# Contributing

DCO required. Every commit must include:

```
Signed-off-by: Lutar, Stephen P. <stephenlutar2@gmail.com>
```

SSH-signed commits preferred (`szl_codex_signing_ed25519`).

Fail-closed honesty: do not invent LIVE, PROVED, MEASURED, or a Λ theorem.
Do not overwrite `SZLHOLDINGS/SZL-Khipu-1.5B-BrainNavigator`.
Train only synthetic routing over the public 575-chunk handles.
Raw 9464-node graph admitted to gradients = 0.

```
python train/build_curriculum.py
python train/eval_navigator.py
pytest -q
```