---
configs:
- config_name: episodes
  data_files: episodes/*.parquet
---
# Checkpoint monitoring trajectories

Each complete episode row links to immutable transition tables and lossless PNG
chunks. The episode index retains Run, training seed, Checkpoint, evaluation,
episode conditions, actions, rewards, boundaries and source/runtime provenance.
Frames are full unmasked native RGB at the contracted action cadence. Chunk joins
preserve the initial and true terminal image without duplicated transitions.
Staged chunks without a complete episode index are not dataset episodes.

Monitoring is observational and never Acceptance evidence. Use whole-Run or
training-seed-group holdouts to avoid leakage across correlated Checkpoints;
split assignment is left to consumers. R2 sources remain canonical.