investigate

Identifies and documents root causes of bugs from error reports and stack traces.

Updated Apr 5, 2026
One-click install
npx skills add https://github.com/makyua-san/usecase-agent --skill investigate-makyua-san
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: investigate
Source: https://github.com/makyua-san/usecase-agent/tree/main/.claude/skills/investigate
Command: npx skills add https://github.com/makyua-san/usecase-agent --skill investigate-makyua-san

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Systematic debugging to identify and verify the root cause of bugs before applying fixes, reducing repeated incidents and regression risk.

Core Features & Use Cases

  • Four-phase workflow: investigate, analyze, hypothesize, implement, to drive durable resolutions.
  • Proactive debugging prompts: triggers structured analysis when users report errors, stack traces, or unexpected behavior.
  • Guardrails for safe fixes: ensures root causes are found and documented before changes are made.

Quick Start

Ask it to run a root-cause investigation on a failing system and follow the four phases to identify the root cause.

Frequently Asked Questions about investigate

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I identify the root cause of a bug from a stack trace?

Root-cause debugging identifies the underlying cause of unexpected behavior by running a structured four-phase workflow: investigate, analyze, hypothesize, and implement, ensuring fixes are verified before changes are applied.

What is the best way to debug production incidents and prevent regressions?

The best way to debug production incidents is using guided root-cause analysis that documents the verified cause before applying fixes, which reduces repeated incidents and minimizes regression risk.

How do I start a root-cause investigation on a failing system?

To start a root-cause investigation on a failing system, trigger the debugging workflow with the reported error or behavior, then follow the four structured phases to drive durable resolutions.

Can I use structured troubleshooting to fix unexpected software behavior without causing new issues?

Yes, structured troubleshooting uses guardrails to ensure the root cause is found and documented before any code changes are made, preventing unsafe fixes and new issues.

Why should I document root causes before implementing bug fixes?

You should document root causes before implementing bug fixes to ensure traceable verification, confirm the exact failure mechanism, and significantly reduce the risk of repeated incidents or regressions.