Want Built a React-style looping agent with small LLMs (Qwen 3.5 9B / Gemma4) + LangGraph?

Currently experimenting with building a React-style looping agent system using small LLMs like Qwen 3.5 9B and Gemma 4 (E2B), and I wanted to ask if anyone here has worked on something similar. Current setup: Using LangGraph Around 5 tools available to the agent Input includes both instructions and images Agent runs in a loop where one tool’s output may become another tool’s input Planning to later extend this into a multi-agent system with 2 subagents Right now I’m only testing a single-agent workflow before moving to multi-agent orchestration.