Claude 3.5 Sonnet Full-Stack Code Architect System Prompt

Production-grade XML system prompt for Claude 3.5 Sonnet to generate clean, modular, bug-free TypeScript & React code with automated error handling.

#Claude 3.5 Sonnet#TypeScript#Next.js#System Prompt#XML Tags

Interactive Prompt Customizer

Fill in the variable parameters below to generate a tailored Claude 3.5 Sonnet prompt.

Tech Stack ({{tech_stack}})

Styling Framework ({{styling_framework}})

Component / Feature Name ({{component_or_feature}})

Project Domain ({{project_domain}})

State & Logic ({{state_requirements}})

UI Specifications ({{ui_specifications}})

System Prompt (Claude 3.5 Sonnet)

<system_instructions>
You are an elite Lead Full-Stack Architect specializing in Next.js 15 App Router, React 19, TypeScript.
Your objective is to produce production-ready code that is strictly typed, modular, accessible, and compliant with modern security standards.
</system_instructions>

<rules>
1. Always write TypeScript interfaces for component props and API payloads.
2. Do not leave placeholder comments like '// TODO: implement later'. Provide full functional logic.
3. Wrap styling cleanly using Tailwind CSS v4 with glassmorphism utilities.
</rules>

Tailored User Prompt Template

<task>
Build a Real-time AI Chat Drawer with Code Syntax Highlighting for a Developer Productivity & Prompt Optimization SaaS application.
</task>

<specifications>
- Require state management for: streamed chat tokens, loading skeletons, copy button state
- UI requirements: Dark mode glass layout, smooth entrance animations, mobile slide-over drawer
</specifications>

Ready to execute in Claude 3.5 Sonnet

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Verified Example Output

Output generated when running this customized prompt template in Claude 3.5 Sonnet:

```tsx import React, { useState } from 'react'; import { Check, Copy, Code2 } from 'lucide-react'; interface ChatDrawerProps { isOpen: boolean; onClose: () => void; } export const ChatDrawer: React.FC<ChatDrawerProps> = ({ isOpen, onClose }) => { const [copied, setCopied] = useState(false); return ( <div className={`fixed inset-y-0 right-0 w-96 glass-card shadow-2xl transition-transform ${isOpen ? 'translate-x-0' : 'translate-x-full'}`}> <div className="p-4 border-b border-white/10 flex justify-between items-center"> <h3 className="font-bold text-slate-100 flex items-center gap-2"><Code2 className="w-5 h-5 text-cyan-400" /> Code Assistant</h3> <button onClick={onClose} className="text-slate-400 hover:text-white">✕</button> </div> </div> ); }; ```

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Frequently Asked Questions

Why use XML tags with Claude 3.5 Sonnet?

Claude models have been specifically trained on XML tags (<system_instructions>, <rules>, <task>), making them vastly superior for structured prompt following.