Vitest agent skills for Claude Code, Codex and other agents.

Analyze one NemoClaw PR lifetime to identify contributor, review, and automation delays or compare it with a latency target.

NVIDIA/NemoClaw

ALWAYS USE whenever asked to write, add, or generate unit tests for existing code in xUnit, MSTest, NUnit, pytest, Vitest/Jest, Go, or another framework, including "tests only for" one helper…

dotnet/skills

Triages survived mutants and unnecessary test statements using Trailmark call-graph data, sorting them into false positives, missing unit tests and fuzzing targets.

trailofbits/skills

Vitest fast unit testing framework powered by Vite with Jest-compatible API.

JetBrains/skills

Write and review unit tests for Vue 3 + TypeScript + Vitest + Pinia codebases.

github/awesome-copilot

Add, review, and maintain Chromatic visual regression coverage in the Sanity monorepo via dev/storybook stories, the vitest browser-mode suite, and Playwright e2e snapshots.

sanity-io/sanity

A skill your agent uses for Vue.js testing. An agent skill from JetBrains/skills.

JetBrains/skills

Generates and writes new unit tests for any programming language — scaffolds .NET test projects, pytest suites, Vitest/Jest suites, Go test files, and JUnit suites, and configures coverage tooling…

microsoft/testfx

Deep-dive audit using the full testsmells.org 19-smell academic catalog for tests in any language.

microsoft/testfx

Analyzes test suites in any language and tags each test with a standardized set of traits (positive, negative, critical-path, boundary, smoke, regression, integration, performance, security).

microsoft/testfx

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.

iOfficeAI/AionUi

Reviews newly written or edited tests against nine rules that cut test bloat, such as mock-heavy checks and near-duplicate cases, before they are committed.

amElnagdy/guard-skills

Scheduled CI skill that scans a repository for small, certain docs, test and code hygiene issues and fixes them on one branch with a commit per finding.

QwenLM/qwen-code

对 Yakit 仓库的代码改动做规范化 code review：按代码逻辑、TS 定义、UI 引用与 Props、CSS 样式、依赖版本、配置项六个维度审查，检查测试用例缺失，强制执行 tsc 类型检查与 vitest 测试验证，输出「结果汇总 / 明细解释 / 合并结论」三块报告，经用户确认后写入文件。当用户要求 review、审查、评审代码改动，或在提交、合并、提 PR…

yaklang/yakit

Local development guide for the Happy pnpm monorepo: install, build, test and run the CLI, server, Expo app and Tauri desktop packages.

slopus/happy

A skill your agent uses when adding, changing, or reviewing an LLM/MCP tool in Trilium (the defineTools definitions under packages/trilium-core/src/services/llm/tools/ —…

TriliumNext/Trilium

Create and review Cloudflare Durable Objects. An agent skill from hodgef/apiker.

hodgef/apiker

Generates Vitest tests for every runnable code example on a JavaScript concept documentation page, following a four-phase extraction and conversion process.

leonardomso/33-js-concepts

A skill your agent uses for test selection and quality across backend, frontend, and e2e; load its backend reference for Vitest projects, mocking, DB fixtures, and performance.

archestra-ai/archestra

Launch and drive Yep Anywhere — an isolated dev server plus real browser interaction — and run the repository's check suite.

kzahel/yepanywhere

Vitest testing framework patterns for test setup, async testing, mocking with vi., snapshots, and test performance (formerly test-vitest).

pixel-point/animate-text

Add or change any text a player can see, in every locale the game ships in.

openfootmanager/openfootmanager

Make @uiverify/vitest (Vitest browser-mode) captures deterministic so component visual tests stop coming back "changed" without a real change (flaky diffs).

FranciscoMoretti/chat-js

Testing CKEditor 5 plugins in the Trilium monorepo. An agent skill from TriliumNext/Trilium.

TriliumNext/Trilium

Scaffold a new workspace package in the c15t monorepo. An agent skill from c15t/c15t.

c15t/c15t

A skill your agent uses when the user asks to fix a bug, references a GitHub issue number, or describes an issue and wants a fix.

brunosabot/streamline-card

Use when writing or changing Vitest or React Testing Library tests under `web/` or `packages/dify-ui/`, or when the user explicitly requests…

langgenius/dify

Designs and implements testing strategies for any codebase. An agent skill from CloudAI-X/claude-workflow-v2.

CloudAI-X/claude-workflow-v2

Check the visual impact of an edit mid-task with uiverify check — render just the components you're touching on the UI Verify fleet and diff them against the real CI baseline, without opening a PR…

igrlk/storybook-addon-test-codegen

Generate Vitest + React Testing Library tests for Dify frontend components, hooks, and utilities.

Ohh-889/skyroc

Writes Vitest tests following project patterns: tests/ directories, vi.mock() for module mocking with vi.hoisted() for test-time factories, global LLM mock from src/test/setup.ts, environment…

caliber-ai-org/ai-setup

Write idiomatic Effect v4 TypeScript following official best practices from effect-solutions and the Effect source.

mattiacerutti/supernova

Guides an agent through probing an unfamiliar project's test setup, then choosing a red-light-first testing strategy matched to the task type.

huiliyi37/Tianshu-harness

Fix and create Svelte 5 tests with vitest-browser-svelte and Playwright.

spences10/sveltest

Scaffold a new shared package in the saleor-apps monorepo under ./packages/.

saleor/apps

Write idiomatic Effect v4 TypeScript verified against the pinned effect@4.0.0-rc.112 source.

tellahq/opensession

Plan, implement, and debug frontend tests: unit/integration/E2E/visual/a11y.

chongdashu/vibejam-starter-pack

A skill your agent uses when running tests in the Nango monorepo - knows unit vs integration configs, vitest commands, Docker setup, and common test patterns

NangoHQ/nango

Expert-level JavaScript testing skill focused on writing high-quality tests that find bugs, serve as documentation, and prevent regressions.

softmaple/softmaple

Read before writing or reviewing any frontend code in lightlystudioview - Svelte, TypeScript, or SvelteKit files.

lightly-ai/lightly-studio

Home Assistant frontend testing and validation workflow. An agent skill from home-assistant/frontend.

home-assistant/frontend

Repository-specific testing guide. An agent skill from jmfederico/pi-web.

jmfederico/pi-web

Plan, implement, and debug frontend tests: unit/integration/E2E/visual/a11y.

chongdashu/vibejam-starter-pack

Write, run, and debug Playwright E2E / integration / live tests.

ansible/ansible-ui

A skill your agent uses when measuring or chasing Vitest/v8 code coverage in the Trilium monorepo — "what's below 100%?", "which files need tests?", "what lines of X are uncovered?", "take <area to…

TriliumNext/Trilium

Help users test ESLint rules with Vitest, supporting snapshot testing and custom assertions

antfu-collective/eslint-vitest-rule-tester

A skill your agent uses when the user asks to run tests, ejecutar tests, lanzar tests, pytest, vitest, check types, typecheck, lint, or verify the codebase.

artcc/freelingo

Aggregates Vitest v8/Istanbul coverage across Tachi workspaces via tachi-coverage-tools (manifest, CLI, optional programmatic API).

zkldi/Tachi