Debugging

Overview

This skill provides systematic approaches to finding and fixing bugs across all domains: application code, tests, data pipelines, ML models, and infrastructure. It covers debugging strategies, tool usage, and techniques for various types of issues including crashes, flaky tests, data quality problems, and model performance degradation.

Instructions

1. Understand the Problem

• Reproduce the issue consistently
• Gather error messages and stack traces
• Identify when the bug was introduced
• Determine the expected vs actual behavior

2. Isolate the Issue