Use Playwright’s public noDefaults connection option and keep temporary focus under the selected page’s existing environment owner. Preserve unrelated page media and avoid creating a bootstrap target or retrying a failed handshake.
Extend real CLI/MCP environment verification with an independently observed unselected page and stable page inventory. Cover late focus acquisition and cleanup retry; retain verified upstream license notices for the required SDK upgrade.
Assisted-by: Kogasa (gensokyo-skills:kogasa-surprise-testing)