Claude Skills for Testing
Claude skills for engineers writing unit tests, integration tests and end-to-end tests.
Download the free pack
Get 3 Claude skills in a zip file. Upload each folder as its own skill in Claude.
Download pack (.zip)Free. No email required. Install instructions
Tests that don't catch regressions are worse than no tests — they slow you down while pretending to protect you. This pack helps Claude write tests that actually assert behaviour and are worth keeping.
What you can do with this pack
- Write unit tests for new code
- Add regression tests when fixing bugs
- Build end-to-end tests for critical user flows
- Refactor brittle tests
- Set up the right testing strategy for a new project
Skills in this pack
Unit Test Writer
Write unit tests that assert behaviour, not implementation. Trigger on 'write tests', 'add unit tests', 'test this function', 'coverage for this', or when the user wants tests at the function or module level.
Regression Test Writer
Write a regression test after fixing a bug. Trigger on 'regression test', 'prevent this bug', 'test to catch this', 'add a test for the fix', or when a user fixes a bug and needs a test to lock the fix in.
End-to-End Flow Tester
Write end-to-end tests for critical user flows. Trigger on 'e2e test', 'end-to-end', 'Playwright', 'Cypress', 'integration test', 'critical path', or when the user wants browser-level or full-stack tests.
How to install the skills
- In Claude, turn on code execution under Settings → Capabilities.
- Download and unzip the pack above — you'll see one folder per skill.
- Go to Customize → Skills, click + Create skill, then Upload a skill.
- Zip each individual skill folder and upload it.
- Toggle the skill on. Claude will use it automatically when your request matches.
Full instructions: /download/claude-skills
FAQ
What is a Claude skill?
A Claude skill is a folder containing a SKILL.md file. It tells Claude when to trigger the skill and how to execute the task. Skills live inside your Claude account once uploaded.
Do these work on Free, Pro and Max plans?
Yes, as long as code execution is enabled. On Team and Enterprise plans, an admin needs to enable skills at the organisation level first.
Can I edit the skills?
Yes — the skills are plain markdown files. Open SKILL.md in any editor and change the description, steps, templates, or output format to match how you work.
Do I need all the skills in the pack?
No. Upload only the ones you'll use. Too many active skills makes Claude less precise about which one to pick.