System Prompts Playground

A curated collection of 30+ AI tools' system prompts, presented as a searchable, SEO-friendly web application built with Next.js 15 and React 19.

Live Demo: ai.caterpi11ar.com

Overview

This project aggregates leaked and disclosed system prompts from major AI development tools — including Claude Code, Cursor, Devin, Windsurf, Replit, v0, and more — into a markdown-driven static site optimized for search engines.

Featured AI Tools

Category	Tools
Code Assistants	Claude Code, Cursor, Windsurf, Augment Code, CodeBuddy, VSCode Agent, Z.ai Code, Trae
AI Agents	Devin AI, Manus Agent, Junie, Traycer AI, Kiro, Amp
App Builders	v0, Lovable, Replit, Same.dev, Leap.new, Bolt
Search & Chat	Perplexity, NotionAI, Comet Assistant, Cluely
Platform Tools	Google Gemini, Xcode AI, Warp.dev, Qoder, Poke
Open Source	Cline, Codex CLI, Gemini CLI, Lumo, RooCode

Tech Stack

Framework: Next.js 15 (App Router)
UI: React 19 + Tailwind CSS 4 + shadcn/ui
Content: Markdown-driven from docs/ directory
Deployment: Vercel with static generation (SSG)

Getting Started

# Clone the repo
git clone https://github.com/caterpi11ar/system-prompts-playground.git
cd system-prompts-playground

# Install dependencies
pnpm install

# Run development server
pnpm dev

# Build for production
pnpm build

Open http://localhost:3000 to view the site.

Content Structure

docs/
├── Anthropic/
│   ├── Claude Code/          # Prompt.txt, Tools.json
│   └── Claude for Chrome/    # Prompt.txt
├── Cursor Prompts/           # Chat, Agent, Background Agent prompts
├── Devin AI/                 # System Prompt.txt
├── Google/
│   ├── Antigravity/
│   └── Gemini/
├── Open Source prompts/
│   ├── Bolt/
│   ├── Cline/
│   ├── Codex CLI/
│   └── ...
└── ... (30+ tools)

Each tool directory contains:

System Prompts (.txt) — the core instructions given to AI models
Tool Definitions (.json) — available tools/functions the AI can call
Configuration (.yaml/.md) — additional settings and documentation

Key Features

Full-text search across all system prompts
Category-based navigation and filtering
Syntax-highlighted prompt display
SEO-optimized static pages for each AI tool
Responsive design with dark mode support
Fast page loads via static site generation

Adding a New AI Tool

Create a directory under docs/ with prompt files (.txt, .json, .yaml, .yml)
Add its slug to CATEGORY_MAP, COLOR_MAP, and ICON_MAP in lib/tools.ts
Place its logo in public/logos/

Data Source & Acknowledgments

The system prompt data in docs/ is sourced from system-prompts-and-models-of-ai-tools by @x1xhlol. Huge thanks for the incredible work of collecting and maintaining these AI system prompts!

License

MIT