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.
This directory owns rendered interaction, local state, and presentation. It never owns filesystem/process access or a second version of core domain rules; use `window.exograph` through preload/shared