Upload a zip of your submission directory: one prediction-table CSV per task
(named <dataset>__<task>.csv) plus a metadata.yaml
describing your method. It is validated instantly against the official test tables — a
leaderboard (classification / regression / recommendation) is scored only when every
task in it is present and valid, and your metadata must give a name, type, and contact email. On success a pull
request is opened for maintainer review; your entry appears once it is merged. Validate
locally first with python -m relbench.leaderboard <dir> — see the
submission guide.