Gregor Zunic wrote that Browser Use used to send a predefined page state, and a cookie button could sit on screen without entering it. Closed shadow roots were the same miss. They moved observations to raw CDP. I read the post and Hermes #81958. I did not rerun the 204-run battery.

In Browser Use mode, the PR replaced twelve browser_* tools with one browser_exec. Opus 4.8: 18/18, 64,594 mean tokens to 25,934. I read current origin/main. browser_snapshot still returns an accessibility tree with @eN refs; browser_click still wants those refs. Empty browser.backend is Browser Use when the CLI is there, otherwise that tree. 18/18 is the exec arm, not a check that the tree contained the button.