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principle-exhaust-the-design-space

This skill guides building 2-3 competing prototypes for novel UI interactions or architectural decisions with no codebase precedent, then comparing them side by side before committing to an implementation. Use it when multiple viable approaches exist and the best choice isn't obvious.

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About this skill

This skill guides building 2-3 competing prototypes for novel UI interactions or architectural decisions with no codebase precedent, then comparing them side by side before committing to an implementation. Use it when multiple viable approaches exist and the best choice isn't obvious.

SKILL.md

Exhaust the Design Space

When a novel interaction or architectural decision has no established precedent, explore several concrete alternatives before implementation. Building the wrong thing costs more than exploring three options.

The rule. When the right answer is not obvious, build 2-3 competing prototypes or sketches. Compare them side by side. Only then commit. Design it twice is this rule by another name. A second flavor of the first shape does not count.

When it applies:

  • Novel UI interactions (no prior art in the codebase)
  • Architectural choices with multiple viable approaches
  • Product design decisions where user experience depends on feel, not logic

When it doesn't:

  • Mechanical implementation where the pattern is established
  • Bug fixes or refactors with a clear target state
  • Changes where constraints dictate a single viable approach

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