The agentskills.io spec recommends two things in every description: start with an action verb, and include a trigger phrase like "use when..." that tells the routing layer when to fire the skill. They take five seconds to add and they're the difference between a skill an agent picks up and a skill that sits unused in the catalog.

I sampled 500 skills at random from a 1,436-skill public corpus and measured both. 5.8% follow both recommendations. 61.8% follow neither.

The full breakdown of what the SKILL.md ecosystem actually looks like in production, as of late April 2026.

Methodology

Corpus: sickn33/antigravity-awesome-skills at HEAD on April 29, 2026.…