Entire Claude Code CLI source code leaks thanks to exposed map file

The entire source code for Anthropic's Claude Code command line interface application (not the models themselves) has been leaked and disseminated, apparently thanks to a serious internal error. The leak gives competitors and armchair enthusiasts a detailed blueprint for how Claude Code works—a significant setback for a company that has seen explosive user growth and industry impact over the past several months.

Early this morning, Anthropic published version 2.1.88 of Claude Code npm package—but...