01 — The header
Four lines decide when
Every skill opens with frontmatter: a name and a description. That description is the entire trigger — Claude reads it, decides whether the task in front of it matches, and only then loads the rest of the file. Which makes these the highest-leverage sentences in the project: too vague and the skill never fires, too greedy and it fires on everything. This one names the artefacts it covers, so it answers to the actual job rather than to the word design.


