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Show HN: Codeflowmap – map a codebase's read/write/auth data flows

A developer released Codeflowmap, an open-source tool that maps a codebase's dependency and call graph to surface read, write, and auth paths between files and functions. It can annotate files using local or remote AI models and output directly into an Obsidian vault, aiming to help developers understand LLM-generated code.

read1 min views1 publishedJun 20, 2026

I've been vibe-coding tools to automate chunks of my consulting work, fell down a rabbit hole, and started building actual products. Suddenly I'm in a world of unknown-unknowns and known-unknowns. One of the bigger things to solve was understanding code the LLM generated that I didn't fully grasp. What does it touch? What reads and writes where? Is the auth path where I think it is?

So I built codeflowmap. Point it at a repo and it maps the dependency and call graph, then surfaces the read / write / auth paths between files and functions.

Connect a local model (Ollama) or any OpenAI-compatible API and it annotates each file with what it does and the data it touches. It all runs locally unless you connect to a remote/hosted API, and the output links straight into an Obsidian vault.

bunx codeflowmap serve · MIT · built for me

Keen for thoughts on what would make it more useful or sharpen it up.

Comments URL: [https://news.ycombinator.com/item?id=48614229](https://news.ycombinator.com/item?id=48614229)

Points: 1

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