Struct FnTool 

pub struct FnTool<F, Fut>
where
    F: Fn(Value) -> Fut + Send + Sync + 'static,
    Fut: Future<Output = Result<Value, ToolError>> + Send + 'static,
{ /* private fields */ }

Available on crate feature async only.

Internal adapter: wraps a closure and exposes it through the Tool trait. Created by ToolRegistry::register and ToolRegistry::register_described.

Implementations

impl<F, Fut> FnTool<F, Fut>

where F: Fn(Value) -> Fut + Send + Sync + 'static, Fut: Future<Output = Result<Value, ToolError>> + Send + 'static,

pub fn new(name: impl Into<String>, schema: Value, handler: F) -> Self

Build an FnTool from a name, JSON schema, and async closure.

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

Attach a description.

Trait Implementations

impl<F, Fut> Tool for FnTool<F, Fut>

where F: Fn(Value) -> Fut + Send + Sync + 'static, Fut: Future<Output = Result<Value, ToolError>> + Send + 'static,

fn name(&self) -> &str

Stable identifier the model uses to refer to this tool.

fn description(&self) -> Option<&str>

Optional human-readable description; helps the model decide when to invoke. Default returns None.

fn schema(&self) -> Value

JSON Schema describing the tool’s expected input.

fn invoke<'life0, 'async_trait>( &'life0 self, input: Value, ) -> Pin<Box<dyn Future<Output = Result<Value, ToolError>> + Send + 'async_trait>>

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

Run the tool with the model-supplied input and return its result.