How a code graph saves 80% of your AI tokens

Your AI coding assistant is spending most of its tokens just searching through your files. What if there was a smarter way? In this episode, Romain sits down with Davide de Sio, Head of Software Engineering at Eleva and AWS Community Builder, to discuss KiroGraph — a 100% local semantic code knowledge graph that turns your codebase into a queryable graph structure, dramatically reducing AI tool calls and token usage. 🔑 Key topics covered: Why AI agents waste tokens on file search (and how a code graph fixes it) Tree-sitter: the AST technology powering KiroGraph's code understanding The Architecture module: preventing AI-induced architecture drift The Security module: detecting exposed API keys and vulnerabilities in the graph Watchman: auto-generating Kiro skills from repetitive developer patterns Running everything locally with Nomic embeddings and Gemma 3 (no cloud dependency) Portability: carrying your code graph across machines via Git Future: CI/CD integration, validation loops with hooks, and container deployment ⏱️ Timestamps: 00:00 - Introduction & Davide's background 02:50 - What is KiroGraph and why he built it 06:24 - How token/credit consumption works in Kiro 08:25 - Code graphs vs. file search: a smarter approach 09:41 - Tree-sitter and AST-based graph generation 11:23 - "Building for Kiro with Kiro" — the inception story 12:12 - Architecture module deep-dive 18:28 - How KiroGraph wires into Kiro (hooks, steerings, skills) 22:47 - Validation loops with hooks (spoiler: new module coming) 25:12 - Persistent memory & the Watchman module 27:33 - Why everything runs 100% locally 30:00 - Cross-platform support and community contributions 32:00 - Local models: Nomic for embeddings, Gemma for summarization 35:40 - The hybrid future: local + cloud AI 37:21 - Security module & Caveman integration 43:52 - Portability between machines 47:52 - What's next: community-driven roadmap 54:51 - Token savings data: up to 80% credit reduction 59:12 - Closing: community-driven development & AWS Summit story 🔗 Resources mentioned: KiroGraph (GitHub): https://github.com/davide-desio-eleva... Kiro IDE: https://kiro.dev Tree-sitter: https://github.com/tree-sitter/tree-s... Nomic Embed (Hugging Face): https://huggingface.co/nomic-ai/nomic... AWS Community Builders: https://aws.amazon.com/developer/comm... Davide's blog post: https://devs.30tools.com/aws-builders... 👤 About the guest: Davide de Sio is Head of Software Engineering at Eleva, based near Milan, Italy. He's an AWS Community Builder specializing in serverless architectures and the creator of KiroGraph. LinkedIn:   / desiodavide   🎙️ About the AWS Developers Podcast: Weekly conversations about Agentic AI and the future of software development with customers, AWS community members, and industry luminaries. Hosted by Romain Jourdan. 📩 Subscribe & Follow: