Maintain
openwpm/OpenWPM
A skill your agent uses to run a periodic codebase-health pass — dependency audit, lint, test suite, dead code / TODO scan, doc freshness, crosslink issue hygiene, and build artifacts.
Hermetic Rust crate building, testing, and formatting via Bazel targets.
Install Rust
$ npx skills add Moosync/Moosync --skill rust -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install Moosync/Moosync rust --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/Moosync/Moosync.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/rust .claude/skills/rust && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "rust" agent skill from https://github.com/Moosync/Moosync/tree/main/.agents/skills/rust into .claude/skills/rust/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "rust", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/Moosync/Moosync/tree/main/.agents/skills/rustType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add Moosync/Moosync --skill rust -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install Moosync/Moosync rust --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Moosync/Moosync.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/rust .agents/skills/rust && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "rust" agent skill from https://github.com/Moosync/Moosync/tree/main/.agents/skills/rust into .agents/skills/rust/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "rust", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add Moosync/Moosync --skill rust -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install Moosync/Moosync rust --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Moosync/Moosync.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/rust .cursor/skills/rust && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "rust" agent skill from https://github.com/Moosync/Moosync/tree/main/.agents/skills/rust into .cursor/skills/rust/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "rust", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/Moosync/Moosync.git --path .agents/skills/rust--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add Moosync/Moosync --skill rust -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install Moosync/Moosync rust --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Moosync/Moosync.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/rust .gemini/skills/rust && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "rust" agent skill from https://github.com/Moosync/Moosync/tree/main/.agents/skills/rust into .gemini/skills/rust/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "rust", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install Moosync/Moosync rustInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add Moosync/Moosync --skill rust -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/Moosync/Moosync.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/rust .github/skills/rust && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "rust" agent skill from https://github.com/Moosync/Moosync/tree/main/.agents/skills/rust into .github/skills/rust/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "rust", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add Moosync/Moosync --skill rust -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install Moosync/Moosync rust --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Moosync/Moosync.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/rust .opencode/skills/rust && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "rust" agent skill from https://github.com/Moosync/Moosync/tree/main/.agents/skills/rust into .opencode/skills/rust/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "rust", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
rust- GitHub stars
- 259
- Token cost
- ~665 tokens
- SKILL.md length
- 201 words
- Files
- 1
- Skills in repo
- 5
- Repo updated
- First seen
- Licence
- GPL-3.0
At a glance
Hermetic Rust crate building, testing, and formatting via Bazel targets.
- Works in 3 steps: Quick build of a feature module —… → Test after change — run Run tests to… → Formatting — invoke Format files as part…
- Tasks that involve Dependency management
- SKILL.md covers Description, Commands, Usage Patterns and Example Workflow, plus 1 more section
- Calls bazel
What it does
Rust is an agent skill from Moosync/Moosync. Hermetic Rust crate building, testing, and formatting via Bazel targets. Covers build/test commands through rulesrust, formatting with bazel run //tools:format, test suites defined in root BUILD, and dependency management via MODULE.bazel crates.io integration.
Its SKILL.md is about 670 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Testing & QA, covering Dependency management and Test generation. It works with Rust. The licence is GPL-3.0.
When your agent uses it
- Tasks that involve Dependency management
- Tasks that involve Test generation
Example prompts
- “/rust”
Workflow steps
3 steps, taken from the first numbered list in SKILL.md.
- Quick build of a feature module — identify the target label in the crate's BUILD.bazel file and run the Build crate command.
- Test after change — run Run tests to catch regressions before committing. Test suites are aggregated under core_tests at the root level.
- Formatting — invoke Format files as part of a Git pre-commit hook (see .git/hooks/pre-commit). The formatter resolves hermetic rustfmt…
What it can do on your machine
Read from SKILL.md and the folder at commit a2b81ce. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
bazel
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Rust loads about 665 tokens when it runs. Until then it costs about 67 tokens; SKILL.md has 201 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from Moosync/Moosync at commit a2b81ce, republished under its GPL-3.0 licence (© Moosync). 201 words, ~665 tokens.
Download SKILL.mdSave it as
.claude/skills/rust/SKILL.md (or your agent's skills folder).- name
- rust
- description
- Hermetic Rust crate building, testing, and formatting via Bazel targets. Covers build/test commands through rules_rust, formatting with bazel run //tools:format, test suites defined in root BUILD, and dependency management via MODULE.bazel crates.io integration.
Rust Skill
Description
The Rust skill provides a set of reusable commands for building, testing, and formatting Rust crates in the Moosync repository. All operations use Bazel's hermetic rules_rust toolchain — Cargo is never invoked directly.
