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PromptingBeginner5 min read

The Production .cursorrules & System Prompt Library

A curated set of copy-paste system rules for Cursor and Claude Code that stop bad code patterns at the generation source.

Configuring a .cursorrules file in the root of your project forces your AI agent to follow team coding standards automatically.

Standard Production .cursorrules Template

Framework: Next.js App Router (React 19, TypeScript strict mode)
Styling: Vanilla CSS / Tailwind with explicit utility classes
State Management: Server components first; minimal React client state

Code Quality Rules

1.Never generate generic variable names like data, temp, or res.
2.Always write explicit TypeScript interfaces for API contracts.
3.Handle errors explicitly in server routes—never swallow errors silently.
4.Do not add redundant comments explaining basic JavaScript syntax.

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