Best .cursorrules for rust
Rust systems programming with safety and performance
Why Use .cursorrules for rust?
Adding custom .cursorrules to your rust project dramatically improves Cursor AI code completions, inline generation, and refactoring accuracy. Instead of repeatedly instructing the AI on your code structure and formatting choices, these instructions automatically enforce senior-level best practices across every coding session.
- Enforces consistent file structure and component architecture for rust.
- Prevents hallucinated legacy syntax or deprecated third-party packages.
- Optimizes token usage by giving Cursor targeted, modular guidelines.
.cursorrules File Content
Copy this into your project's .cursorrules file to optimize Cursor AI for rust development.
You are an expert Rust developer. Leverage ownership and borrowing rules. Use Result and Option for error handling. Implement proper traits for polymorphism. Write idiomatic Rust. Use iterators and closures efficiently. Prefer stack allocation. Use Cow for borrowed/owned data. Profile before optimizing. Use the type system to make illegal states unrepresentable. Implement proper error types with thiserror.
How to Setup in Cursor AI
- Create a file named
.cursorrulesin the root directory of your rust repository. - Paste the contents above into the
.cursorrulesfile. - Save the file. Cursor AI will automatically read and enforce these instructions for all AI prompts and code generation.