Saving panels replaces the whole list, so the spec's setup deleted every panel it had not created — and with it the credential of the screen on it. It now appends to the stored list and puts the original back in teardown, which also removes its own panel. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_013Gf7WaExcJ9bs3kfJXB3nK