Vitest
jezweb/claude-skills
Set up Vitest testing in any project — detects type (Cloudflare Workers, React, Node, library), generates vitest.config.ts, test setup, utilities, and a sample test.
A skill your agent uses when Codex updates, fixes, or adds unit tests in this project.
Install Writing Unit Tests
$ npx skills add Asvarox/allkaraoke --skill writing-unit-tests -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install Asvarox/allkaraoke writing-unit-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/Asvarox/allkaraoke.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/writing-unit-tests .claude/skills/writing-unit-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 "writing-unit-tests" agent skill from https://github.com/Asvarox/allkaraoke/tree/master/.agents/skills/writing-unit-tests into .claude/skills/writing-unit-tests/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "writing-unit-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/Asvarox/allkaraoke/tree/master/.agents/skills/writing-unit-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 Asvarox/allkaraoke --skill writing-unit-tests -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install Asvarox/allkaraoke writing-unit-tests --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Asvarox/allkaraoke.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/writing-unit-tests .agents/skills/writing-unit-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 "writing-unit-tests" agent skill from https://github.com/Asvarox/allkaraoke/tree/master/.agents/skills/writing-unit-tests into .agents/skills/writing-unit-tests/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "writing-unit-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 Asvarox/allkaraoke --skill writing-unit-tests -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install Asvarox/allkaraoke writing-unit-tests --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Asvarox/allkaraoke.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/writing-unit-tests .cursor/skills/writing-unit-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 "writing-unit-tests" agent skill from https://github.com/Asvarox/allkaraoke/tree/master/.agents/skills/writing-unit-tests into .cursor/skills/writing-unit-tests/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "writing-unit-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/Asvarox/allkaraoke.git --path .agents/skills/writing-unit-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 Asvarox/allkaraoke --skill writing-unit-tests -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install Asvarox/allkaraoke writing-unit-tests --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Asvarox/allkaraoke.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/writing-unit-tests .gemini/skills/writing-unit-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 "writing-unit-tests" agent skill from https://github.com/Asvarox/allkaraoke/tree/master/.agents/skills/writing-unit-tests into .gemini/skills/writing-unit-tests/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "writing-unit-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 Asvarox/allkaraoke writing-unit-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 Asvarox/allkaraoke --skill writing-unit-tests -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/Asvarox/allkaraoke.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/writing-unit-tests .github/skills/writing-unit-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 "writing-unit-tests" agent skill from https://github.com/Asvarox/allkaraoke/tree/master/.agents/skills/writing-unit-tests into .github/skills/writing-unit-tests/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "writing-unit-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 Asvarox/allkaraoke --skill writing-unit-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 Asvarox/allkaraoke writing-unit-tests --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Asvarox/allkaraoke.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/writing-unit-tests .opencode/skills/writing-unit-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 "writing-unit-tests" agent skill from https://github.com/Asvarox/allkaraoke/tree/master/.agents/skills/writing-unit-tests into .opencode/skills/writing-unit-tests/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "writing-unit-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
writing-unit-tests- GitHub stars
- 261
- Token cost
- ~358 tokens
- SKILL.md length
- 141 words
- Files
- 3 (incl. references)
- Skills in repo
- 8
- Repo updated
- First seen
- Licence
- None found
At a glance
A skill your agent uses when Codex updates, fixes, or adds unit tests in this project.
- Adds unit tests in this project
- SKILL.md covers Basics, Shared Test Utilities and Cloudflare Code
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- Tasks that involve Unit testing
What it does
Writing Unit Tests is an agent skill from Asvarox/allkaraoke. Use when Codex updates, fixes, or adds unit tests in this project. Covers basic unit test conventions, Vitest usage, and Cloudflare-related unit tests that should use Cloudflare's Vitest worker-pool integration instead of hand-rolled runtime mocks.
Its SKILL.md is about 360 tokens, which your agent loads only when the skill is triggered. The skill folder holds 4 other files, including reference files (for example `agents/openai.yaml` and `references/cloudflare-vitest-integration.md`).
It sits in Testing & QA, covering Unit testing. It works with Cloudflare, Vitest, Cloudflare Workers and TypeScript. The repository describes itself as: Online Karaoke game with pitch detection in your browser.
When your agent uses it
- Adds unit tests in this project
- Tasks that involve Unit testing
Example prompts
- “/writing-unit-tests”
What it can do on your machine
Read from SKILL.md and the folder at commit 15460f4. 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
Writing Unit Tests loads about 358 tokens when it runs, and up to ~2.9k if it reads all its reference files. Until then it costs about 67 tokens; SKILL.md has 141 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
Without a licence we can't republish the file, so here is its outline and opening line. It has 141 words (~358 tokens).
