Strengthen the >0 assertion into a structural one: with a rendered image, a
pointer, an input_text prompt, and a rewritten tool in the outgoing body, assert
outgoingTextChars (a) counts the instructions pointer + input_text parts + tool
name/description/parameters (>= their summed length, within the '\n\n' part
separators), and (b) stays well below the input_image base64 length — i.e. the
base64 is excluded from the regression denominator, as intended.
Danil Silantyev
6c14465ca4