A framework and goals for FCC-hh physics studies at Snowmass 2021

We summarize the key results obtained by physics studies carried out for the FCC-hh Conceptual Design Report, documenting the existing tools and software framework that were developed. Indications are provided for further work, on physics performance and simulation software development, which could be a target for Snowmass 2021 studies of a pp collider at 100~TeV. The primary goal of this note is to inform about, and document, the existing resources, to encourage coordination and collaboration building on the work already done.