Follow mocking best practices
SkillDev toolsmock-best-practices is a skill that an AI agent can use when reviewing CI coverage, automated checks, or test strategy related to mocking. It helps the agent check that code mocks follow best practices during reviews, with a focus on whether the rule is continuously verified rather than just documented.
Available today. Use it from your connected AI after setup.
No other account needed.
Have an AI agent that can load skills.
Then ask your AI: use the Follow mocking best practices skill
What your AI can do with it
- Review CI coverage related to mocking practices
- Review automated checks that verify mocking rules
- Review test strategy related to mocking
- Check that code mocks follow best practices during reviews
- Assess whether mocking rules are continuously verified, not just documented
Getting started
- Have an AI agent that can load skills.
- Add the mock-best-practices skill to the agent's available skills.
- Ask the agent to review CI coverage, automated checks, or test strategy related to mocking, and it will apply the skill.
What this skill tells your AI
The instructions your AI receives, as published by thedaviddias/front-end-checklist in skills/mock-best-practices/SKILL.md and read by ahel’s review.
Proper mocking isolates units under test while keeping tests realistic—over-mocking creates false confidence when tests pass but production breaks.
Quick Reference
- Mock external dependencies (APIs, databases, file system), not business logic
- Always clean up mocks with jest.restoreAllMocks() in afterEach
- Use MSW for realistic API mocking without coupling to implementation
- Test behavior and outputs, not internal implementation details
Check
Review this test file for mocking patterns, checking for over-mocking, missing mock cleanup, and proper mock implementation.
Fix
Improve mocking strategy by removing unnecessary mocks, adding proper cleanup, and mocking at the right level of abstraction.
Explain
Explain mocking best practices including when to mock, what to mock, and common mocking pitfalls.
Code Review
Review tests, CI workflows, and enforcement points related to Follow mocking best practices. Flag exact gaps where the rule is not automatically verified or where failures do not block regressions.
For full implementation details, code examples, and framework-specific guidance,
see references/rule.md.
Rule page: https://frontendchecklist.io/en/rules/testing/mock-best-practices
Signals
- GitHub stars
- 74k
- Forks
- 7k
- Last commit
- Aug 2026
Questions
- When should this skill be used?
- Use it when reviewing CI coverage, automated checks, or test strategy related to mocking best practices.
- What does the skill focus on?
- It focuses on whether the mocking rule is continuously verified, not just documented.
- What does it do for my agent?
- It helps the agent check that code mocks follow best practices during reviews.
Advanced
- Item type
- skill
- Key
mock-best-practices- Source
- github.com/thedaviddias/front-end-checklist