A back-to-back run of 3+ adjacent tool calls now collapses into a
fixed-height window that pins the newest call to the bottom and fades
older ones up under a top gradient, so a long run no longer shoves the
reply off screen. Shorter runs are byte-identical to before, and the DOM
shape is the same in both modes (only classes flip) so crossing the
threshold mid-stream never remounts a row. Expanding any row breaks the
window out to full height via a `:has([data-tool-open])` rule.
Brooklyn Nicholson
f36cdd9a49