- Add piSkills option to ai-skills module for pi-only skills - Add ralph-work-loop skill (depends on pi extension) - Update skills.nix registry with nix-review, ralph-work-loop, ui-query - Add intent/approach/work docs for skill organization effort Universal skills deploy to claude/codex/opencode/gemini. Pi-only skills (ralph-work-loop) deploy to ~/.pi/agent/skills/ only.