Free .cursorrules Generator: Custom Rules for Cursor & AI Editors

O que esta ferramenta faz

Pick your application stack, choose the coding guardrails you want to enforce, and get a ready-to-use .cursorrules or .cursor/rules/project.mdc file right away. You can copy the generated rules to your clipboard or download the file straight into your project folder, with live word, character and rough token counts so your rules stay lean and fast.

Why project rules matter for AI coding

Without clear boundaries, AI code editors often over-engineer small tasks: they rewrite working functions you did not ask them to touch, add speculative abstractions for single-use helpers, or invent dependencies that are not in your project. A short, explicit rules file fixes that by setting four engineering habits up front:

• Think before coding: state assumptions explicitly and surface tradeoffs instead of guessing silently.
• Simplicity first: write the minimum code that solves the problem, with no unrequested features or single-use abstractions.
• Surgical changes: touch only the lines needed for the request and clean up only unused imports created by your own edit.
• Goal-driven verification: define how each change will be verified and ensure existing tests pass before and after.

Como usar

1. Choose your Framework & stack (such as Next.js + TypeScript, React + Vite, FastAPI, Node.js, Django or Flutter).
2. Tick the Engineering guardrails you want to enforce in every edit.
3. Pick the Output format (.cursorrules for the project root, .cursor/rules/project.mdc with YAML frontmatter, or AGENTS.md).
4. Add any project-specific notes (such as folder conventions or test commands) in the optional box.
5. Press Copy rules or Download file, then drop the file into your project folder.