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holocron/.claude/skills/tdd/deep-modules.md
Defame1297 a3bb708bff chore: bootstrap repo with chunks 1 and 2
Establishes the global AI development config repo from scratch:

- Chunk 1: repo skeleton, install.sh, statusline, deploy manifest
- Chunk 2: core instructions (coding/git/testing), CLAUDE.md rewrite
  (always-on + content index two-tier model), docs restructure,
  6 ADRs, ROADMAP.md, .gitkeep placeholders
- Bootstrap skills in .claude/skills/ (to be catalogued and migrated
  to .agents/skills/ in Chunk 3)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-10 19:29:58 +00:00

1.2 KiB

Deep Modules

From "A Philosophy of Software Design":

Deep module = small interface + lots of implementation

┌─────────────────────┐
│   Small Interface   │  ← Few methods, simple params
├─────────────────────┤
│                     │
│                     │
│  Deep Implementation│  ← Complex logic hidden
│                     │
│                     │
└─────────────────────┘

Shallow module = large interface + little implementation (avoid)

┌─────────────────────────────────┐
│       Large Interface           │  ← Many methods, complex params
├─────────────────────────────────┤
│  Thin Implementation            │  ← Just passes through
└─────────────────────────────────┘

When designing interfaces, ask:

  • Can I reduce the number of methods?
  • Can I simplify the parameters?
  • Can I hide more complexity inside?