Buglyst Blog
Learn to debug under pressure.
Playbooks for fast pattern recognition, guides for the full investigation, and articles for the engineering judgment around the edges.
17 playbooks · 509 guides · 95 articles · 12 linked practice labs ·skip to practice
Fast pattern recognition for the production failures engineers see most often.
17 playbooks
Debugging Env Var Issues
A concise checklist for incidents where local works but CI, staging, or production changes behavior.
Debugging Cache Stampedes
How to recognize and contain request spikes when cached data expires.
Debugging CORS Origin Bugs
A practical way to inspect origin parsing, credentials, and header behavior.
Debugging Retry Bugs
Retry issues often hide the first failure and create duplicate work.
Debugging Timezone Bugs
Time bugs usually live at day boundaries, DST changes, and unit conversions.
Debugging Pagination Bugs
Pagination bugs hide in boundary math, cursor reuse, and new records arriving between pages.
Structured investigations for the failure modes engineers meet in real systems.
Angular Zone.js Change Detection Performance: Diagnosing and Fixing Slow Updates
A practical guide to diagnosing and fixing performance issues caused by Zone.js change detection in Angular applications, with real-world debugging steps and a war story.
Angular Standalone Component Import Error: What Actually Works
A debugging guide for Angular standalone component import errors – the import-not-found and unexpected directive issues you hit in real projects.
Angular Signals Not Updating the Template: Debugging Guide
A practical guide to debugging Angular Signals that fail to trigger template updates. Covers change detection, signal creation, and common pitfalls.
Angular Universal Hydration Mismatch: Debugging the Client-Server DOM Divergence
A practical guide to diagnosing and fixing Angular Universal hydration mismatches, focusing on real-world causes like non-deterministic renders, third-party scripts, and browser extension interference.
Angular HTTP Interceptor Not Firing: Real Causes and Fixes
Is your Angular HTTP interceptor silently failing? This guide covers the non-obvious reasons—from provider scoping to AOT issues—with concrete commands to verify.
C# Async/Await Deadlock in .NET: Blocking on Async Causes Hang
A focused guide on diagnosing and fixing deadlocks caused by blocking on async code in .NET applications, covering WinForms, WPF, ASP.NET Classic, and SynchronizationContext issues.
Long-form thinking on debugging habits, observability, and the systems around the bug.
How to Debug a Regression: A Practical Walkthrough
A practical, step-by-step guide to finding and fixing regression bugs, with real-world examples and concrete commands you can run today.
The Cost of Not Reproducing Bugs: Why Local Debugging Saves Hours
Skipping local reproduction leads to wasted hours, broken deploys, and frustrated teams. Here's why it's non-negotiable and how to do it right.
Debugging an Unfamiliar Codebase: A Systematic Approach
A repeatable process for debugging code you didn't write — with specific techniques, tooling choices, and a war story from a production outage at 2 AM.
5 Questions to Ask Yourself Before Filing a Bug Report
A senior engineer's pre-flight checklist for bug reports — forged in the fire of a production incident that turned a 5-minute fix into a 3-hour hunt.
Binary Search for Bugs: Cutting Down Bisection Time with git bisect run
Automating git bisect with a script turns days of manual hunting into minutes. Here's how to build a reliable bisection harness for your codebase.
Reading a Call Stack: What Each Frame Actually Tells You
A call stack shows you the path your code took to crash. But most developers only look at the top frame. Here’s how to read the whole thing — including async traces, native frames, and minified code.