Source notes

Read 2026-09-27.

Playwright handles: a handle refers to a particular node; it does not guarantee that the node still means the same thing. The executor therefore rechecks attachment, semantics and state before using the handle. Timing races remain possible.
Mind2Web dataset card: declares CC BY 4.0 and describes research-purpose collection/release. The local hf datasets info osunlp/Mind2Web --expand cardData --format json returned license: cc-by-4.0. A pinned 28 MB JSON shard was downloaded for an offline diagnostic; none has been used in training. Any training ingestion must retain attribution and review privacy, source-site restrictions and the card's intended-use language; metadata alone is not a full dataset audit.

No model architecture is selected as final and no superiority claim is supported.

Hugging Face framework integration: the custom models use PyTorchModelHubMixin for local safetensors/config save/load.
PyTorch dynamic quantization: the comparison harness applies dynamic INT8 to Linear layers only. This is a measured compatibility baseline; the legacy API may require migration later.