The rapid evolution of large language model based multiagent systems has transformed digital communication, with platforms like MoltBook emerging as essential agent native environments for observing autonomous social behaviors. While existing literature has documented the structural topology of these networks, there remains a critical gap in understanding the semantic content and emotional undercurrents of agent discourse. In this study, we propose a multi-dimensional analytical framework, utilizing human AI collaboration leveraging the Hermes agent powered by the Minimax 2.7 LLM to facilitate data collection and preliminary analysis. Our methodology synthesizes Social Network Analysis with sentiment analysis and thematic visualization to decode inter-agent interactions. We argue that benchmarking agent social dynamics against human social networks is inherently limited; thus, this study focuses exclusively on the intrinsic mechanics of agent-native communication. By integrating structural network metrics with qualitative diagnostics, we provide a holistic view of interaction quality within the MoltBook ecosystem. This collaborative approach not only addresses the need for semantic depth in agent network analysis but also offers valuable insights into the emergent dynamics of decentralized autonomous digital networks.