cursor-rules

Playwright E2E Rules

Full guidance: read .agents/skills/playwright-e2e/SKILL.md and follow its decision tree before {{#if HAS_TEMPLATES}}planning, generating, reviewing or debugging{{else}}writing, reviewing or debugging{{/if}} tests.

MUST

• Use web-first assertions (await expect(locator).toBeVisible())
• Use named timeout constants, not hardcoded numbers
• Wrap page object methods in test.step()
• Keep locators as readonly class properties on page objects
• Use short inner timeouts inside toPass blocks
• Clean up test resources in afterEach hooks
• Tag tests with { tag: ['@smoke'] } options, not in the title
• Give every absence assertion (toBeHidden(), toHaveCount(0)) a presence anchor — prove the same locator matched first

WON'T

• Use XPath selectors
• Use page.waitForTimeout() for synchronization
• Use { force: true } on actions
• Use networkidle in goto() or waitForLoadState()
• Use deprecated APIs (waitForNavigation, page.$, locator.type())
• Write custom retry/polling loops (use toPass() or expect.poll())
• Use page.evaluate() as a workaround for missing locators

Working method

• Explore before generate — resolve every selector against a real page, never from source
• Below 5, emit no plan — a low confidence score means keep exploring, not caveat the proposal
• A skeleton counts as a placeholder — TODOs and empty methods are not deliverables
• No substitute exploration — if playwright-cli is unavailable, stop and say so
• Stop before applying — emit the plan, wait for approval

Selector Priority

1. getByRole() > 2. getByLabel() > 3. getByText() / getByPlaceholder() / getByAltText() > 4. getByTestId() > 5. CSS selector

Browser automation

Use the official playwright-cli skill (install with npx playwright cli install --skills=agents){{#if HAS_PLAYWRIGHT_159}}; debug failing tests with npx playwright test --debug=cli and playwright-cli attach as described in .agents/skills/playwright-e2e/references/agent-debugging.md{{/if}}.