KwaiAgents provides a modular agent framework (KAgentSys-Lite) for building information-seeking agents with LLMs, inspired by systems like BabyAGI and Auto-GPT. It includes fine-tuned models (KAgentLMs) trained using meta-agent tuning to acquire planning, reflection, and tool-use capabilities. The project also provides KAgentInstruct with over 200k agent-related instruction data and KAgentBench with over 3,000 evaluation samples for assessing agent performance.