Rewrote all existing skills for clarity and consistency, added /sprint
(session workhorse) and /create (skill/agent/hook builder), extracted
implementor and validator into standalone agent definitions, and removed
the old skill-creator skill and inline orchestrator prompts. Bump to 0.4.0.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
