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Agentdex

Free download

Ship your AI-coded app without the 2 a.m. surprises.

The Vibe Coder Starter Kit: drop-in rules for Cursor, Claude Code and Codex, a 10-prompt sequence from idea to deploy, and the pre-launch checklist that stops leaked API keys. Free when you join Model Pulse, our daily email for AI builders.

Get the kit, free

Enter your email. You get the download link right here and in your inbox, plus Model Pulse daily.

What's inside

Cursor project rules

.cursor/rules/project.mdc plus a legacy .cursorrules: plan-first workflow, small diffs, security rules, a clear "done" definition.

CLAUDE.md

Project memory for Claude Code with the same core rules, plus plan mode, test runs and no-destructive-commands guardrails.

AGENTS.md

For Codex, Aider, Cline, Windsurf, Jules and any agent that reads AGENTS.md. Setup, PR and "stop if blocked" rules.

10 prompts: idea → deploy

Sharpen the idea, spec, stack, scaffold, core feature, auth, milestones, senior review, polish, deploy. Paste in order.

Vibe-coding checklist

35+ checks across secrets and env vars, auth and data, input and abuse, dependencies, testing and deploy.

Tool picker

One page: which AI coding tool for which job, with links to our notes on Cursor, Claude Code, Codex and more.

Who it's for

  • You build with AI agents and want them to stop rewriting half the repo for a one-line fix
  • You switch between Cursor, Claude Code and Codex and want one set of rules that works in all of them
  • You're about to put an AI-coded app on the internet and want to check it's not leaking keys or other people's data

FAQ

Is it really free?

Yes. You join Model Pulse, a short daily email on AI model drops and tools. Unsubscribe any time and keep the kit.

What format is it?

A .zip of plain Markdown files with a README. Copy the rule files into your repo root and edit the Project section.

Which tools does it work with?

Cursor, Claude Code, OpenAI Codex, and agents that read AGENTS.md such as Aider, Cline and Windsurf. The prompts work in any capable coding agent.

Can I use it in commercial projects?

Yes. Use and modify the files in your own projects. Please don't resell the kit itself.

I didn't get the email.

Check spam or promotions. The download link also appears on this page right after you sign up. Still stuck? Write to hello@agentdex.app.

Want to go further?

The free kit is the starting point. Our paid packs go deeper:

Prompt pack

Vibe Coder Starter Prompt Pack

$9

See the pack

Rules pack

Cursor / Claude Code Agent Rules Pack

$15

See the pack

Game dev

Indie Game Dev AI Pack

$19

See the pack