# `data/sven_rl_buckets/` — SVEN RL length buckets

Produced by `scripts/convert_sven_to_dream_jsonl.py` (and similar), splitting SVEN examples by **target generation length** so RL rollout can set per-bucket `max_new_tokens` / `steps`.

## Layout

```
train/
  1_128.jsonl
  128_256.jsonl
  256_512.jsonl
  512_inf.jsonl   # or similar; 512+ tokens
val/
  (same pattern)
```

`rl_sven.py` and config keys `dataset.sven_train_subset_dir`, `dataset.sven_train_subset_files` point here; semantics mirror `python_splits` bucketing.