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The author built Agent DevTools, a local debugger for AI agents that inspects prompts, memory, retrieval, and tool calls, with LangChain support and a free Groq demo.
The author shares experience in using the open-source tool CodeGraph to build a local knowledge graph for a codebase, compares the differences between RAG and knowledge graphs, and demonstrates how the graph reduces tool calls by 94% and saves 35% on tokens, greatly improving development efficiency.