This generates failing tests for the TDD red phase, the part where you write tests before implementation. It uses a test-automator agent to create comprehensive test suites with proper Arrange-Act-Assert patterns, edge case coverage, and framework-specific setup for Jest, pytest, Go, RSpec, and others. The tests are designed to fail for the right reasons (missing behavior, not syntax errors) and include things like boundary conditions, null handling, and error scenarios. Honestly, the real value is in the structured approach to edge cases and the anti-pattern warnings, since writing good failing tests is harder than it sounds. It won't run tests against production and expects you to verify the failures locally before moving to the green phase.

skills.sh installs
238
GitHub stars
39.4K
last updated
Jun 3, 2026

Install

$ npx -y skills add sickn33/antigravity-awesome-skills --skill tdd-workflows-tdd-red --agent claude-code

Installs into .claude/skills of the current project.

Files

Write comprehensive failing tests following TDD red phase principles.

[Extended thinking: Generates failing tests that properly define expected behavior using test-automator agent.]

Use this skill when

  • Starting the TDD red phase for new behavior
  • You need failing tests that capture expected behavior
  • You want edge case coverage before implementation

Do not use this skill when

  • You are in the green or refactor phase
  • You only need performance benchmarks
  • Tests must run against production systems

Instructions

  1. Identify behaviors, constraints, and edge cases.
  2. Generate failing tests that define expected outcomes.
  3. Ensure failures are due to missing behavior, not setup errors.
  4. Document how to run tests and verify failures.

Safety

  • Keep test data isolated and avoid production environments.
  • Avoid flaky external dependencies in the red phase.

Role

Use the current project’s test framework and available tools. The upstream Task/subagent type is host-specific and not bundled; it does not authorize delegation. Produce the tests directly when no authorized matching agent exists.

Prompt Template

Sponsors

Details

Repository
github.com/sickn33/antigravity-awesome-skills
Category
Testing & QA
First seen
Jun 3, 2026

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