CowAgent is an open-source personal AI assistant and agent harness designed to plan tasks, operate tools, control computers and external services, build skills, and maintain long-term memory and knowledge. It can run continuously on a personal computer or server, supports major language-model providers, and connects to web interfaces and messaging channels such as Telegram, Slack, WeChat, Feishu, DingTalk, and others. The project combines planning, tool execution, multimodal input, browser use, scheduling, and MCP integrations in one extensible assistant.

A major focus of CowAgent is persistence and self-improvement. Its memory architecture can distill conversation history, retrieve information through keyword and vector search, maintain a structured personal knowledge base, and review past interactions to improve skills or follow up on unfinished work. Users can install community skills or create new ones through natural-language conversation, making CowAgent suitable for people who want a self-hosted assistant that evolves around their workflows rather than a stateless chat interface.