Cursor is great until it isn't. It generates Next.js 14 patterns on a Next.js 15 codebase. React 18 idioms when you're on React 19. Tailwind v3 config files for a v4 project. It mixes pages/ and app/. It reaches for forwardRef in 2026. It guesses your stack's conventions and you pay the cost in code review.
The Cursor Rules Mega-Pack fixes that. 100+ production-grade rules across 20 modern stacks, each one pinning Cursor to current, version-aware conventions and explicitly listing the anti-patterns it reaches for if you don't.
.cursorrules single-file format AND the modern .cursor/rules/*.mdc scoped format with proper frontmatter. Use whichever your team prefers — or both.Engineers who already pay for Cursor and want Cursor to actually act like a senior on their team — not a generic assistant guessing at conventions. Especially valuable if you ship across multiple stacks (typical for agencies, consultancies, and full-stack solo founders).
An hour of code review on a bad Cursor diff costs more than this pack. Use it on one project and it's paid for. Update your team's AI assistant with the rules they should already have known.
Yes — the pack ships BOTH the legacy .cursorrules single-file format AND the modern .cursor/rules/*.mdc scoped format. Whichever convention your Cursor setup uses, you're covered. The .mdc files include proper frontmatter (description, globs, alwaysApply) so they compose cleanly with your existing rules.
Yes. The commercial license covers unlimited use in your personal projects, internal company projects, and unlimited client work. The one thing you can't do is resell the pack itself — but you absolutely can (and should) commit the rule files into the repos you build.
20 stacks: Next.js 15, React 19, TypeScript, Tailwind v4, shadcn/ui, Vue 3, Svelte 5 / SvelteKit 2, Python 3.12+, FastAPI, Django 5, Go, Rust, Node + Express, PHP vanilla, Laravel, Prisma 6, Drizzle ORM, Supabase, PostgreSQL 16+, and React Native + Expo. Each one has its own rule set tuned to that stack's current idioms and Cursor failure modes.
Two options. Legacy: copy the .cursorrules file into your project root. Modern: create a .cursor/rules/ directory and copy the .mdc file in. Either way, restart Cursor and the rules are live on the next prompt. The QUICKSTART.md walks through both, including how to stack multiple rules for projects that span several technologies (e.g. Next.js + Tailwind + Drizzle + Supabase).
Cursor includes them in every prompt context (for .cursorrules) or whenever the globs match the file you're editing (for .mdc with alwaysApply=false). They're as binding as anything in a prompt — substantially more reliable than ad-hoc 'remember our conventions' chat messages. You can verify by asking Cursor what conventions it follows for the project; it'll summarise the active rules back to you.
Yes. When Cursor's conventions shift, or a stack lands a major version that changes idioms (e.g. React 19, Tailwind v4, Next.js 15 caching defaults), we update the affected rules and reissue. Re-download from your account any time.
Email hello@buycoded.com with the failure mode. If it's a real pattern, we update the pack and reissue — and you get a fixed version on your next download. We also offer a 14-day no-questions refund if the pack doesn't deliver.