Commands
| Command | Description | Example |
|---|---|---|
| Build crate | Build a specific Rust library or binary target via Bazel. | bazel build //core/player:player |
| Run tests | Execute unit tests for a crate through Bazel. | bazel test //core/database:database_test |
| Format files | Run hermetic formatter on staged .rs, .slint, .proto, and Bazel files via the pre-commit target. | bazel run //tools:format -- path/to/file.rs path/to/file.proto |
Usage Patterns
- Quick build of a feature module — identify the target label in the crate's
BUILD.bazelfile and run the Build crate command. - Test after change — run Run tests to catch regressions before committing. Test suites are aggregated under
core_testsat the root level. - Formatting — invoke Format files as part of a Git pre-commit hook (see
.git/hooks/pre-commit). The formatter resolves hermetic rustfmt, slint-lsp, buildifier, and buf through Bazel runfiles.
Example Workflow
# Build the player module
bazel build //core/player:player
# Run tests for the database crate
bazel test //core/database:database_test
# Format specific files (pre-commit hook pattern)
bazel run //tools:format -- core/player/src/lib.rs ui/slint/app.slintRules_rust Integration Notes
- All Rust dependencies are declared in
modules/crates.MODULE.bazelvia thecrates.iointegration. Do not manually edit lockfiles. - New crates should use
rust_library,rust_binary, orrust_shared_libraryfrom@rules_rust//rust:defs.bzl. - Build scripts (build.rs) are declared with
cargo_build_script()from@rules_rust//cargo:cargo_build_script.bzl.
© Moosync, GPL-3.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in .agents/skills/rust of Moosync/Moosync.
Open the folder on GitHubat commit a2b81ce
Compare with similar skills
Rust next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Rust this skillMoosync/Moosync | 259 | — | ~665 | Automated safety check: Pass | GPL-3.0 | |
| Maintainopenwpm/OpenWPM | 1.4k | — | ~1.5k | Automated safety check: Pass | Custom licence | |
| Validate PRathola/claude-night-market | 342 | — | ~2.2k | Automated safety check: Pass | MIT | |
| Find Untested Sourcesdotnet/skills | 5.6k | 1 repos | ~3.3k | Automated safety check: Pass | MIT | |
| Testingfastrepl/anarlog | 9.4k | — | ~819 | Automated safety check: Pass | MIT | |
| Review Pre Commitopenwpm/OpenWPM | 1.4k | — | ~788 | Automated safety check: Pass | Custom licence |
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Use as a pre-commit quality gate — review the working diff for stub patterns (TODO/FIXME/unimplemented!()/todo!()), debug leftovers (dbg!, stray console.log/println!, commented-out code), then run…
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Related
Works with
Categories
Questions about Rust
What does Rust do?
Hermetic Rust crate building, testing, and formatting via Bazel targets. Rust is an agent skill from Moosync/Moosync. Hermetic Rust crate building, testing, and formatting via Bazel targets.
When should I use Rust?
Rust fits situations like: tasks that involve Dependency management; tasks that involve Test generation.
How do I install Rust in Claude Code?
Run `npx skills add Moosync/Moosync --skill rust -a claude-code`. Or copy the skill folder (.agents/skills/rust in Moosync/Moosync) into .claude/skills/rust in your project. Claude Code loads it when a task matches its description.
How do I install Rust in Codex?
Run `npx skills add Moosync/Moosync --skill rust -a codex`. Or copy the skill folder (.agents/skills/rust in Moosync/Moosync) into .agents/skills/rust in your project. Codex loads it when a task matches its description.
Can I use Rust in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add Moosync/Moosync --skill rust -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/rust, .gemini/skills/rust, .github/skills/rust and .opencode/skills/rust in your project.
What does Rust need to run?
Going by SKILL.md and its folder, Rust needs the command-line tools its instructions call (bazel).
Does Rust access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Rust safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Rust use?
Rust is published under the GPL-3.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Rust use?
About 665 tokens (SKILL.md is roughly 2.7k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Rust?
Skills that share tags, products or a category with Rust: Maintain (openwpm/OpenWPM, 1.4k stars), Validate PR (athola/claude-night-market, 342 stars), Find Untested Sources (dotnet/skills, 5.6k stars) and Testing (fastrepl/anarlog, 9.4k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Rust?
Moosync (a GitHub organization) maintains it in Moosync/Moosync, which has 259 GitHub stars. The repository holds 5 skills in this directory. The repository was last updated on October 1, 2026.
Source: Moosync/Moosync on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.