How does this skill differ from standard Claude debugging?

It enforces a strict multi-step protocol that prioritizes tracing data flow and checking dependency states over quick fixes like adding logs or basic try-catch blocks.

Is this skill compatible with any programming language?

Yes. While the internal examples use Swift, the logical methodology of tracing data flow and verifying state is applicable to any programming language or framework.

Can this skill help with mobile development issues?

Yes, it is specifically designed with patterns common in modern app development, such as ViewModel tracing, dependency injection checks, and async operation monitoring.

Does it support backend or API debugging?

Absolutely. The methodology covers the entire stack, allowing Claude to investigate failures from the service layer down to backend infrastructure and database indexes.

Root Cause Investigator

Name: Root Cause Investigator
Author: willsigmon

bywillsigmon

•

Security & Testing

Conducts deep code investigations to identify and resolve the underlying source of bugs rather than patching superficial symptoms.

The find-bug-root-cause skill provides Claude with a rigorous methodology for debugging complex software issues by tracing data flow across the entire application stack. Instead of merely adding logs or implementing superficial band-aids, this skill guides the AI to analyze dependency initialization, asynchronous operations, and logical failures to pinpoint the exact line of code responsible for a failure. It is an essential tool for resolving intermittent issues, silent failures, and regressions where the immediate symptom masks a deeper architectural or logical flaw.

Key Features

01Systematic data flow tracing from UI to backend layers

02Defensive programming implementation after core fix

03Verification protocol for edge cases and recurrence prevention

04Logical failure pinpointing vs. symptom-level patching

057 GitHub stars

06Deep dependency and service initialization state analysis

Use Cases

01Debugging silent failures where operations complete without expected results

02Resolving race conditions in asynchronous service initialization sequences

03Investigating data mismatches between UI view models and backend data sources

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add willsigmon/sigstack find-bug-root-cause

For use in Claude.ai and ChatGPT

Download Skill