Agent Skills: ask-fable

Dispatches a task to a Claude Fable 5 subagent with a prompt written the way Fable 5 wants to be prompted, and holds a back-and-forth with it across turns. Use when the user says /ask-fable, ask fable, fable, fable 5, send this to fable, hand this off to fable, get a Fable second opinion, or when a task sits at the top of the difficulty range: multi-hour or multi-day implementations, deep debugging, whole-repo review or bug hunts, dense technical screenshots, or ambiguous multithreaded requests where first-shot correctness matters.