The "whatever is needed" sentence is the real finding here, and I'd go a step further: the day-one scope prompt could also include a stop condition that's checked mechanically, not just stated. For example, a fixed budget of subagents or wall-clock hours per phase, after which the agent must stop and report rather than propose another revision. A related suggestion is to make the agent rank findings by cost-to-fix versus severity before designing anything, so the three Medium host findings and the absolute_redirect off; fix land first. One question: since each campaign was bound to an exact artifact, did you consider a cheaper tier of evidence (a smoke subset of the 247 cases) for revisions that only touch files unrelated to the failure paths?