Skins for Claude Code: tool rows with icons, diff, table and Mermaid chart cards, a usage band and fifteen themes. /skin swaps them live.

Claude Code plugin: universal radial-tree exploration engine. One tree skill + swappable presets (brainstorm / attack / design / code-audit) for divergent ideation, adversarial critique, and design-space exploration. 12 framings × hard-ban-on-incomplete-leaves × stable convergence.