test-driven-development
Test-first development practice where test specifications are written before production code, integrated into plan tasks as mandatory first sub-steps.
npx skills add a5c-ai/babysitter --skill test-driven-development --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
- During implementation (write tests before code) - When verifying step completion ## Process 1. **Specify tests first** - Define inputs, expected outputs, edge cases 2. **Write test code** - Create automated tests matching specification 3. **Implement production code** - Write code that passes the tests 4. **Verify** - Run tests and confirm all pass ## Test Categories - **Unit tests**: Isolated function/method testing - **Integration tests**: Cross-component interaction testing - **Manual verification**: Human-performed checks when automation is impractical ## Key Rules - Never combine test writing and implementation into a single step - Every task with code changes must have associated tests - Tests must be runnable and produce clear pass/fail results - Edge cases must be explicitly considered ## Tool Use Integrated into `methodologies/rpikit/rpikit-plan` and `methodologies/rpikit/rpikit-implement`
- Process
- Test Categories
- Key Rules
- Tool Use
What does the test-driven-development skill do?
Test-first development practice where test specifications are written before production code, integrated into plan tasks as mandatory first sub-steps.
How do I install it?
Run `npx skills add a5c-ai/babysitter --skill test-driven-development --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From a5c-ai/babysitter, a repository with 1,642 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.