Will my source code or customer data leak to OpenAI / Anthropic?

No. Claude Code runs locally on my machine inside your private repo. Anthropic’s commercial API (Claude Pro / Team / API plan) does not train on your inputs, that’s contractual under their Commercial Terms. We sign your NDA on day 0, route Claude through Anthropic’s zero-data-retention endpoint (anthropic-version: 2023-06-01 with retention disabled), and never expose customer PII or order data. The codebase stays in your VCS, nothing leaves except git pushes you approve.