Implement typed error handling in Rust with thiserror and anyhow.
npx skills add https://github.com/cecon123/tg-remote-bot --skill rust-error-cecon123
Please help me install this Agent Skill. Skill: rust-error Source: https://github.com/cecon123/tg-remote-bot/tree/main/.agents/skills/rust-error Command: npx skills add https://github.com/cecon123/tg-remote-bot --skill rust-error-cecon123
Rust projects often struggle with stable error reporting, leaking internals, and noisy APIs. This skill codifies practical strategies to model failures with Result, Option, and typed errors (thiserror) while preserving actionable diagnostics across library and application boundaries.
Describe a robust error handling strategy in Rust using Result, Option, and typed errors with thiserror/anyhow for production libraries.
High-intent search queries and answers about installing and using this skill.
Rust error handling uses Result for recoverable failures and Option for absence scenarios, allowing you to propagate errors explicitly with actionable context rather than relying on exceptions.
Use thiserror in Rust libraries to define precise typed errors for clean API boundaries, and use anyhow in application code for flexible context chaining and ergonomic error propagation across IO, parsing, and network calls.
The best way to propagate Rust errors across boundaries is to map typed library errors into application-level contexts using anyhow, ensuring failure modes remain discoverable and diagnostics stay actionable for operators.
Testing Rust error paths involves asserting specific Result and Option variants, verifying thiserror typed errors and anyhow context chaining to ensure precise failure coverage for IO, parsing, and networking operations.
Rust libraries leak internal details when using anyhow at API boundaries instead of thiserror typed errors, which encapsulate failure modes precisely and prevent exposing implementation specifics to downstream consumers.
You need thiserror and anyhow to manage recoverable Result failures with typed contexts, while panics should be reserved for unrecoverable states, ensuring robust Rust error handling without leaking internals.
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