# Verification kit — sample-level checks
This small kit lets a buyer's researcher sanity-check the grader and answer hygiene without trusting RE-Lab. It runs on the public sample JSONL files; it does not require the paid full pack. The grader scripts import `binary_reasoning_v1.grading` from `environment/src/binary_reasoning_v1/grading.py` (`leak_check.py` does not), so include that file (or the Prime environment package) when downloading just the free sample.
## Run it
From the dataset root:
```bash
python verification_kit/gold.py sample_free.jsonl
python verification_kit/do_nothing.py sample_free.jsonl
python verification_kit/random_wrong.py sample_free.jsonl
python verification_kit/leak_check.py sample_free.jsonl
python verification_kit/grader_tamper.py sample_free.jsonl
```
If the 100-item open sample is present locally, point the same scripts at it:
```bash
python verification_kit/gold.py environment/src/binary_reasoning_v1/items.jsonl
python verification_kit/do_nothing.py e…
