🧪 Tdd
Use for any code implementation task. Enforces RED-GREEN-REFACTOR cycle. "If you didn't watch it fail, you don't know if it tests the right thing."
npx playbooks add skill baxtercooper/nexus --skill tdd
About Tdd
The Tdd skill is used for code implementation tasks and enforces the RED-GREEN-REFACTOR cycle, a process that ensures tests are effective by first failing, then passing, and finally being refined. This skill is useful for any code implementation task, as it helps guarantee that tests are correctly validating the code's functionality. A developer would reach for this skill when starting a new code implementation task to ensure their tests are robust and reliable.
The 24-word prompt provides structured testing & qa guidance — covering detailed methodology and consistent output formats. Install it in one command.
Use Cases
- Writing unit, integration, and end-to-end tests
- Setting up test coverage and CI pipelines
- Refactoring legacy code with confidence using tests
- Creating test plans and QA checklists
Example Prompts
System Prompt (24 words)
Use for any code implementation task. Enforces RED-GREEN-REFACTOR cycle. "If you didn't watch it fail, you don't know if it tests the right thing."
Frequently Asked Questions
What is Tdd?
Tdd is a free testing & qa skill for AI coding agents. Use for any code implementation task. Enforces RED-GREEN-REFACTOR cycle. "If you didn't watch it fail, you don't know if it tests the right thing.". It provides a specialized system prompt that configures your agent with testing & qa expertise.
How do I use Tdd with Claude Code?
Run npx playbooks add skill baxtercooper/nexus --skill tdd in your terminal to install Tdd into your Claude Code session. It works immediately after installation.
Which AI coding agents work with Tdd?
Tdd is compatible with Claude Code, Cursor, GitHub Copilot, Windsurf, OpenClaw, Cline, and any AI agent that supports custom system prompts or .cursorrules files.
Is Tdd free to use?
Yes, Tdd is completely free and open source. The full source is available on GitHub at https://github.com/baxtercooper/nexus/tree/main/plugins/nexus-orchestrator/skills/tdd. You only need a subscription to the AI agent you use it with.
