Emc
aklofas/kicad-happy
EMC pre-compliance risk analysis for KiCad PCB designs — 18 check categories, 44 rule IDs covering ground planes, decoupling, I/O filtering, switching harmonics, clock routing, differential pair…
Add, revise, or review Marin tests for an explicit behavior change, regression, or test-quality request.
Install Write Tests
$ npx skills add marin-community/marin --skill write-tests -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install marin-community/marin write-tests --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/marin-community/marin.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/write-tests .claude/skills/write-tests && 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 "write-tests" agent skill from https://github.com/marin-community/marin/tree/main/.agents/skills/write-tests into .claude/skills/write-tests/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "write-tests", 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/marin-community/marin/tree/main/.agents/skills/write-testsType 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 marin-community/marin --skill write-tests -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install marin-community/marin write-tests --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/marin-community/marin.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/write-tests .agents/skills/write-tests && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "write-tests" agent skill from https://github.com/marin-community/marin/tree/main/.agents/skills/write-tests into .agents/skills/write-tests/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "write-tests", 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 marin-community/marin --skill write-tests -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install marin-community/marin write-tests --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/marin-community/marin.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/write-tests .cursor/skills/write-tests && 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 "write-tests" agent skill from https://github.com/marin-community/marin/tree/main/.agents/skills/write-tests into .cursor/skills/write-tests/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "write-tests", 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/marin-community/marin.git --path .agents/skills/write-tests--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 marin-community/marin --skill write-tests -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install marin-community/marin write-tests --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/marin-community/marin.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/write-tests .gemini/skills/write-tests && 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 "write-tests" agent skill from https://github.com/marin-community/marin/tree/main/.agents/skills/write-tests into .gemini/skills/write-tests/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "write-tests", 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 marin-community/marin write-testsInstalls 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 marin-community/marin --skill write-tests -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/marin-community/marin.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/write-tests .github/skills/write-tests && 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 "write-tests" agent skill from https://github.com/marin-community/marin/tree/main/.agents/skills/write-tests into .github/skills/write-tests/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "write-tests", 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 marin-community/marin --skill write-tests -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install marin-community/marin write-tests --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/marin-community/marin.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/write-tests .opencode/skills/write-tests && 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 "write-tests" agent skill from https://github.com/marin-community/marin/tree/main/.agents/skills/write-tests into .opencode/skills/write-tests/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "write-tests", 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
write-tests- GitHub stars
- 3.9k
- Token cost
- ~205 tokens
- SKILL.md length
- 100 words
- Files
- 1
- Skills in repo
- 41
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
Add, revise, or review Marin tests for an explicit behavior change, regression, or test-quality request.
- Tasks that involve Test generation
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Write Tests is an agent skill from marin-community/marin. Add, revise, or review Marin tests for an explicit behavior change, regression, or test-quality request.
Its SKILL.md is about 210 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 Test generation. The repository describes itself as: Open-source framework for the research and development of foundation models. The licence is Apache-2.0.
When your agent uses it
- Tasks that involve Test generation
Example prompts
- “/write-tests”
What it can do on your machine
Read from SKILL.md and the folder at commit be1f5f1. 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
No scripts in the folder and no shell commands in SKILL.md.
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
Write Tests loads about 205 tokens when it runs. Until then it costs about 29 tokens; SKILL.md has 100 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 marin-community/marin at commit be1f5f1, republished under its Apache-2.0 licence (© marin-community). 100 words, ~205 tokens.
Download SKILL.mdSave it as
.claude/skills/write-tests/SKILL.md (or your agent's skills folder).- name
- write-tests
- description
- Add, revise, or review Marin tests for an explicit behavior change, regression, or test-quality request.
Write tests
Read root TESTING.md before writing or reviewing tests. For tests under
lib/*, also read the nearest module AGENTS.md and every testing guide it
references.
Treat those files as the source of truth for behavioral value, test style, fakes and mocks, timing, numerical tolerances, markers, and commands.
Before adding a standalone scalar or configuration guard test, name the reported regression or compatibility-critical public contract it protects. If there is none, test consequential behavior on the valid path or omit the test. Do not pin an exact dependency version, default, or serialized configuration unless an external consumer depends on it.
© marin-community, Apache-2.0. 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/write-tests of marin-community/marin.
Open the folder on GitHubat commit be1f5f1
Compare with similar skills
Write Tests 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 |
|---|---|---|---|---|---|---|
| Write Tests this skillmarin-community/marin | 3.9k | — | ~205 | Automated safety check: Pass | Apache-2.0 | |
| Emcaklofas/kicad-happy | 1.4k | 1 repos | ~2.8k | Automated safety check: Pass | MIT | |
| Swig Testswig/swig | 6.3k | — | ~2.3k | Automated safety check: Pass | Custom licence | |
| Generate Test Cases342164796/generate-test-cases | 119 | 1 repos | ~2.9k | Automated safety check: Pass | None | |
| Verify Cc Safety Netkenryu42/cc-safety-net | 1.6k | — | ~2k | Automated safety check: Pass | MIT | |
| Wioworkersio/skills | 190 | — | ~5.8k | Automated safety check: Pass | MIT |
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Questions about Write Tests
What does Write Tests do?
Add, revise, or review Marin tests for an explicit behavior change, regression, or test-quality request. Write Tests is an agent skill from marin-community/marin. Add, revise, or review Marin tests for an explicit behavior change, regression, or test-quality request.
When should I use Write Tests?
Write Tests fits situations like: tasks that involve Test generation.
How do I install Write Tests in Claude Code?
Run `npx skills add marin-community/marin --skill write-tests -a claude-code`. Or copy the skill folder (.agents/skills/write-tests in marin-community/marin) into .claude/skills/write-tests in your project. Claude Code loads it when a task matches its description.
How do I install Write Tests in Codex?
Run `npx skills add marin-community/marin --skill write-tests -a codex`. Or copy the skill folder (.agents/skills/write-tests in marin-community/marin) into .agents/skills/write-tests in your project. Codex loads it when a task matches its description.
Can I use Write Tests 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 marin-community/marin --skill write-tests -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/write-tests, .gemini/skills/write-tests, .github/skills/write-tests and .opencode/skills/write-tests in your project.
What does Write Tests need to run?
SKILL.md names no scripts, command-line tools or credentials: Write Tests is instructions for the agent only.
Does Write Tests 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 Write Tests 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 Write Tests use?
Write Tests is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Write Tests use?
About 205 tokens (SKILL.md is roughly 820 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 Write Tests?
Skills that share tags, products or a category with Write Tests: Emc (aklofas/kicad-happy, 1.4k stars), Swig Test (swig/swig, 6.3k stars), Generate Test Cases (342164796/generate-test-cases, 119 stars) and Verify Cc Safety Net (kenryu42/cc-safety-net, 1.6k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Write Tests?
marin-community (a GitHub organization) maintains it in marin-community/marin, which has 3,902 GitHub stars. The repository holds 41 skills in this directory. The repository was last updated on October 8, 2026.
Source: marin-community/marin on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.