pub trait Tool: Send + Sync {
// Required methods
fn name(&self) -> &'static str;
fn description(&self) -> &'static str;
fn schema(&self) -> Value;
fn call<'life0, 'life1, 'life2, 'async_trait>(
&'life0 self,
args: &'life1 Value,
ctx: &'life2 ToolContext,
) -> Pin<Box<dyn Future<Output = Result<Vec<Content>, AgentError>> + Send + 'async_trait>>
where 'life0: 'async_trait,
'life1: 'async_trait,
'life2: 'async_trait,
Self: 'async_trait;
// Provided method
fn metadata(&self) -> ToolMetadata { ... }
}Required Methods§
fn name(&self) -> &'static str
Sourcefn description(&self) -> &'static str
fn description(&self) -> &'static str
Human-readable description of what this tool does and when to use it.
Sourcefn schema(&self) -> Value
fn schema(&self) -> Value
JSON Schema for the tool’s input arguments (MCP inputSchema shape,
without the provider envelope).
fn call<'life0, 'life1, 'life2, 'async_trait>(
&'life0 self,
args: &'life1 Value,
ctx: &'life2 ToolContext,
) -> Pin<Box<dyn Future<Output = Result<Vec<Content>, AgentError>> + Send + 'async_trait>>where
'life0: 'async_trait,
'life1: 'async_trait,
'life2: 'async_trait,
Self: 'async_trait,
Provided Methods§
Sourcefn metadata(&self) -> ToolMetadata
fn metadata(&self) -> ToolMetadata
Machine-readable metadata for tool introspection.
The default implementation derives name and description from
Tool::name and Tool::description, sets origin to "custom",
and leaves requirements empty. Tool authors are encouraged to
override this to provide an accurate origin and version.
Dyn Compatibility§
This trait is dyn compatible.
In older versions of Rust, dyn compatibility was called "object safety".