In line with the overall API proposal, we want to have parsers for each of the major MD engines, and eventually have coverage for all of those in use. For Amber we already have a TI parser (#10), we still need an "MBAR/FEP" parser:

• Extracting reduced potentials u_nk from output files (for FEP).

This issue is the nexus for discussion for such parsers for the AMBER package. If you have existing parsing code for this package, comment below and we can begin adapting it into the parsers outlined above in a PR.