

fn is_read_only(&self) -> bool

Indicates whether this tool performs no side effects.

fn is_concurrency_safe(&self) -> bool

Indicates whether this tool is safe for concurrent execution.