**This skill measures a loop. It does not teach you to build one, and it is not a diagnosis procedure.** For how to construct a red loop and what to do once it is red, use [`diagnosing-bugs`](https://github.com/mattpocock/skills) from the upstream plugin — it is more complete than anything that belonged here, and keeping a shorter copy of it beside it only made the router guess between two near-identical descriptions.
