systematic-debugging
遇到任何 bug、测试失败、构建失败或意外行为时、在提出修法之前使用——按「根因调查 → 模式分析 → 假设验证 → 实施」四阶段排障，先找根因再动手；修 3 次不成就质疑架构。
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Files
- skills/systematic-debugging/SKILL.md
- skills/systematic-debugging/condition-based-waiting.md
- skills/systematic-debugging/defense-in-depth.md
- skills/systematic-debugging/root-cause-tracing.md
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