Research notebook skills for durable, file-based work across researchers, coding agents, compute systems, and sessions.\n\nIncludes:\n- research-lab-notebook for experiments, findings, plans, claims, publication tracking, human review gates, and processed-job handling;\n- download-research-references for archiving cited open-access papers and source material;\n- an end-to-end gradient-accumulation example; and\n- validators and tests for the public notebook contract.