Test Writer
Generates comprehensive test cases from requirements documents, specifications, or user stories to improve software quality.
Install on your platform
We auto-selected Claude Code based on this skill’s supported platforms.
Run in terminal (recommended)
claude mcp add test-writer npx -- -y @trustedskills/test-writer
Or manually add to ~/.claude/settings.json
{
"mcpServers": {
"test-writer": {
"command": "npx",
"args": [
"-y",
"@trustedskills/test-writer"
]
}
}
}Requires Claude Code (claude CLI). Run claude --version to verify your install.
About This Skill
What it does
The test-writer skill enables AI agents to generate automated tests for JavaScript code. It supports writing unit, integration, and end-to-end tests using popular testing frameworks like Jest or Mocha.
When to use it
- You need to quickly create test cases for new JavaScript functions.
- You want to ensure code coverage after making changes to a project.
- Your team follows a test-driven development (TDD) workflow.
- You're automating the process of setting up testing infrastructure for a JavaScript application.
Key capabilities
- Generates unit tests for individual functions
- Writes integration tests for module interactions
- Supports Jest and Mocha testing frameworks
- Can create end-to-end tests using tools like Cypress or Playwright
Example prompts
- "Write a Jest test for the
addfunction inmath.js." - "Generate integration tests for the user authentication module."
- "Create end-to-end tests for the login flow using Cypress."
Tips & gotchas
- Ensure your codebase has clear, modular functions to make testing easier.
- The skill may require additional configuration if you're using a non-standard test framework or project structure.
Tags
TrustedSkills Verification
Unlike other registries that point to live repositories, TrustedSkills pins every skill to a verified commit hash. This protects you from malicious updates — what you install today is exactly what was reviewed and verified.
Security Audits
| Gen Agent Trust Hub | Pass |
| Socket | Pass |
| Snyk | Pass |
🌐 Community
Passed automated security scans.