analyzing-root-causes
Root cause analysis with 5 Whys methodology. Use when investigating bugs, analyzing failures, or when user mentions root cause, 5 Whys, なぜなぜ分析, 根本原因, 原因分析, symptom fix, 対症療法.
Installation
Follow the repository instructions for this skill and your agent. Review the files and dependencies before adding it to your workflow.
View source ↗GuidesSkill instructions
Root Cause Analysis - 5 Whys
Symptom vs Root Cause
| Type | Example | Result |
|---|---|---|
| Symptom Fix | setTimeout to wait for DOM | Breaks later |
| Root Cause | Use React ref properly | Permanent fix |
| Symptom Fix | Add flag for double-submit | Complexity ↑ |
| Root Cause | Disable button on submit | Simple fix |
5 Whys Process
| Step | Question | Reveals |
|---|---|---|
| 1 | Why does this occur? | Observable fact |
| 2 | Why does that happen? | Implementation detail |
| 3 | Why is that the case? | Design decision |
| 4 | Why does that exist? | Architectural constraint |
| 5 | Why was it designed this way? | Root cause |
References
| Topic | File |
|---|---|
| 5 Whys | references/five-whys.md |
| Patterns | references/symptom-patterns.md |
Examples
Read the usage examples in the source repository.
View source ↗Source history
- Indexed on
- 2026-01-20
- Index updated
- 2026-01-26
- Branch
- main
Index and sync dates describe this directory. View the source repository for code history.
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