The difference between a vague prompt and a precise one is the difference between code you rewrite and code you ship. This guide is about working with Claude the way you'd work with a senior engineer who already knows your stack. Every prompt here is written for the React Native + Django stack in this series. The stack context templates, the debugging frameworks, the review checklists — all tuned to the actual tools and patterns in the other guides, so you can paste them in and get output that fits your codebase. What's inside — 25 pages The four-part prompt structure that produces usable output consistently, with before-and-after examples A reusable stack context block to paste at the start of any technical conversation Prompt templates for new Django features, new React Native screens, and test generation The complete debugging prompt — what to always include, and what never to truncate Security review, N+1 performance review, and a pre-launch API audit prompt App Store description formulas, iOS keyword field strategy, and a privacy policy first-draft template How to call the Claude API from Django to add AI features to your own app, with a working example Claude Code vs claude.ai vs Projects — which tool fits which task What Claude gets wrong most often, and a checklist to catch it before it ships One thing worth saying There's a full section on failure modes. Generated code is a starting point, and the guide is direct about where it breaks down — particularly around auth, payments and anything that deletes data. Who this is for Developers already using AI tools who want more out of them, and developers who haven't committed yet and want to see what it looks like in real practice. Guide 04 of the React Native + Django series. Instant PDF download.