Crux
Ten thousand stars · Crux draws the lines

Understand the code you ship.

Short interactive courses from your real repository, and proof your team understands what shipped.

Connect a repository

✦ 2 min · 5 blocks · scroll, the course paces itself

design_intent01 / 05

The comprehension gap

AI assisted coding broke the old balance between writing and reading code. Reviews get shallower, onboarding gets slower, and ownership quietly erodes. The code works, but the understanding behind it is gone.

Pull requests merge that no one on the team can fully explain.

node_graph02 / 05

The architecture map

routes/api.tslib/types.tsgenerate.tsextract.tsgrade.tsllm.ts

an explorable import graph of your real modules, extracted from the code, never hallucinated

design partners · 5 seats04 / 05

Help us build it as a design partner

We're onboarding five teamsto shape Crux before launch. It's a two-way deal, stated plainly:

you get

Free access through the beta and 12 months after launch, founder level onboarding and support, roadmap influence. Your stack gets graph support next, and founding partner pricing, locked.

we ask

One real repository, three or more developers using it for four to six weeks, and two 30 minute feedback calls. That's the whole commitment.

no spam · we reply personally
quiz · scenario_mcq05 / 05

Your turn: one question

You just read this course. Prove it.

Where does Crux get the architecture map?

recall block 02 · graded in your browser
Verified

You finished the course.

That took two minutes. Now imagine it for your codebase: connect a repository and see your first courses generate.

Get started with Crux
Crux crux · understand the code you shipget started · contact: hello@crux.dev