So far, we’ve covered how to use agent tools, skills, and sub-agents. Now, it’s time to put everything into practice. I’m going to walk you through a small proof of concept (POC) project to show how these pieces actually work together.

In this small POC project, I built a simple DEV blog post writer using LangGraph multi-agents with memory and AWS Bedrock Nova models. The workflow starts by extracting keywords from a user prompt, researching related topics from DEV Community posts, and then generating a draft blog article . An evaluator agent reviews the output and provides feedback for refinement, creating a lightweight content improvement loop.

This is intentionally a POC rather than a production-grade or highly optimized blog-writing system. Alongside blog generation, the workflow also stores topic summaries in a memory.md file to retain useful context for future runs.…