Tdd Red
Tdd Red automatically generates test cases based on code changes, ensuring rapid regression testing and improved 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 tdd-red npx -- -y @trustedskills/tdd-red
Or manually add to ~/.claude/settings.json
{
"mcpServers": {
"tdd-red": {
"command": "npx",
"args": [
"-y",
"@trustedskills/tdd-red"
]
}
}
}Requires Claude Code (claude CLI). Run claude --version to verify your install.
About This Skill
What it does
The tdd-red skill enables AI agents to generate failing test cases (red) as a first step in Test Driven Development (TDD). It focuses on defining the expected behavior through tests before any code is written. This allows for a more structured and deliberate approach to software development, ensuring that functionality meets requirements from the outset.
When to use it
- New Feature Implementation: Use when starting work on a new feature where clear test cases are needed upfront.
- Refactoring Existing Code: Generate failing tests before refactoring to ensure existing functionality isn't broken.
- Behavior-Driven Development (BDD): Generate initial failing tests based on user stories or acceptance criteria.
- Exploring Requirements: Use to clarify and solidify requirements by translating them into concrete testable assertions.
Key capabilities
- Generates failing test cases ("red" phase of TDD)
- Focuses on defining expected behavior through tests
- Supports Test Driven Development (TDD) workflow
Example prompts
- “Generate a failing test for a function that calculates the sum of two numbers.”
- “Write a red test case for an API endpoint that returns user data.”
- "Create a failing test based on this user story: 'As a user, I want to be able to log in with my email and password.'"
Tips & gotchas
- The skill currently only generates the "red" phase of TDD. You'll need other skills or manual effort for the "green" (implementation) and "refactor" phases.
- Provide clear and specific requirements or user stories to get the most effective test cases.
Tags
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Security Audits
| Gen Agent Trust Hub | Pass |
| Socket | Pass |
| Snyk | Pass |
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Passed automated security scans.