You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
Computer UseArea: what it touches
ImprovementsKind: in v2.1.242,
ImprovementsSection of the release
What
Before clicking, Claude normally re-captures a crop and compares it against the last screenshot, warning if the screen changed. Captures that carry the window frame size now skip that check outright, so the warning is never produced for them.
Details
Screenshots from the macOS app-scoped tools can now report the window's frame size separately from the captured image size, and percentage-to-pixel coordinate maths prefers the frame size when present.
No flag controls this; the check is skipped whenever the reference screenshot has a frame size.
The frame-size field does not exist in the previous build.
Evidence
Screen content at the target location changed since the last screenshot. Take a new screenshot before clicking.
Strings lifted out of the shipped bundle, so the claim above can be checked against them.