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.
Übernimmt die fachliche Hälfte des früheren `idea-sharpener`-Ablaufs (Spec [`0059`](../../../specs/features/0059-story-lebenszyklus-github-issues.md) / ADR [`0036`](../../../specs/decisions/0036-githu