Popular presets

Each preset opens a shareable spell. The options live in the URL, so you can send the link without creating an account.

AGENTS.md · Next.js
Strict Next.js
AGENTS.md for an App Router codebase that should not wander.
Cursor security rule · Next.js + Supabase
Supabase, locked down
Cursor security rule for Next.js + Supabase. Service role stays on the server.
Copilot instructions · Laravel
Laravel Copilot
Copilot instructions with Artisan, Form Requests, and policies.
Cursor testing rule · Rust
Test-first Rust
A Cursor testing rule that asks for a failing test before the change.
system prompt · Phaser
Chill Phaser
A short system prompt for a Phaser scene. Ship the slice, do not allocate in update.
Cline rules · Electron
Electron bridge
Cline rules that keep nodeIntegration off and validate IPC.
GEMINI.md · Python ML
Python ML, no leakage
GEMINI.md for a data project. Fit transforms on the training split only.
AGENTS.md · Roblox
Roblox server authority
AGENTS.md that tells the agent the server owns currency and remotes must be validated.