“For tests that exercise Cloudflare Workers, Pages Functions, KV storage, or other Cloudflare runtime bindings:”
- name
- writing-unit-tests
Files
SKILL.md and 2 other files (references) in .agents/skills/writing-unit-tests of Asvarox/allkaraoke.
- SKILL.md
- agents/openai.yaml
- references/cloudflare-vitest-integration.md
Open the folder on GitHubat commit 15460f4
Compare with similar skills
Writing Unit 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 |
|---|---|---|---|---|---|---|
| Writing Unit Tests this skillAsvarox/allkaraoke | 261 | — | ~358 | Automated safety check: Pass | None | |
| Vitestjezweb/claude-skills | 1.1k | — | ~3k | Automated safety check: Pass | MIT | |
| Cloudflare Workers Testingsecondsky/claude-skills | 227 | — | ~5.3k | Automated safety check: Pass | MIT | |
| Durable Objectshodgef/apiker | 127 | 4 repos | ~1.5k | Automated safety check: Pass | MIT | |
| Blueprint Cloudflare Scaffoldreceptron/mulmoterminal | 237 | — | ~782 | Automated safety check: Pass | MIT | |
| Test Writing WorkflowiOfficeAI/AionUi | 33k | 1 repos | ~1.2k | Automated safety check: Pass | Apache-2.0 |
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Comprehensive testing guide for Cloudflare Workers using Vitest and @cloudflare/vitest-pool-workers.
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Create and review Cloudflare Durable Objects. An agent skill from hodgef/apiker.
Blueprint Cloudflare Scaffold
receptron/mulmoterminal
Lay out a Worker with D1 and static Vue assets, with tests that run inside the Workers runtime.
Test Writing Workflow
iOfficeAI/AionUi
Sets the test-writing workflow for the repository: risk-first scenario lists, behavior-focused Vitest tests, a full run before each commit and a coverage target.
Creating A Package
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Related
Categories
Questions about Writing Unit Tests
What does Writing Unit Tests do?
A skill your agent uses when Codex updates, fixes, or adds unit tests in this project. Writing Unit Tests is an agent skill from Asvarox/allkaraoke. Use when Codex updates, fixes, or adds unit tests in this project.
When should I use Writing Unit Tests?
Writing Unit Tests fits situations like: adds unit tests in this project; tasks that involve Unit testing.
How do I install Writing Unit Tests in Claude Code?
Run `npx skills add Asvarox/allkaraoke --skill writing-unit-tests -a claude-code`. Or copy the skill folder (.agents/skills/writing-unit-tests in Asvarox/allkaraoke) into .claude/skills/writing-unit-tests in your project. Claude Code loads it when a task matches its description.
How do I install Writing Unit Tests in Codex?
Run `npx skills add Asvarox/allkaraoke --skill writing-unit-tests -a codex`. Or copy the skill folder (.agents/skills/writing-unit-tests in Asvarox/allkaraoke) into .agents/skills/writing-unit-tests in your project. Codex loads it when a task matches its description.
Can I use Writing Unit 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 Asvarox/allkaraoke --skill writing-unit-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/writing-unit-tests, .gemini/skills/writing-unit-tests, .github/skills/writing-unit-tests and .opencode/skills/writing-unit-tests in your project.
What does Writing Unit Tests need to run?
SKILL.md names no scripts, command-line tools or credentials: Writing Unit Tests is instructions for the agent only.
Does Writing Unit 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 Writing Unit 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 Writing Unit Tests use?
No licence was found for Writing Unit Tests or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Writing Unit Tests use?
About 358 tokens (SKILL.md is roughly 1.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 2.5k tokens, read only when the agent opens those files.
What are the alternatives to Writing Unit Tests?
Skills that share tags, products or a category with Writing Unit Tests: Vitest (jezweb/claude-skills, 1.1k stars), Cloudflare Workers Testing (secondsky/claude-skills, 227 stars), Durable Objects (hodgef/apiker, 127 stars) and Blueprint Cloudflare Scaffold (receptron/mulmoterminal, 237 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Writing Unit Tests?
Asvarox (a GitHub user) maintains it in Asvarox/allkaraoke, which has 261 GitHub stars. The repository holds 8 skills in this directory. The repository was last updated on October 9, 2026.
Source: Asvarox/allkaraoke on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.