Anthropic said on March 31 that it accidentally leaked internal source code for its popular artificial intelligence (AI) chatbot, Claude Code.
The leak stemmed from version 2.1.88 of the @anthropic-ai/claude-code package on the npm registry. It included a 59.8-megabyte source map file that exposed roughly 512,000 lines of unobfuscated TypeScript code across about 1,900 to 2,300 files, an Anthropic spokesperson said in a statement. The code quickly spread to GitHub repositories that have been copied tens of thousands of times.
