FaMA: LLM-Empowered Agentic Assistant for Consumer-to-Consumer Marketplace

• URL: http://arxiv.org/abs/2509.03890v1
• Date: Thu, 04 Sep 2025 05:22:25 GMT
• Title: FaMA: LLM-Empowered Agentic Assistant for Consumer-to-Consumer Marketplace
• Authors: Yineng Yan, Xidong Wang, Jin Seng Cheng, Ran Hu, Wentao Guan, Nahid Farahmand, Hengte Lin, Yue Li,
• Abstract summary: E-commerce platforms often require users to navigate complex Graphical User Interfaces (GUIs)<n>This paper introduces a novel approach to simplify these interactions through an LLM-powered agentic assistant.<n>We present the architecture for Facebook Marketplace Assistant (FaMA), arguing that this agentic, conversational paradigm provides a lightweight and more accessible alternative to traditional app interfaces.
• Score: 5.222354399544796
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: The emergence of agentic AI, powered by Large Language Models (LLMs), marks a paradigm shift from reactive generative systems to proactive, goal-oriented autonomous agents capable of sophisticated planning, memory, and tool use. This evolution presents a novel opportunity to address long-standing challenges in complex digital environments. Core tasks on Consumer-to-Consumer (C2C) e-commerce platforms often require users to navigate complex Graphical User Interfaces (GUIs), making the experience time-consuming for both buyers and sellers. This paper introduces a novel approach to simplify these interactions through an LLM-powered agentic assistant. This agent functions as a new, conversational entry point to the marketplace, shifting the primary interaction model from a complex GUI to an intuitive AI agent. By interpreting natural language commands, the agent automates key high-friction workflows. For sellers, this includes simplified updating and renewal of listings, and the ability to send bulk messages. For buyers, the agent facilitates a more efficient product discovery process through conversational search. We present the architecture for Facebook Marketplace Assistant (FaMA), arguing that this agentic, conversational paradigm provides a lightweight and more accessible alternative to traditional app interfaces, allowing users to manage their marketplace activities with greater efficiency. Experiments show FaMA achieves a 98% task success rate on solving complex tasks on the marketplace and enables up to a 2x speedup on interaction time.

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