Does it support conditional compilation in error enums?

Yes, it includes advanced patterns for using #[cfg] attributes within your error enums to handle feature-gated dependencies like database or networking crates.

What is the difference between #[from] and #[source] in this skill?

It guides you to use #[from] for automatic conversion via the From trait (using the ? operator), while suggesting #[source] when you need to provide custom context or manual construction.

How does this skill detect when to activate?

The skill activates automatically when it detects custom error enum definitions, manual Display/Error trait implementations, or existing thiserror usage in your Rust files.

Can this skill help me with layered architectures?

Yes, it provides patterns for creating domain, infrastructure, and application-level errors that wrap and propagate correctly through your software layers.

Rust Thiserror Expert

Name: Rust Thiserror Expert
Author: EmilLindfors

byEmilLindfors

Developer Tools

Simplifies Rust error handling by generating idiomatic custom error types using the thiserror crate.

About

The Thiserror Expert skill transforms how you handle errors in Rust projects by providing domain-specific guidance on the thiserror crate. It proactively identifies manual error implementations and suggests cleaner, macro-based alternatives that automatically implement Display and Error traits. Whether you are building a library or a complex application, this skill helps you implement proper error chaining with #[source], automatic conversions with #[from], and clear, actionable error messages to improve developer experience and debugging.

Key Features

Detects vague error messages and suggests clear, context-aware alternatives
0 GitHub stars
Supports advanced patterns like transparent error forwarding and generic error types
Converts manual Display and Error trait implementations to concise thiserror macros
Guides implementation of error chaining using #[source] and #[from] attributes
Provides templates for layered error architectures and Result type aliases

Use Cases

Refactoring boilerplate-heavy manual error enums into concise, maintainable definitions
Structuring robust error handling layers in complex Rust microservices and CLI tools
Adding context-rich error messages to library crates to help end-users debug issues

About

Key Features

Detects vague error messages and suggests clear, context-aware alternatives
0 GitHub stars
Supports advanced patterns like transparent error forwarding and generic error types
Converts manual Display and Error trait implementations to concise thiserror macros
Guides implementation of error chaining using #[source] and #[from] attributes
Provides templates for layered error architectures and Result type aliases

Use Cases

Refactoring boilerplate-heavy manual error enums into concise, maintainable definitions
Structuring robust error handling layers in complex Rust microservices and CLI tools
Adding context-rich error messages to library crates to help end-users debug issues