The entire source code for Anthropic’s Claude Code command line interface application (not the models themselves) has been leaked and disseminated, apparently due to a serious internal error. The leak ...

The leak provides competitors—from established giants to nimble rivals like Cursor—a literal blueprint for how to build a high-agency, reliable, and commercially viable AI agent.

Oops. A 60MB source map file just leaked Anthropic's entire roadmap.

Anthropic has exposed Claude Code's source code, with a packaging error triggering a rapid chain reaction across GitHub and the developer community, letting them copy it entirely ...

A version of the AI coding tool in Anthropic's npm registry included a source map file, which leads to the full proprietary source code. An Anthropic employee accidentally exposed the entire ...

Anthropic just cannot keep a lid on its business. After details of a yet-to-be-announced model were revealed due to the company leaving unpublished drafts of documents and blog posts in a publicly ...

The incident has been described as one of the most significant code leaks in recent times, involving the exposure of Claude Code.

From a competition perspective, a source code leak is bad news for Anthropic because it could give rival AI companies and software developers rare insight into how it built the viral coding tool.