Building a tool that builds persistent map of your codebase for AI agents (OSS)

Reddit r/AI_Agents 05/31/26, 02:58 PM Tools

open-source ai-agents codebase-mapping domain-map mcp local-first mit-licensed

Summary

Carto is an open-source tool that builds a persistent domain map of a codebase, helping AI agents understand systems and avoid failures like wrong file editing and context overflow, running entirely locally with no data leaks.

The problem : AI agents fail systematically above 10k LOC. The failure mode are same wrong file, partial completion, tool thrashing, context overflow. Carto fixes this by giving AI agents what they are missing - Domain Map (automatic, no config), blast radius before any change, cross domain violation detection, Agents md for instant codebase context, 16+ mcp tools etc. AI knowing what could break before it start editing code, coz today it feels like most tools are focus on generating code faster and maybe the next step is helping AI understand systems better. MIT licensed , Runs entirely local , No data leaks. Tested on codebase like VScode, prisma, zed and more ( having over 10k+ files) There is so much more things that can be done with this coz this thing i made is not just related to programming languages if you u see it u can use it to parse many more types of works. If you have any questions or patterns or ideas lets discuss.

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