The AI Coding Stack 2026

Every .cursorrules, every CLAUDE.md, every prompt worth stealing. One bundle. One-time payment. Quarterly updates for a year.

What's inside

1. 30 battle-tested .cursorrules files

One per stack. Ready to drop into your project root, restart Cursor, ship. Curated from real projects, tested for 2+ weeks each.

• Frontend: Next.js, React+Vite, Vue, Svelte, Astro, SolidJS, Remix, SvelteKit
• Backend: Node/Express, Node/Fastify, Python/FastAPI, Django, Rails, Laravel, Spring Boot
• Systems: Rust/Actix, Rust/Axum, Go/Gin, Go/Fiber, Elixir/Phoenix, Zig
• Mobile: SwiftUI, Jetpack Compose, React Native, Flutter
• Infra: Cloudflare Workers, Terraform, Kubernetes YAML, Dockerfiles
• Roles: Solo dev, small team, enterprise/SOC2

2. 30 matching CLAUDE.md templates

Same stacks, tuned for Claude Code's sub-agents, plan mode, and hook system. Includes example command blocks and MCP recommendations per stack.

3. 100+ curated prompts organized by task

Code review (severity-tiered, security-focused, perf-focused), refactoring (extract, rename, callback→async), debugging (systematic bug hunt, flaky test diagnosis, incident post-mortem), docs (README, API reference), testing (unit test gen, repro tests), SQL (query optimization, safe migrations), workflow (plan refactors, explain unfamiliar code).

Every prompt is copy-paste ready. Tested in Cursor, Claude Code, Copilot, Windsurf.

4. Live tool comparison spreadsheet

Every AI coding tool tracked: pricing, features, model support, strengths, weaknesses. Auto-updated weekly for a full year after purchase. Google Sheets link (view + copy to your own).

5. Quarterly updates (included, one year)

New rules for stacks that emerge. New prompts for problems that come up. New tools added. You get every update by email — no extra charge.

6. Priority Discord (bonus, launching with 100+ buyers)

Slack-style channels: request a rules file for your stack, share prompts that worked, get help debugging AI IDE workflows.

What it's not

• Not a course. No videos, no chapters, no "modules to complete." It's a reference pack.
• Not for beginners learning to code. Assumes you already ship code, want AI tools to work better.
• Not sold via subscription. Buy once. Yours forever. No recurring charges.

Who this is for

• Solo devs and small teams using Cursor, Claude Code, Windsurf, or Copilot
• Engineers switching between AI IDEs and tired of re-writing rules
• Tech leads who want their whole team on the same rules baseline
• Anyone who's ever thought "there has to be a better rules file for this"

Why buy vs. use the free tools?

Our free .cursorrules generator and CLAUDE.md generator get you a decent starting file for your stack. This pack gives you 30 stacks battle-tested by real usage, plus the prompt library, plus the live comparison sheet, plus quarterly updates. It's the "someone else did the research" package.

FAQ

When does it launch?

This month. Waitlist gets 24h early access + locked-in €29 forever.

How is it delivered?

After purchase you get an email with the download (PDF + zip of raw files) and access to the Google Sheet + Notion. Everything within 60 seconds of buying.

Do I have to use Cursor or Claude Code?

The rules files are for Cursor. The CLAUDE.md files are for Claude Code. The prompts work in any AI chat (Cursor, Claude Code, Copilot, Windsurf, ChatGPT, Claude.ai). You get value from any of these tools.

What if the AI IDE ecosystem changes?

Quarterly updates for a full year cover new tools, new features, model changes. Bought once, updated four times minimum.

Refund policy?

Full refund within 30 days, no questions. If you find better rules files elsewhere, keep them, get your money back.

Can my team use it?

Team license (up to 10 devs) is €79. Contact hello@devtoolsniff.com after purchase to upgrade.