Cursor rule

1---
2description: Rust Error Handling
3globs: "**/*.rs"
4alwaysApply: false
5---
6# Rust Error Handling Practices
7 
8Detailed error handling guidelines are maintained in:
9 
10- `.claude/skills/handling-rust-errors/SKILL.md` - Main guidelines
11- `.claude/skills/handling-rust-errors/resources/` - Detailed patterns
12 
13## Quick Reference
14 
15Use error-stack (`Report<MyError>`) instead of anyhow or eyre:
16 
17```rust
18use error_stack::{Report, ResultExt as _};
19 
20// Define errors with derive_more
21#[derive(Debug, derive_more::Display)]
22pub enum MyError {
23    #[display("Resource `{id}` not found")]
24    NotFound { id: String },
25}
26 
27impl core::error::Error for MyError {}
28 
29// Propagate with context
30some_result
31    .change_context(MyError::Failed)
32    .attach("additional context")?;
33```
34