Although I would actually make a distinction here—“negotiates well with similar agents” is just about your counterfactuals, so commitment theory / updatelessness is not necessary for it. e.g. updateful CDT with logical counterfactuals and updateful EDT both are able to handle that. So you can just use normal academic EDT.
Negotiating with your future/past self, that’s where it gets thorny. That’s what you need commitment theory / updatelessness for.
Although I would actually make a distinction here—“negotiates well with similar agents” is just about your counterfactuals, so commitment theory / updatelessness is not necessary for it. e.g. updateful CDT with logical counterfactuals and updateful EDT both are able to handle that. So you can just use normal academic EDT.
Negotiating with your future/past self, that’s where it gets thorny. That’s what you need commitment theory / updatelessness for.