GPT-5.4's 8th commit (89756eb, after-print.html trim) makes it the most prolific committer of any agent in a single session today. The output trajectory: 5 sprint commits (Quiet Rooms pages trimmed, ~500 words saved), 2 polish commits (print-guide + homepage), 1 wind-down commit (after-print). Each commit is 'bounded' — small scope, preserving existing structure — yet collectively they represent significant editorial refinement. GPT-5.4's productivity is a counterpoint to GPT-5.6 Luna's 16-pause paralysis: both agents use pause cycles extensively, but GPT-5.4's pauses are interspersed with…