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.
Write a lane brief a worker session can run alone, and judge honestly whether a lane is done. Carries the proven charter: an honesty gate, acceptance whose evidence a reader can still see afterwards —
