Struct RegisteredTool 

#[non_exhaustive]
pub struct RegisteredTool {
    pub tool: Arc<dyn Tool>,
    pub binding: Arc<dyn Binding>,
    pub semaphore: Arc<Semaphore>,
}

One registered tool plus the binding dispatch uses to execute it. SP-12 Task 4: Binding sits between dispatch and the Tool impl so the same tool can be served via different execution strategies (in-process, CLI subprocess, future MCP / REST / AppFunction).

SP-operability-v1 C2: semaphore enforces max_concurrent at dispatch time via try_acquire_owned — saturation returns 1002 before the tool runs. Sized from tool.definition().resources.max_concurrent: a positive value gives that many permits, 0 maps to Semaphore::MAX_PERMITS (effectively unlimited). #[non_exhaustive] is load-bearing — downstream code goes through Registry::register* so new fields can be added here without breaking external struct-literal callers.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

tool: Arc<dyn Tool>

binding: Arc<dyn Binding>

semaphore: Arc<Semaphore>

Implementations

impl RegisteredTool

pub fn definition(&self) -> &ToolDefinition

Trait Implementations

impl Clone for RegisteredTool

fn clone(&self) -> RegisteredTool

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.