Prompt Browser

Live site → promptbrowser.cc

A fast, browsable UI over a 30-vendor archive of leaked and published system prompts and tool schemas from the AI coding agents shaping how we ship software — Cursor, v0, Claude Code, Codex CLI, Devin, Windsurf, Replit, Warp, VSCode Agent, and more.

Read the prompts, search every line, diff how a single agent's prompt evolved across versions, or compare two agents side-by-side.

Built on the prompt corpus collected by @x1xhlol. All prompts are archived verbatim from their original sources.

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Features

• Vendor index — 30+ AI coding agents, instant filter
• Full-text search — substring search across every .txt/.md prompt with highlighted snippets and deep-links
• Diff view — line-level diff between two prompt versions (perfect for Cursor Prompts/v1.0 → 2.0 → 2025-09-03)
• Side-by-side compare — raw two-pane view of two prompts in the same vendor
• Polished viewer — JSON pretty-print, copy, line-wrap toggle, line/char stats
• Dark / light mode with system preference

Stack

• Next.js 15 (App Router, React 19)
• Tailwind CSS v4
• shadcn/ui-style local primitives — no registry dependency
• diff for line-level diffing
• lucide-react icons, next-themes for theming

Repo layout

.
├── prompts/           # The archive — one directory per vendor (Cursor, v0, …)
├── prompt-explorer/   # The Next.js app
└── assets/            # Brand assets used by the original archive

The data loader walks prompts/ at build time, so nothing is duplicated and adding a new vendor is just a git mv.

Quick start

cd prompt-explorer
npm install
npm run dev

Open http://localhost:3000.

Production build

cd prompt-explorer
npm run build
npm start

Routes

Route	What it does
/	Vendor grid + name filter
/[vendor]	Vendor detail with file viewer
/[vendor]/compare?a=…&b=…&mode=diffside	Compare two prompts in a vendor
/search?q=…	Full-text search across every prompt
/api/search	JSON endpoint backing the search page

Adding a new vendor

1. Drop a directory under prompts/ named after the product.
2. Add Prompt.txt (or *Prompt.txt split by mode/model) and optionally Tools.json.
3. Versions get separate files — Agent Prompt v1.0.txt, Agent Prompt 2.0.txt, Agent Prompt 2025-09-03.txt. Never overwrite history.
4. Restart next dev — the vendor appears automatically.

Credits

The prompt corpus is collected by @x1xhlol. This repo adds the prompt-explorer app and the prompts/ reorganization.