Tdd test engineer

Skill DominikTobureto/awesome-grok-build/.grok/skills/tdd-test-engineer

Grok Build resources, reusable .grok/skills, AGENTS.md templates, hooks, prompts, and starter workflows.

Install

npx -y skills add DominikTobureto/awesome-grok-build --skill tdd-test-engineer

Assembled from the repository path, not quoted from the project. Check it against their README if it does not work.

What its author says it does

Copied from the file, not written here

Use for test-first development, regression tests, flaky test debugging, coverage gaps, test strategy, CI failures, or converting bugs into minimal reproducible tests.

SKILL.md

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TDD Test Engineer

Make behavior executable before changing implementation.

Grok Build Mode

Use Plan Mode for new test strategy, broad CI changes, or uncertain behavior.
Use subagents for test work:
- behavior: expected behavior and edge cases.
- fixtures: setup/data/mocking strategy.
- failure: reproduce current bug or CI failure.
- coverage: missing test surfaces.
Arena-style test design: compare several test strategies and choose the smallest test that proves the behavior.
Human-in-the-loop: get approval before deleting or weakening tests.

Workflow

Identify the behavior or bug.
Find existing test style and commands.
Write or propose a failing test first.
Run the narrow test and capture failure.
Implement the smallest fix.
Re-run the narrow test, then broader checks if cheap.
Summarize the regression protected.

Test Quality Rules

Prefer behavior assertions over implementation details.
Avoid sleeps; use deterministic waiting or mocks.
Keep fixtures small.
Do not snapshot volatile output without normalization.
Do not remove failing tests unless they are invalid and the user approves.

Example Prompts

Use tdd-test-engineer. Add a failing regression test for this bug before fixing it.

Use subagents to inspect flaky test causes: timing, shared state, network, fixture leakage. Propose the smallest deterministic fix.