AI Code Agent StandardsCursor & Claude Code40% Token SavingsZero Hallucination

.cursorrules & AI Coding Agent Rule Generator

Instantly generate project-specific architecture rules and system prompts for Cursor IDE (.cursorrules), Claude Code (CLAUDE.md) and Windsurf (.windsurfrules).

.cursorrules Format

Root-level rule file for Cursor AI

CLAUDE.md Support

Anthropic Claude Code CLI

Architecture Standards

Next.js 15, FastAPI, Go, Tailwind

No Unnecessary Code

Diff-focused, complete output

2026 AI Agentic Coding Standards

AI Coding Agent Rule Generator

Generate solid architecture rules for Cursor (.cursorrules), Claude Code (CLAUDE.md) and Windsurf (.windsurfrules) in seconds.

Popular Ready-Made Templates

1. Target Tool & Output File

2. Framework & Language

3. Architecture & Quality Standards

Strict TypeScript & Zero Any

Strict type safety, generic structures and a no-any rule.

Tailwind CSS v4 & Modern UI

CSS-first token structure, semantic responsive utility classes.

Clean Code & SOLID

Single responsibility principle, loose coupling and modular layers.

TDD & Unit / E2E Test

A test-writing discipline built around Vitest/Jest and Playwright.

Accessibility (A11y & ARIA)

Screen reader compatibility, keyboard navigation and semantic HTML.

Edge Runtime & Performance

Lightweight dependencies, tree-shaking and sub-millisecond responses.

Cybersecurity & OWASP

Input validation (Zod/Pydantic), sanitized SQL and XSS protection.

Error Handling & Telemetry

Structured logs, graceful degradation and custom error types.

4. Extra Rules for Your Project (Optional)

.cursorrules

# .cursorrules - Next.js 16 (App Router) Project Rules
# Generated by ismailhakkieren.com AI Tools

## 🧠 Persona & Role
You are a Senior Staff Software Engineer and Architecture Expert specializing in **Next.js 16 (App Router)** (TypeScript).
Your code must be clean, maintainable, secure, and production-ready. Always explain complex architectural decisions briefly before presenting code.

## ⚡ Core Tech Stack & Guidelines
- Primary Language: **TypeScript**
- Framework / Platform: **Next.js 16 (App Router)**
- Write idiomatic, modern code following current industry best practices (2026+).
- Prioritize simplicity and readability over clever one-liners.
- Keep components and functions focused on a single responsibility (SRP).

### Next.js & React Server Components Rules
- Default to React Server Components (RSC). Add `'use client'` directive ONLY when React state, effects, or browser event listeners are strictly required.
- Co-locate components, types, and server actions close to their feature directories.
- Use Server Actions for data mutations with progressive enhancement and Zod validation.
- Implement proper Suspense boundaries and `loading.tsx` / `error.tsx` states for async routes.
- Avoid unnecessary client-side `useEffect` fetch loops; utilize server-side caching and dynamic routes properly.

## 🛠️ Architecture & Quality Standards
- **TypeScript Strictness:** Enable strict mode. NEVER use `any`; use `unknown`, generic type arguments, or type guards with discriminant unions.
- **Tailwind CSS v4:** Use CSS variable-based semantic design tokens. Avoid hardcoded hex colors or arbitrary values unless mandatory. Maintain fluid responsive classes.
- **Clean Architecture:** Decouple business logic from framework/database adapters. Write modular services and domain entities.
- **Security First:** Sanitize all user inputs, prevent injection vulnerabilities (SQL, XSS, SSRF), and never log sensitive API keys or credentials.

## 📋 Code Generation Instructions
1. **Targeted Edits:** When modifying existing files, output only the relevant diffs or concise replacement blocks. Avoid rewriting hundreds of unchanged lines.
2. **No Placeholders:** Provide complete, runnable implementations. Do not leave TODOs or comment placeholders for critical logic.
3. **Self-Documenting:** Use clean, expressive naming for variables and functions. Avoid redundant comments that merely restate what code does.

## 🎯 Project-Specific Requirements
Strictly separate Server Components and Client Components. Add "use client" only when interactivity is required.

35 lines • 2575 characters💡 Place it in your project root.

TL;DR / Direct Definition: What Are .cursorrules & CLAUDE.md?

.cursorrules and CLAUDE.md are rule configuration files that make autonomous AI coding agents such as Cursor IDE, Anthropic Claude Code and Windsurf Cascade follow your project's code architecture, TypeScript standards, directory structure and library versions. Placed in the project root, they keep the model from hallucinating, prevent unnecessary code deletions and cut token usage by up to 40%.

Pick Your Stack:Choose your framework: Next.js, React, FastAPI or Go.

Customize the Rules:Tick the TypeScript, Tailwind and TDD architecture rules.

Save to the Root:Save the generated file as .cursorrules or CLAUDE.md.

A Guide to .cursorrules and AI Coding Agent Rules

The AI Coding Agent Rule Generator is an interactive developer tool that produces project-specific rules for modern autonomous coding assistants such as Cursor IDE (.cursorrules), Anthropic Claude Code (CLAUDE.md) and Windsurf Cascade (.windsurfrules). A well-structured rule file keeps the model from hallucinating, prevents unnecessary code deletions, protects your project's architecture standards and lowers your token cost by up to 40%.

Why Add a Rule File (.cursorrules / CLAUDE.md) to Your Project?

Large Language Models (LLMs) generate code from general internet training data without knowing your project's history or your preferred architecture patterns. When you use Next.js 16, for example, the most common inefficiencies are the model bringing back old Pages Router patterns, adding unnecessary 'use client' directives or using TypeScript 'any' types. A .cursorrules or CLAUDE.md file gives project-specific guidance by imposing system-level priority rules on the model.

5 Core Sections an Effective AI Rule Set Should Have

Persona & Role: The model's seniority and area of expertise (e.g. Senior Staff Next.js & TypeScript Architect).
Tech Stack and Version Constraints: The packages and framework versions in use, and deprecated libraries to avoid.
Directory Layout and Naming Rules: File naming (kebab-case, PascalCase) and where components and tests live.
Security and Error Handling: Input validation (Zod, Pydantic), exception filters and protection of environment variables (env).
Output Format: The rule to produce only the changed blocks as diffs instead of rewriting the whole file, and to never leave code incomplete.

Blog · Topics · FAQ

Frequently Asked Questions (FAQ)

Place the .cursorrules file in the root directory of your project. When Cursor IDE opens the project, it detects the file automatically and injects it into the agent's system prompt.

CLAUDE.md is the rule standard designed for the Claude Code CLI tool developed by Anthropic. It is optimized for terminal-based agent workflows, test commands and architecture constraints.

Yes. By helping the model produce the intended architecture correctly on the first try, it cuts wrong or buggy code-fix loops and unnecessary context load by up to 40%.

AI Coding Agent Rule Generator

TL;DR / Direct Definition: What Are .cursorrules & CLAUDE.md?

A Guide to .cursorrules and AI Coding Agent Rules

Why Add a Rule File (.cursorrules / CLAUDE.md) to Your Project?

5 Core Sections an Effective AI Rule Set Should Have

More Free AI and Developer Tools

Frequently Asked Questions (FAQ)

AI Coding Agent Rule Generator