GP has said that they can't do this, since they're unfamiliar with the language and that specific part of the codebase. Their best bet AIUI is (1) ask the AI agent to reverse engineer the diff into a high-level plan that they are qualified to evaluate and revise, if feasible, so that they can take ownership of it and make it part of the feature request, and (2) attach the AI-generated code diff to the feature req as a mere convenience, labeling it very clearly as completely unrevised AI slop that simply appears to address the problem.