writing-rust SKILL.md skillA

writing-rust from alexei-led/cc-thingz is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add alexei-led/cc-thingz/writing-rust@git:20260928.296db92

Pins git:20260928.296db92 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
alexei-led/cc-thingz
Path
src/skills/writing-rust/SKILL.md
Versions recorded
6
Latest version
git:20260928.296db92, committed Sep 28, 2026
First version recorded
Jun 27, 2026
Size
2,838 bytes
Repository stars
38
License
MIT

Idiomatic Rust development. Use when writing Rust code, Cargo crates/workspaces,.

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 Development

Covers crates, workspaces, and Rust CLIs. Check `Cargo.toml`, `rust-toolchain.toml`, and CI before using newer syntax or APIs. Project conventions win over these defaults.

## Version and Features

- Stay within `package.rust-version` (MSRV) and the pinned toolchain unless the task is an upgrade.
- Use Edition 2024 syntax only when the crate sets `edition = "2024"`.
- Keep features additive. Do not assume `--all-features` compiles when the crate documents mutually exclusive features.

## Defaults

- Stdlib and existing crates first. `thiserror` for library error enums and `anyhow` for application glue only when the crate already uses them or boilerplate justifies it.
- Newtypes for IDs, tokens, and validated values; enums for states. Private first, then `pub(crate)`, then `pub`.
- Implement `From`, `TryFrom`, `AsRef`, `FromStr`, and `Display` before ad hoc conversion methods.
- Parsing and validation return `Result` with a typed error. `unwrap`/`expect` in production code only with a named local invariant.
- When the borrow checker objects, fix the data flow before reaching for `clone()`. Use lifetimes in APIs only for real zero-copy needs.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add alexei-led/cc-thingz/writing-rust@sha256:5cf675edd78b0f77

The line at the top of this page pins the label git:20260928.296db92, 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_eqdystogc66p53nf.svg)](https://markdownregistry.com/a/art_eqdystogc66p53nf)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 6 versions of this file, between Jun 27, 2026 and Sep 28, 2026, about one every 19 days. Its first recorded version is graded B and its latest A.

versioncommittedcommitsizeaudit
git:20260928.296db92 latest2026-09-28 296db92 2,838 BA view · diff
git:20260928.3135f262026-09-28 3135f26 2,433 BA view · diff
git:20260716.29b4d222026-07-16 29b4d22 3,508 BA view · diff
git:20260702.33bfc182026-07-02 33bfc18 3,513 BB view · diff
git:20260629.26ad5b32026-06-29 26ad5b3 3,363 BB view · diff
git:20260627.a4cca8d2026-06-27 a4cca8d 2,766 BB view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (2838 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

GitHub

alexei-led/cc-thingz · 38 stars · license MIT · pushed 2026-10-25 · branch master

API

GET https://markdownregistry.com/api/v1/artifacts/art_eqdystogc66p53nf
GET https://markdownregistry.com/api/v1/resolve?ref=alexei-led/cc-thingz/writing-rust
GET https://markdownregistry.com/api/v1/blob/5cf675edd78b0f77f85c62e880a2109764e88af915102e08fd3e59649dd7b2cf

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.

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