PrepBench code is released under the MIT License in LICENSE.
Benchmark cases are derived from public Preppin' Data challenge materials. The
per-case source challenge links are recorded in data/case_links.txt. Keep this
source attribution with redistributed benchmark copies, and check the upstream
source terms before redistributing the original challenge materials outside
PrepBench benchmark use.
Ground-truth outputs and reference solutions are included to make the evaluator, release checks, and local user simulator reproducible. They are answer artifacts and must not be used as model input or submission assistance for leaderboard evaluation.