Testing Best Practices

adewale/testing-best-practices

> Enforce testing best practices when writing, reviewing, or improving tests. Covers TDD/red-green-refactor, property-based testing, real objects over mocks, correctness by construction, assertion quality, E2E/contract tests, flaky-test upgrades, mock-reality drift, mutation-style gap analysis, and sabotaged/skipped/weak tests. Use when writing tests, reviewing test quality, fixing flaky tests, improving coverage quality, or when the user mentions TDD, testing, coverage, mocks, invariants, types vs tests, defense in depth, or test quality.

4k tokens

context cost

the whole folder, loaded on every use

files

instructions only

copies elsewhere

how many repositories repackaged it

stars on the repo

on the repository, not the skill itself

Install

one command, takes just this skill from the repository

npx skills add https://github.com/adewale/skill-eval-harness --skill testing-best-practices

How to use it

Copy the folder

Take adewale/testing-best-practices from the repository into ~/.claude/skills for personal use, or into .claude/skills inside a project.

Check the name does not clash

The agent identifies a skill by the name field in its header. Two skills with the same name cannot sit side by side — one of them will be ignored.