Open any /skills entry. The description should say when to use it. Tags are filters, not a rank.
If meta.install is present, it is a starting command. Confirm the repo still has a SKILL.md before you trust it.
installs 0 on editorial notes means we did not invent a download count. Official badges come from the upstream author.
After you install, invoke it by name on a small task. See how to pick a skill and how to write a SKILL.md.