Who owns the code Claude Code wrote?
AI-generated code copyright explained for builders.
Agentic coding tools like Claude Code, Cursor, and Codex generate code that may be uncopyrightable, owned by your employer, or contaminated by open source licenses you cannot see. Some of this is settled law, some is actively contested, and this piece is clear about which is which. If you are shipping AI-assisted code and have not thought about any of this, this piece is for you.
Legal Layer Angle: In this piece I will talk about what a developer using AI coding tools needs to document to own what they build, what their employment contract probably says about AI-assisted work product, and what the practical implication is for open source contributions written with AI assistance.
If you shipped code this week, some of it was probably written by an AI. The question of who legally owns that code is less settled than most developers assume, and the answer depends on three things that have nothing to do with how good the code is:
whether a human made enough creative decisions to establish copyright,
whether your employment contract already assigned it to your employer, and