Code Quality
What Is Legacy Code? A Clear Definition for Developers
What is legacy code? A clear definition for developers, why Michael Feathers defines it as code without tests, and how to tell debt from legacy.
Jonny Rowse 7 min read Code Quality
Write cleaner code with better testing, refactoring, and review practices.
Jonny Rowse 7 min read Code Quality
Breaking Dependencies in Legacy Code: Sprout, Wrap, and Seam Patterns
Break dependencies in legacy code safely. A practical guide to sprout method, wrap method, and seams from Working Effectively with Legacy Code.
David White 12 min read Code Quality
Refactoring Legacy Code Without Breaking It
Refactoring legacy code safely: a practical playbook with characterisation tests, seams, strangler fig, and small changes that keep production up.
Gareth Clubb 11 min read Code Quality
Why Your Tests Are Flaky and How to Fix Them
A practical guide to identifying and fixing flaky tests. Root causes from timing and async bugs to test pollution, with strategies to stabilise CI.
David White 7 min read Code Quality
How to Audit a Legacy Codebase: A Step by Step Guide
A practical guide to legacy code analysis: how to audit an unfamiliar codebase, identify risks, map dependencies, and plan a safe path forward.
Zubair Hasan 12 min read Code Quality
The Developer's Guide to Secure Coding Practices
Learn secure coding practices every developer should know, from input validation and dependency auditing to secrets management and threat modelling.
Jonny Rowse 10 min read Code Quality
Technical Debt Spring Clean: A Developer's Q2 Checklist
A practical Q2 checklist for tackling technical debt. Audit dependencies, clean dead code, fix linter warnings, and prioritise what to refactor first.
Jonny Rowse 8 min read Code Quality
Debugging Strategies That Actually Save You Time
Practical debugging strategies that help you find and fix bugs faster, from systematic approaches to tool mastery.
David White 11 min read Code Quality
Effective Error Handling Patterns for Cleaner Code
Practical error handling patterns that make your code more reliable, debuggable, and easier to maintain across any language.
Jonny Rowse 8 min read