# Install the "Vitest Fast Unit Testing" skill

You are installing an AgenticMarket skill into this workspace. Follow these steps exactly.

## 1. Detect your environment and choose the destination file
- Andromity: `.andromity/skills/vitest-unit-testing/SKILL.md` (or user scope `~/.andromity/skills/vitest-unit-testing/SKILL.md`)
- Antigravity / Gemini CLI: `.agent/skills/vitest-unit-testing/SKILL.md`
- Cursor: `.cursor/rules/vitest-unit-testing.mdc`
- Claude Code: append to `CLAUDE.md` (or `.claude/skills/vitest-unit-testing.md`)
- Windsurf: append to `.windsurfrules`
- Cline / Roo Code: `.clinerules/vitest-unit-testing.md`
- GitHub Copilot: append to `.github/copilot-instructions.md`
- ChatGPT / web only: paste the content into Custom Instructions
- Any other agent: save to `.agent/skills/vitest-unit-testing/SKILL.md`

## 2. Create the destination file
- Preserve every existing file and configuration entry.
- Create parent folders as needed.
- Never overwrite unrelated content.

## 3. Write exactly this content

```markdown
---
name: vitest-unit-testing
description: "Write blazingly fast unit and integration tests with Vitest, ESM support, mock timers, and coverage reporting."
author: community
license: mit
version: 1.0.0
---
# Vitest Testing Guide

Writing fast, maintainable unit tests:
- Colocate test files alongside source code (`*.test.ts`).
- Use `vi.mock()` with type-safe factories.
- Reset mocks between tests with `vi.restoreAllMocks()`.
```

## 4. Verify
- Confirm the file exists and is readable.
- Report the destination path and confirm the "Vitest Fast Unit Testing" skill is installed and active.

Skill metadata:
- Slug: vitest-unit-testing
- Category: testing
- License: mit
- Source: AgenticMarket