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AIMay 22, 2026
Writing AI Agent System Prompts and Rules Files: A Practical Guide
The system prompt is the most important input you give an AI agent — it defines identity, constraints, output format, and failure behaviour. This guide covers how to write system prompts and agent rules files that produce consistent, reliable behaviour.
QA & TestingMay 22, 2026
API Response Testing: Writing Effective Assertions for REST APIs
Flaky API tests almost always fail because of weak assertions. This guide covers how to write assertion strategies that catch real regressions without breaking on irrelevant changes — including type checking, schema validation, and the patterns that catch real bugs.
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Practical reads for developers
AIMay 22, 2026
Writing AI Agent System Prompts and Rules Files: A Practical Guide
The system prompt is the most important input you give an AI agent — it defines identity, constraints, output format, and failure behaviour. This guide covers how to write system prompts and agent rules files that produce consistent, reliable behaviour.
aillmsystem promptclaudegptagentprompt engineeringcursorrulesclaude.md
QA & TestingMay 22, 2026
API Response Testing: Writing Effective Assertions for REST APIs
Flaky API tests almost always fail because of weak assertions. This guide covers how to write assertion strategies that catch real regressions without breaking on irrelevant changes — including type checking, schema validation, and the patterns that catch real bugs.
api testingassertionsjestplaywrightpytestrest apiqatesting
DesignMay 22, 2026
Color Palette Generation for Web Projects: Theory and Practice
A practical guide to building color palettes that work — covering color models, harmony rules, accessibility contrast, dark mode, and the tools that generate production-ready palettes from a single starting color.
colordesignpaletteweb designaccessibilitycssui
DesignMay 22, 2026
CSS Selectors: The Complete Guide for Frontend Developers
A practical reference to every CSS selector — from basic type and class selectors to pseudo-elements, combinators, and the :has() parent selector. Includes specificity rules, performance notes, and real-world patterns.
cssselectorsfrontendweb developmentspecificitystyling
Value ConverterMay 22, 2026
Data Storage Units Explained: Bits, Bytes, Megabytes, and the SI vs IEC Confusion
1 GB can mean 1 000 000 000 bytes or 1 073 741 824 bytes depending on who is writing the spec. This guide explains why, covers all storage and transfer rate units, and helps you convert correctly between them.
data storageunitsbytesmegabytesgigabytesbitrateconversionnetworking
SecurityMay 22, 2026
How to Generate and Sign JWTs: A Practical Developer Guide
Step-by-step guide to creating JSON Web Tokens from scratch — choosing the right algorithm, signing securely, setting claims correctly, and avoiding the implementation mistakes that leak data or break authentication.
jwtauthenticationsecuritytokensapisigning
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