The **node‑stream‑meter** package provides a small Transform stream (compatible with streams2) that simply passes data through while keeping a running count of the bytes that flow through it. By optionally specifying a maximum byte size, the meter will automatically abort the pipe with an error once that threshold is exceeded, making it handy for limiting the size of HTTP requests/responses, file uploads, or any other Node.js stream‑based data flow. It’s aimed at developers who need a lightweight, plug‑and‑play way to monitor and enforce payload size limits in their Node applications.