Rust Error Handling SKILL.md skillA
Rust Error Handling from dicklesworthstone/meta_skill is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add dicklesworthstone/meta_skill/Rust Error Handling@git:20260116.65e6a9ePins git:20260116.65e6a9e in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- dicklesworthstone/meta_skill
- Path
skills/examples/rust-error-handling/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260116.65e6a9e, committed Jan 16, 2026
- Size
- 1,730 bytes
- Repository stars
- 210
- License
- a license file GitHub does not identify
Rust-specific error handling patterns, building on the base error handling skill. Demonstrates the 'extends' composition feature.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Rust Error Handling
Rust-specific error handling patterns that extend the base error handling skill.
## Rules
- Use `thiserror` for defining library error types
- Use `anyhow` for application-level error handling
- Implement `std::error::Error` trait for custom error types
- Use the `?` operator for ergonomic error propagation
- Prefer `Result<T, E>` over panicking for recoverable errors
- Use `unwrap()` only in tests or when failure is impossible
## Examples
```rust
// Define library errors with thiserror
use thiserror::Error;
#[derive(Error, Debug)]
pub enum ConfigError {
#[error("failed to read config file: {0}")]
Io(#[from] std::io::Error),
#[error("invalid config format: {0}")]
Parse(#[from] toml::de::Error),
#[error("missing required field: {field}")]
MissingField { field: String },
}
```
```rust
// Application-level error handling with anyhow
use anyhow::{Context, Result};
fn load_config(path: &str) -> Result<Config> {
let content = std::fs::read_to_string(path)
.with_context(|| format!("failed to read config from {}", path))?;
let config: Config = toml::from_str(&content)
.context("failed to parse config TOML")?;
…Read the whole file at its exact version.
How to install
mdr add dicklesworthstone/meta_skill/Rust Error Handling@sha256:f732c12fa0a86388The line at the top of this page pins the label git:20260116.65e6a9e, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_w33tpa25fgk2cdso)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Jan 16, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (1730 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
dicklesworthstone/meta_skill · 210 stars · license a license file GitHub does not identify · pushed 2026-11-02 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_w33tpa25fgk2cdso GET https://markdownregistry.com/api/v1/resolve?ref=dicklesworthstone/meta_skill/Rust Error Handling GET https://markdownregistry.com/api/v1/blob/f732c12fa0a863882249304c3c6afee0b10b8715218de5bb5f7dbf57b6e49aca
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.