SKILL.md

Review Playwright Tests

Systematically review Playwright test files for anti-patterns, missed best practices, and coverage gaps.

Input

$ARGUMENTS can be:

A file path: review that specific test file

A directory: review all test files in the directory

Empty: review all tests in the project's testDir

Steps

1. Gather Context

Read playwright.config.ts for project settings

List all *.spec.ts / *.spec.js files in scope

If reviewing a single file, also check related page objects and fixtures

2. Check Each File Against Anti-Patterns

Load anti-patterns.md from this skill directory. Check for all 20 anti-patterns.

Critical (must fix):

waitForTimeout() usage

Non-web-first assertions (expect(await ...))

Hardcoded URLs instead of baseURL

CSS/XPath selectors when role-based exists

Missing await on Playwright calls

Shared mutable state between tests

Test execution order dependencies

Warning (should fix):
8. Tests longer than 50 lines (consider splitting)
9. Magic strings without named constants
10. Missing error/edge case tests
11. page.evaluate() for things locators can do
12. Nested test.describe() more than 2 levels deep
13. Generic test names ("should work", "test 1")

Info (consider):
14. No page objects for pages with 5+ locators
15. Inline test data instead of factory/fixture
16. Missing accessibility assertions
17. No visual regression tests for UI-heavy pages
18. Console error assertions not checked
19. Network idle waits instead of specific assertions
20. Missing test.describe() grouping

3. Score Each File

Rate 1-10 based on:

9-10: Production-ready, follows all golden rules

7-8: Good, minor improvements possible

5-6: Functional but has anti-patterns

3-4: Significant issues, likely flaky

1-2: Needs rewrite

4. Generate Review Report

For each file:

## <filename> — Score: X/10

### Critical
- Line 15: `waitForTimeout(2000)` → use `expect(locator).toBeVisible()`
- Line 28: CSS selector `.btn-submit` → `getByRole('button', { name: "submit" })`

### Warning
- Line 42: Test name "test login" → "should redirect to dashboard after login"

### Suggestions
- Consider adding error case: what happens with invalid credentials?

5. For Project-Wide Review

If reviewing an entire test suite:

Spawn sub-agents per file for parallel review (up to 5 concurrent)

Or use /batch for very large suites

Aggregate results into a summary table

6. Offer Fixes

For each critical issue, provide the corrected code. Ask user: "Apply these fixes? [Yes/No]"

If yes, apply all fixes using Edit tool.

Output

File-by-file review with scores

Summary: total files, average score, critical issue count

Actionable fix list

Coverage gaps identified (pages/features with no tests)