investigate

Guide engineers through structured four-phase root-cause debugging from symptoms to verification.

Updated Mar 26, 2026
One-click install
npx skills add https://github.com/tropeks/Vitali --skill investigate-tropeks
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: investigate
Source: https://github.com/tropeks/Vitali/tree/main/.claude/skills/gstack-investigate
Command: npx skills add https://github.com/tropeks/Vitali --skill investigate-tropeks

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Root-cause debugging is hard and time-consuming. This Skill guides engineers through a repeatable, phase-driven approach to uncover the true cause of failures rather than patching symptoms.

Core Features & Use Cases

  • Structured phases: collect symptoms, read code, generate and test hypotheses, verify fixes.
  • Guided experimentation: lightweight instrumentation and evidence gathering to confirm root causes.
  • Use Case: when a bug surfaces in a service, this Skill helps you trace the failure through logs, traces, and code paths and propose a minimal, verifiable fix.

Quick Start

Ask me to start the root-cause investigation flow with investigate, and I will guide you through collecting symptoms, forming hypotheses, testing, and implementing fixes.

Frequently Asked Questions about investigate

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

FAQPage Schema
What is a structured approach for root-cause debugging in a software service?

Root-cause debugging uses a four-phase process to uncover true failure causes: collecting symptoms, reading code, generating and testing hypotheses, and verifying fixes. This prevents patching symptoms and ensures a repeatable investigation flow.

How do I trace a bug through logs and code paths to find the root cause?

You trace bugs by collecting symptoms, reading code paths, and using guided experimentation with lightweight instrumentation. This approach gathers evidence from logs and traces to confirm root causes before proposing a minimal, verifiable fix.

What is the best way to verify a bug fix and prevent regressions?

The best way to verify a bug fix is through the final phase of root-cause debugging, which requires running tests and regression checks. This confirms the proposed minimal fix resolves the failure without introducing new issues.

Do I need a stable environment to reproduce errors for root-cause debugging?

Yes, root-cause debugging requires a stable environment to collect logs and reproduce errors. A stable setup ensures accurate evidence gathering and reliable hypothesis testing during the investigation phases.

When should I use a phase-based investigation flow instead of ad-hoc debugging?

You should use a phase-based investigation flow when a bug surfaces in a service or deployment and ad-hoc debugging is time-consuming. It provides a repeatable, structured process to move from symptoms to a verified fix.