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.
Normalized schema cascade delete patterns. Handles junction tables, parent-child ordering, nullify vs delete strategies. Triggers on "cascade", "delete", "cleanup", "junction", "related records", "del
