Prompt Engineering
& LLM Guides
Reduce Claude Code Token Usage: 9 Ways
How to reduce Claude Code token usage: where tokens go, how to track them, and nine practical ways to use fewer.
Claude Context Window Size by Model (2026)
Claude context window size for every current model across the API, app and Claude Code, and what happens when it fills.
AI Prompt to Fix a Flaky CI Test
A practical AI prompt for diagnosing a flaky CI test fast, so you find the real race condition causing it instead of adding another retry or timeout.
Speed Up fWith lint-staged
Why pre-commit hooks get painfully slow on large repos, and the lint-staged fix that scopes every lint and format check to only the files you actually staged.
AI Error Summarization for Node.js APIs
How to add AI error summarization to a Node.js API the right way: background queue, Slack alerts, and no blocked requests when OpenAI is slow.
console.log vs debugger in Node.js
console.log vs debugger in Node.js: when print debugging is fine, when breakpoints actually save you time, and the workflow I use on client projects.
RAG vs Fine-Tuning: A Developer Guide
RAG vs fine-tuning for your LLM app: when retrieval actually wins, when training a model wins instead, and why most real production systems end up using both.
Connection Pool Exhaustion: The Real Fix
Database connection pool exhaustion causes hanging requests and timeouts under load. Here is what actually causes it and how to fix your pool setup for good.
Debug a Node.js Memory Leak with AI
A practical AI prompt that uses a real heap snapshot retainer path to actually find a Node.js memory leak instead of just confirming one exists.
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