Step-by-step SKILL.md packages an AI follows for a single kind of task.
A skill is a focused playbook - instructions, examples and constraints - that makes any model reliable at one job, from SQL reporting to changelog writing. The router fills a plan's skill slot with the best match for the request.
Welding field troubleshooting — porosity (gas entrapment, hydrogen, nitrogen), hot cracking (solidification/liquation cracking, Varestraint test, carbon equivalent CE), cold cracking/hydrogen-induced