Claude Code 510,000 lines of source code leaked, and over a dozen backup repositories appeared on GitHub overnight, with the highest star count reaching 118,000.

The Chinese developer community is celebrating collectively—disassembling architecture, digging into hidden features, and hunting for feature flags.
But the most counterintuitive reaction is from Anthropic:
The npm package was not removed. No emergency public relations. Chief Business Officer Paul Smith said, "absolutely not breaches or hacks"—it's not a security incident, it's a process issue.
Compare this: if Tesla's autonomous driving source code were leaked, would Elon Musk just say "process issue" and that's it?
Anthropic remains so calm because they know well: the competitiveness of Claude Code has never been in those 510,000 lines of TypeScript. The harness is the shell, the model is the soul. You get the shell, but you can't fit that soul inside.
Those forks on GitHub already prove it—most of what they're doing is "how to bypass the Anthropic API and run it," not "how to build a better product with this architecture."
Developers think that by getting the source code, they've obtained Claude Code. Anthropic knows they only have the manual.