When should I use Result over panic! in Rust?

Use Result for recoverable errors like business rule violations or transient network issues. Use panic! or unreachable! only for impossible states or contract violations that cannot be handled.

Can this skill help reduce application crashes?

By promoting the removal of unwrap() and expect() in favor of explicit error handling, this skill significantly increases application stability.

Does this skill help with custom error types?

Yes, it provides guidance on designing enum-based error types rather than using simple strings, allowing for better pattern matching and error management.

How does this skill handle error propagation?

It implements patterns for converting low-level errors into meaningful domain-specific errors at API or use-case boundaries while preserving the original cause.

Is this skill suitable for beginners?

Yes, it serves as an excellent educational tool for learning the 'Rust way' of handling errors through guided implementation and code reviews.

Rust Error Handling Expert

Name: Rust Error Handling Expert
Author: j5ik2o

byj5ik2o

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Developer Tools

Architects resilient Rust applications by implementing idiomatic error handling patterns based on recoverability.

About

This skill equips Claude with the specific principles and implementation guidelines required to handle errors professionally in Rust. It focuses on the core distinction between recoverable errors using Result<T, E> and irrecoverable situations using panic!. By utilizing this skill, developers can ensure their Rust projects follow best practices such as using enums for error types, maintaining error cause chains via the source trait, and appropriately converting errors at architectural boundaries. It promotes high-quality code by discouraging the unsafe use of unwrap() and expect() in production environments.

Key Features

Enforces best practices for minimizing unwrap and expect usage
Preserves error context using the source trait for better debugging
Implements error conversion and wrapping across system layers
Differentiates between recoverable and irrecoverable error states
Designs structured enum-based error types for type-safe handling
3 GitHub stars

Use Cases

Establishing error propagation strategies in multi-layered architectures
Refactoring existing Rust code to use idiomatic error handling patterns
Designing custom error types for domain-specific business logic

About

Key Features

Enforces best practices for minimizing unwrap and expect usage
Preserves error context using the source trait for better debugging
Implements error conversion and wrapping across system layers
Differentiates between recoverable and irrecoverable error states
Designs structured enum-based error types for type-safe handling
3 GitHub stars

Use Cases

Establishing error propagation strategies in multi-layered architectures
Refactoring existing Rust code to use idiomatic error handling patterns
Designing custom error types for domain-specific business logic