5why Root Cause Analysis
Systematic root cause analysis skill to find and fix the source of bugs, not just the symptoms.
- Identify the source of intermittent production failures with evidence
- Debug complex memory leaks or performance bottlenecks in distributed systems
- Automate diagnostic log gathering across multi-component boundaries
$9
· or 45 creditsSecure checkout via Stripe
Included in download
- Identify the source of intermittent production failures with evidence
- Debug complex memory leaks or performance bottlenecks in distributed systems
- terminal, network automation included
- Ready for Claude Code
Sample input
The web worker keeps crashing once an hour under heavy load. Every time I restart it, it happens again. Can you help me find out why?
Sample output
Analysis:
- Why? Memory limit reached (Logs: Process OOM)
- Why? Heap grows linearly during requests
- Why? Response objects aren't garbage collected
- Why? Global EventBus is holding references to every request Root cause: Memory leak in event listener registration. Fix: Implementation of .off() in cleanup.
5why Root Cause Analysis
Systematic root cause analysis skill to find and fix the source of bugs, not just the symptoms.
$9
· or 45 creditsSecure checkout via Stripe
Included in download
- Identify the source of intermittent production failures with evidence
- Debug complex memory leaks or performance bottlenecks in distributed systems
- terminal, network automation included
- Ready for Claude Code
- Instant install
Sample input
The web worker keeps crashing once an hour under heavy load. Every time I restart it, it happens again. Can you help me find out why?
Sample output
Analysis:
- Why? Memory limit reached (Logs: Process OOM)
- Why? Heap grows linearly during requests
- Why? Response objects aren't garbage collected
- Why? Global EventBus is holding references to every request Root cause: Memory leak in event listener registration. Fix: Implementation of .off() in cleanup.
About This Skill
Stop patching symptoms—eliminate root causes.
The 5Why Root Cause Analysis skill transforms your AI agent from a quick-fix bot into a systematic troubleshooter. Based on the industrial-proven Toyota Production System methodology, this skill enforces a rigorous investigative framework to ensure bugs are killed at their source rather than temporarily masked.
What it does
When triggered by a bug report or system failure, the skill initiates a multi-phase investigation:
- Recursive 5Why Inquiry: It systematically peels back layers of causality, preventing "obvious" guesses from clouding the true origin of an error.
- Evidence-Based Collection: It generates and executes diagnostic commands to verify data at component boundaries before proposing any code changes.
- Root Cause Identification: It pinpoint failures in logic, environment, or architecture that lead to recurring issues.
- Permanent Fix Implementation: It outputs solutions that target the terminal "Why," such as adding validation filters or hardening infrastructure, rather than just restarting a service or silencing a warning.
Why developer teams need this
Traditional AI prompting often results in "hallucinated fixes" where the agent tries to solve a symptom without understanding the system state. This skill forces the agent to prove its findings with logs and environment checks before touching your codebase, significantly reducing technical debt and regression rates.
Use Cases
- Identify the source of intermittent production failures with evidence
- Debug complex memory leaks or performance bottlenecks in distributed systems
- Automate diagnostic log gathering across multi-component boundaries
- Prevent recurring bugs by engineering permanent root-cause fixes
Known Limitations
- Requires access to execution logs or shell commands for evidence.
- Can be slower than quick-fixes due to recursive analysis.
- Best for logic errors rather than UI/UX visual bugs.
How to Install
mkdir -p ~/.claude/skills && curl -sL https://www.agensi.io/api/install/5why-root-cause-analysis -o /tmp/5why-root-cause-analysis.zip && unzip -o /tmp/5why-root-cause-analysis.zip -d ~/.claude/skills && rm /tmp/5why-root-cause-analysis.zipFree skills install directly. Paid skills require purchase - use the download button above after buying.
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Claude Code, Cursor, Codex, Gemini CLI, and SKILL.md-compatible agents