task_categories:text-generation task_categories:text-classification language:en language:multilingual license:mit size_categories:1M<n<10M format:parquet modality:tabular modality:text library:datasets library:pandas library:polars library:mlcroissant arxiv:2602.14299 region:us multi-agent social-network llm-agents computational-social-science online-communities moltbook socialization ai-society