testing-rust SKILL.md skillA
testing-rust from qte77/claude-code-plugins is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add qte77/claude-code-plugins/testing-rust@git:20260925.de695e3Pins git:20260925.de695e3 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- qte77/claude-code-plugins
- Path
plugins/rust-dev/skills/testing-rust/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260925.de695e3, committed Sep 25, 2026
- First version recorded
- Apr 4, 2026
- Size
- 3,098 bytes
- Repository stars
- 3
- License
- Apache-2.0
Writes tests following TDD (using cargo test, proptest, and insta) best practices. Use when writing unit tests, integration tests, or property-based tests in Rust.
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 Testing
**Target**: $ARGUMENTS
Writes **focused, behavior-driven tests** following project testing strategy.
## Quick Reference
**TDD methodology** (language-agnostic): See `tdd-core` plugin (`testing-tdd` skill)
**Rust-specific documentation**: `references/`
- `references/testing-strategy.md` — Rust tools (cargo test, proptest, insta, mockall)
- `references/tdd-best-practices.md` — Rust TDD examples (extends tdd-core)
## Quick Decision
**cargo test (default)**: Use `#[test]` for known cases, `#[tokio::test]` for async. Works at unit/integration levels.
**proptest (edge cases)**: Use for invariants that must hold for ALL inputs.
See `references/testing-strategy.md` for full methodology comparison.
## TDD Essentials (Quick Reference)
**Cycle**: RED (failing test / compile error) -> GREEN (minimal pass) -> REFACTOR (clean up)
**Structure**: Arrange-Act-Assert (AAA)
```rust
#[test]
fn test_order_calculator_sums_item_prices() {
// ARRANGE
let items = vec![Item { price: 10, qty: 2 }, Item { price: 5, qty: 1 }];
let calculator = OrderCalculator::new();
// ACT
let total = calculator.total(&items);
// ASSERT
assert_eq!(total, 25);
}
```
…Read the whole file at its exact version.
How to install
mdr add qte77/claude-code-plugins/testing-rust@sha256:1e7c3ff3c920eb7fThe line at the top of this page pins the label git:20260925.de695e3, 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_ftobwkibwekh4kib)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Apr 4, 2026 and Sep 25, 2026, about one every 174 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260925.de695e3 latest | 2026-09-25 | de695e3 | 3,098 B | A | view · diff |
| git:20260404.79665f5 | 2026-04-04 | 79665f5 | 3,010 B | A | view |
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 (3098 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
qte77/claude-code-plugins · 3 stars · license Apache-2.0 · pushed 2026-10-19 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_ftobwkibwekh4kib GET https://markdownregistry.com/api/v1/resolve?ref=qte77/claude-code-plugins/testing-rust GET https://markdownregistry.com/api/v1/blob/1e7c3ff3c920eb7fcbce9f1da7025ab6e93840e89e52bf126e073eb9c92159ef
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.