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A Philosophy of Software Design

Tame complexity with deep modules and information hiding. (For developers.)

Part of Book skills by @wondelai

Applies John Ousterhout's principles — deep modules, information hiding, strategic programming — to manage complexity.

What it does

  • Designs deep modules that hide complexity.
  • Trades tactical hacks for strategic design.

How to install (2 minutes)

  1. 1Download the .zip and unzip it — you’ll get a folder called software-design-philosophy.
  2. 2In the Claude app: open Settings → Capabilities → Skills, choose Add / Upload, and select the folder (or the .zip).
  3. 3In Claude Code: drop the folder into your project’s .claude/skills/ directory, then type /skills to confirm it loaded.
  4. 4That’s it — the skill activates on its own when it fits what you’re doing.

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