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 repository's authoritative agent guide is **`CLAUDE.md`** at the repository root. Every agent runtime that reads `AGENTS.md` should treat that file as the canonical source.