Auth And Isolation Defaults

Pack: playwright Parent skill: Playwright Auth Projects And Isolation Source: playwright/playwright-auth-projects-and-isolation/references/auth-and-isolation-defaults.md Default auth reuse:

1. create a setup project
2. authenticate once per role
3. store state
4. consume that state in dependent projects

Default rule:

• optimize away repeated login
• do not optimize away test isolation

When to keep login inside the test:

• the login journey is the actual subject
• permissions depend on fresh interactive auth behavior

Role strategy:

• one state per materially different role
• do not conflate “can sign in” with “same effective app surface”