The reason BoxAgnts' tool system can uniformly manage three completely different execution entities — Rust built-in functions, WASM sandbox components, and cron task triggers — comes down to a six-method Trait plus a shared-context concurrency model. This article dissects the implementation and design considerations of both.

Why the Trait Method Signatures Are Written This Way

Let's review the Tool trait:

#[async_trait]

pub trait Tool: Send + Sync {