annoops is a small utility library that implements basic arithmetic and logical operators (e.g., +, –, *, /, etc.) as JavaScript functions. Each operator function is wrapped with the **annojs** annotation system to deliver clearer runtime errors and richer metadata, making it useful for developers who want explicit, composable operator functions (e.g., in functional programming or code‑generation contexts). The project is MIT‑licensed and aimed at JavaScript programmers who need annotated, reusable operator utilities.