The scaffold follows thinking-machines-lab/tinker-cookbook nightly at commit:
2a7427c24a433b7dba8309c246bf5ce4f2420837
Relevant upstream files:
tinker_cookbook/recipes/harbor_rl/harbor_env.pytinker_cookbook/recipes/harbor_rl/harbor_tools.pytinker_cookbook/recipes/harbor_rl/train.pytinker_cookbook/tool_use/agent_tool_message_env.py
The dependency is commit-pinned so later nightly changes cannot silently alter an experiment.