Tree · Diagram Design

Claude Code skill taxonomy

Three tiers, one root. The full skill library fans out from a single idea — and every leaf descends through exactly one category. Orthogonal connectors, one coral accent, nothing else.

TIER 0 · ROOT TIER 1 TIER 2 ROOT Skills CAT Design ui · visual · ux CAT Engineering ship · review · test CAT Research investigate · analyze polish align · space · rhythm critique hierarchy · density review pre-land diff · sql ship merge · deploy · verify investigate root cause · evidence LEGEND Root · focal Category branch Leaf skill Orthogonal connectors only. Coral marks the root — every branch descends from one idea.

THE HEADLINE

One root, one coral dot

A taxonomy is a promise: every child has exactly one parent. Coral lives on the root because that's the only node the tree is actually about — everything else is a descent.

Connectors are orthogonal

  • Parent drops vertical
  • Horizontal bus connects siblings
  • Each child drops into its top edge
  • No diagonals, no curves

Uneven breadth is honest

Design and Engineering fan to two leaves; Research drops to one. The layout reflects the real shape of the library, not a forced symmetry.