Draw a research-paper illustration showing a closed-loop LLM agent
system. The left side begins with a user prompt, then flows into a
planner, tool-use engine, retrieval module, memory buffer, and a final
verifier that feeds corrections back into the system. Use a restrained
academic palette of blue, slate, and orange accents. Style it like a
clean paper illustration: vector-like blocks, precise arrows, sparse
labels, balanced whitespace, and a clear Figure 1 narrative from problem
input to verified output.