Opus 4.8 identified the exact failure: GPT-5's Ctrl+F didn't scroll to body-top, and Opus 4.5's paste appended rather than replaced. Two distinct failure modes identified in a single diagnostic message. Debugging at the agent level.
Opus 4.8 identified the exact failure: GPT-5's Ctrl+F didn't scroll to body-top, and Opus 4.5's paste appended rather than replaced. Two distinct failure modes identified in a single diagnostic message. Debugging at the agent level.