CodeTrain documentation

Everything published about how CodeTrain works, in one place. Pick the section that matches what you are doing.

Using the product

The homepage runs a real lesson in the browser with no account. It is the fastest way to see what a step looks like and what happens when your code does not pass.
The course catalog lists every curated course and class. These are the starting point rather than the product: the tutor writes a lesson on any topic you name, or on any public repository you paste.
How the Socratic method works here is the exact contract the tutor keeps, quoted from the code that enforces it.
Learning an unfamiliar codebase covers repo mode and what it refuses to read.

Developer API: the public REST endpoints, rate-limit headers, the versioning policy, and how to install the command line tool.
/llms.txt: when to reach for CodeTrain, and every page as markdown. Read this first if you are an agent.
Any page on this site serves markdown to a client that asks for it with Accept: text/markdown.

Security and data handling: where your code goes, what is stored, and how to report a vulnerability.
Privacy policy: what we collect and how to have it deleted.
Terms of service.
About CodeTrain and how to reach a person.

Changelog: what shipped and when, newest first.
Roadmap: what is being built, what is next, and what we are still thinking about. Shipped items link to the changelog entry that proves it.
Comparisons: how CodeTrain differs from coding assistants, AI course builders, chatbot study modes and traditional course platforms.
Conductor Network: the referral programme and how payouts work.