AI News — March 3, 2026

Anthropic shipped improvements to the skill-creator tool that let skill authors verify their skills work, catch regressions, and improve trigger descriptions — without writing code. The update adds a testing layer to the Agent Skills ecosystem, making it easier to ship reliable, well-scoped skills. Directly relevant to anyone building or maintaining SKILL.md packages.

Today's stories:

• Improving skill-creator: Test, measure, and refine Agent Skills (Claude Blog) — Anthropic shipped improvements to the skill-creator tool that let skill authors verify their skills work, catch regressions, and improve trigger descriptions — without writing code. The update adds a testing layer to the Agent Skills ecosystem, making it easier to ship reliable, well-scoped skills. Directly relevant to anyone building or maintaining SKILL.md packages.