The router is the default entry point. Invoke it explicitly in a session:
Use $python-router to plan this Python task.
The router resolves the task to the smallest useful follow-on skill;
each skill loads only its own SKILL.md until a reference is needed.
Avoid loading more than one language skill and one domain or quality
skill in the same turn.
For a known pressure point, call the skill directly:
Use $python-types-and-apis to review this `ParamSpec` decorator for
type-checker friendliness.