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Show HN: ChunkHound, a local-first tool for understanding large codebases(github.com)
60 points by NadavBenItzhak 8 hours ago | 14 comments

ChunkHound’s goal is simple: local-first codebase intelligence that helps you pull deep, core-dev-level insights on demand, generate always-up-to-date docs, and scale from small repos to enterprise monorepos — while staying free + open source and provider-agnostic (VoyageAI / OpenAI / Qwen3, Anthropic / OpenAI / Gemini / Grok, and more).

I’d love your feedback — and if you have, thank you for being part of the journey!

goda90 3 hours ago | parent | next [-]

A few years ago I set out to refactor some of my team's code that I wasn't particularly familiar with, but we wanted to modularize and re-use in more places. The primary file alone was 18k+ lines of Typescript that was a terrible mess of spaghetti. Most of it had been written in JavaScript but later converted haphazardly. I ended up writing myself a little app that used the Typescript compiler APIs to help me just explore all the many branches of the code and annotate how I would refactor different parts. It helped a bit, but I never got time to add some of the more intelligent features I wanted like finding every execution path between two points.

henryhale an hour ago | parent [-]

give depgraph a try - https://github.com/henryhale/depgraph - i'd like to learn about how i could improve it.

henryhale an hour ago | parent | prev | next [-]

I have been working on depgraph (https://github.com/henryhale/depgraph) for a while now. It is truly local with several output options(json, mermaid, jsoncanvas). Mutliple languages are supported (js, go, c) - expanding the list slowly but sure.

dmos62 22 minutes ago | parent | prev | next [-]

Will try this out. Was always envious of how Augment was able to do this. Kudos.

dcreater 4 hours ago | parent | prev | next [-]

you say "local-first" but have placed voyage API for embeddings as the default (had to go to the website and dig to find that you can infact use local embedding models). Please fix

apgwoz 3 hours ago | parent | prev | next [-]

Perhaps I am missing something, but this seems to require a Lemon (LLM)? Is the idea that the Lemon is used to help build an index AOT that can be queried locally, after?

I want to figure out how to build advanced tools, potentially by leveraging Lemons to iterate quickly, that allow us all to rely _less_ on Lemons, but still get 10,20,30x efficiency gains when building software, without needing to battle the ethics of it all.

conception an hour ago | parent | prev | next [-]

I have chunckhound is a few projects and it’s noted in both the agent md file as well as mcp and claude never uses it. Ever. Never once.

Is there a prompt special sauce y’all use to get it to use it?

Neywiny 5 hours ago | parent | prev | next [-]

Might give this a try to experiment if it's really free to use (I'll have to read up on that I guess). The qemu codebase is huge and every contributer seems to solve problems in slightly different ways. Would be nice if this tool could help distill it.

dogman123 5 hours ago | parent | prev | next [-]

Is there a way to have the model inside of codex to make use of chunkhound instead of its “built in” search/explore functionality with rg? Whenever I spin up a new agent using xhigh thinking it spins its wheels for a while to get up to speed — wondering if chunkhound can make this process faster.

CamperBob2 2 hours ago | parent | prev | next [-]

Looks like the tutorial link is broken.

bravura 4 hours ago | parent | prev [-]

Can you please expose the functionality as a self-documenting CLI command with machine readable output? (Or did I misunderstand that MCP isn't the only way to use it?)

I am curious to try it but do not want to adopt MCP servers.

Telling Claude to call the CLI tool is more efficient.

blackqueeriroh 2 hours ago | parent | next [-]

Am I confused or is this not an open-source project on GitHub?

You have every ability to make these modifications yourself; is there a reason you feel the need to require the creator to do so?

from_memory an hour ago | parent [-]

I think the term is "Instrumentalism".

dcreater 4 hours ago | parent | prev [-]

Agree. And to make the CLI usage more effective/efficient, if you can publish a skill that would be excellent