How does this skill help prevent Rust panics?

The skill scans your code for unwrap() and expect() calls, suggesting safer alternatives that use Result propagation or proper error context to ensure your application fails gracefully rather than crashing.

Does it support both libraries and applications?

Yes. It follows Rust best practices by suggesting the 'thiserror' crate for library-level typed errors and the 'anyhow' crate for flexible application-level error handling.

Can this skill help me learn idiomatic Rust?

Absolutely. It doesn't just provide code; it explains the benefits of patterns like the ? operator, automatic error conversion with #[from], and why specific error types are preferred in different contexts.

What error propagation patterns does it suggest?

It focuses on the '?' operator, the use of .context() for adding metadata to errors, and mapping errors using .map_err() when converting between different error domains.

Rust Error Handling Advisor

Name: Rust Error Handling Advisor
Author: EmilLindfors

byEmilLindfors

0•

Security & Testing

Analyzes Rust code to implement idiomatic error handling using Result types, context propagation, and custom error enums.

The Rust Error Handling Advisor is a specialized skill designed to improve the reliability and maintainability of Rust applications. It proactively monitors for anti-patterns like unwrap(), expect(), or manual error matching, providing immediate suggestions for more robust alternatives. By guiding developers through the nuances of the thiserror crate for libraries and anyhow for applications, it ensures that errors are properly typed, contextualized, and propagated, reducing runtime panics and making debugging significantly easier.

Key Features

01Simplifies error propagation with idiomatic use of the ? operator

02Identifies and replaces dangerous unwrap(), expect(), and panic!() calls

03Provides templates for custom error enums using the thiserror crate

04Implements rich error context and flexibility via the anyhow crate

050 GitHub stars

06Generates comprehensive unit tests for validating error states and variants

Use Cases

01Hardening production code by replacing panics with recoverable Result types

02Refactoring verbose match statements into concise error propagation patterns

03Designing structured, type-safe error systems for Rust libraries and APIs

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add emillindfors/claude-marketplace error-handler-advisor

For use in Claude.ai and ChatGPT

Download Skill