  As JWST begins to return observations, it is more important than ever that
exoplanet climate models can consistently and correctly predict the
observability of exoplanets, retrieval of their data, and interpretation of
planetary environments from that data. Model intercomparisons play a crucial
role in this context, especially now when few data are available to validate
model predictions. The CUISINES Working Group of NASA's Nexus for Exoplanet
System Science (NExSS) supports a systematic approach to evaluating the
performance of exoplanet models, and provides here a framework for conducting
community-organized exoplanet Model Intercomparison Projects (exoMIPs). The
CUISINES framework adapts Earth climate community practices specifically for
the needs of exoplanet researchers, encompassing a range of model types,
planetary targets, and parameter space studies. It is intended to help
researchers to work collectively, equitably, and openly toward common goals.
The CUISINES framework rests on five principles: 1) Define in advance what
research question(s) the exoMIP is intended to address. 2) Create an
experimental design that maximizes community participation, and advertise it
widely. 3) Plan a project timeline that allows all exoMIP members to
participate fully. 4) Generate data products from model output for direct
comparison to observations. 5) Create a data management plan that is workable
in the present and scalable for the future. Within the first years of its
existence, CUISINES is already providing logistical support to 10 exoMIPs, and
will continue to host annual workshops for further community feedback and
presentation of new exoMIP ideas.
