A Rust testing workflow that runs unit tests, integration tests, and documentation tests, with an optional code-coverage report. It uses nextest to run tests in parallel.

Use it to run a complete Rust test suite, investigate failures, and generate an HTML coverage report.

It checks more than unit tests alone, helping find problems between components and in code examples documented for users.

test-rust — Skill for Claude Code and Codex by d-oit

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent

npx skills add d-oit/rust-2026-template --skill test-rust

Clone the repo

git clone --depth 1 https://github.com/d-oit/rust-2026-template

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/d-oit/rust-2026-template/test-rust/github.svg)](https://agentmods.dev/skills/d-oit/rust-2026-template/test-rust)

Your own site

<a href="https://agentmods.dev/skills/d-oit/rust-2026-template/test-rust"><img src="https://agentmods.dev/badge/skills/d-oit/rust-2026-template/test-rust/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/d-oit/rust-2026-template/test-rust"><img src="https://agentmods.dev/badge/skills/d-oit/rust-2026-template/test-rust.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 63 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 536 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits

NVIDIA SkillSpector pass 7 Sept 2026

How audits are shown

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00063	$0.00536
Opus 5.5	$0.00025	$0.00214
Sonnet 5.5	$0.00013	$0.00107
Haiku 4.5	$0.00006	$0.00054

Measured 20d ago against content hash e390b24d77f4, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

test-rust scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 20d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.agents/skills/test-rust/SKILL.md · 88 lines

What it actually says

Skill: test-rust

Purpose

Run the complete test suite for a Rust project using best practices.

Prerequisites

cargo nextest (cargo install cargo-nextest)
cargo llvm-cov for coverage (cargo install cargo-llvm-cov)

Steps

1. Unit + integration tests

cargo nextest run --all-features --workspace

2. Doc tests

cargo test --doc --all-features

3. With coverage

cargo llvm-cov nextest --all-features --workspace --html

4. Report metrics

Call metrics-reporter skill.

Test Organization

src/lib.rs          # #[cfg(test)] mod tests {}
tests/              # Integration tests
benches/            # Criterion benchmarks

Success Criteria

All tests pass
Doc tests pass
Coverage >= 80%

build-rust, lint-rust, release-rust, metrics-reporter

Rationalizations

Rationalization	Reality
"Unit tests pass, so the code is correct."	Unit tests don't catch integration issues. Run doc tests and integration tests too.
"Coverage is at 50%, that's probably fine."	Below 80% coverage leaves significant untested code paths.
"I'll skip doc tests — they're just examples."	Doc tests are compiled and run. They catch stale documentation and API mismatches.

Red Flags

Running cargo test without --all-features (hides feature-gated test failures)
Skipping doc tests (cargo test --doc)
Not using cargo-nextest for parallel test execution

References

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

evals/evals.json 1.1 KB

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

20d ago Changed · -3 lines e390b24d77f4
1mo ago First seen · 91 lines · 63 tokens per session scan A da4771365e72

Subscribe to this mod's changes

test-rust is a skill published in the GitHub repository d-oit/rust-2026-template (14 stars, last pushed today), licensed MIT. It adds 63 tokens to every session and 536 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Debugging Languages Rust Testing ai-agents ai-tooling template

rtk-tdd

Enforces TDD (Red-Green-Refactor) for Rust development. Auto-triggers on implementation, testing, refactoring, and bug fixing tasks. Provides Rust-idiomatic testing patterns with anyhow/thiserror, cfg(test), and Arrange-Act-Assert workflow.

MDMAtk/TormentNexus · 61 tokens

rust-check

Run cargo check on the current Rust project to find compile errors.

Hmbown/CodeWhale · 15 tokens

test-corpus

The testdocuments submodule is a bucket-fetched fixture corpus that is not committed. This skill covers readtestfixture, missing fixtures, valid A/B controls, and submodule push order. Load before running Rust tests on a fresh clone, setting up an A/B control, adding a fixture-backed test, or diagnosing…

xberg-io/xberg · 68 tokens

hotpath_init

Configure hotpath profiling in a Rust project. Adds the hotpath dependency with feature-gated setup, instruments main with hotpath::main, functions with measure/measureall, and wraps channels, mutexes, rwlocks, streams, futures, reqwest clients, axum routers and byte-level I/O with hotpath macros. Use when the user…

pawurb/hotpath-rs · 88 tokens

memory-safety-patterns

Implement memory-safe programming with RAII, ownership, smart pointers, and resource management across Rust, C++, and C. Use when writing safe systems code, managing resources, or preventing memory bugs.

rmyndharis/antigravity-skills · 45 tokens

hotpath_init_ci

Set up the hotpath Cloud CI integration in a Rust project whose pull requests come from branches of the same repository (private repositories, or public ones that do not benchmark fork pull requests). Adds the hotpath-cloud feature, a regression policy file and a GitHub Actions benchmark workflow that uploads hotpath…

pawurb/hotpath-rs · 98 tokens