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applying-code-principles
by thkt
⭐ 3🍴 0📅 Jan 24, 2026
Run in ManusSKILL.md
name: applying-code-principles description: > Fundamental software principles - SOLID, DRY, Occam's Razor, Miller's Law, YAGNI, Readable Code. Use when applying design principles, refactoring code, or when user mentions 原則, シンプル, 複雑, リファクタリング, 保守性, clean code, best practice. allowed-tools: [Read, Grep, Glob] user-invocable: false
Code Principles
Priority Order
| Priority | Principle | When to Apply |
|---|---|---|
| 1 | Safety First | Security, data integrity |
| 2 | YAGNI | Don't build what you don't need |
| 3 | Occam's Razor | Simplest solution |
| 4 | SOLID | For complex systems |
| 5 | DRY | Eliminate duplication (not at cost of clarity) |
| 6 | Miller's Law | Respect 7±2 cognitive limit |
Quick Checks
See CLAUDE.md Development Checks section (always loaded, single source of truth).
Thresholds
| Target | Ideal | Max | Limit |
|---|---|---|---|
| Function args | 3 | 5 | 7 |
| Class methods | 5 | 7 | 9 |
| Conditionals | 3 | 5 | 7 |
Rules
| Principle | Rule |
|---|---|
| DRY | Abstract on 3rd duplication (Rule of Three) |
| SOLID | Interface only when 2nd implementation appears |
| YAGNI | Build only if problem exists now |
| Readable | New team member understands in < 1 minute |
Score
Total Score
50/100
Based on repository quality metrics
✓SKILL.md
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+20
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0/15
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0/10
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+5
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+5
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0/5
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