July first-week open AI toolchain cluster: Anthropic two-angle + HF three-cloud + transformers 8 models + ExecuTorch export

Bind the 7/2-7/7 open AI toolchain cluster into one narrative: 7/3 transformers v5.13.0 (8 new models + HfExporters); 7/6 Anthropic features (Claude Code origin + positioning) + Alberta government case (466M lines / 20 hours / 50 agents); 7/7 HF three-cloud (SageMaker / Foundry / SkyPilot). Five same-week releases all point to the same direction: how open-weight models cross from the Hub to any cloud + any agent framework + any export target.