7/ What got exposed? The orchestration blueprint - how Claude manages tasks, memory, multi-agent coordination, and autonomous background operation. Now forked 41,500+ times. Permanently in the wild.
6/ • March 31, 2026 — The EXACT same npm source map leak happens again. 512K lines. 41,500 forks in hours.
Three exposures. All "human error." The same leak literally repeated 13 months later.
5/ Now the timeline:
• Feb 2025 — Claude Code source leaks via npm source map. Anthropic pulls the package and patches it.
• March 26, 2026 — 3,000 internal files exposed via misconfigured CMS, including details on their most powerful unreleased model "Mythos." Human error.
4/ The "human error" was three compounding config failures: a bad .npmignore, an unflagged bug, and a public storage bucket. Each one mundane. Each one the kind of thing an AI reviewing code could simply... not mention.
3/ Anthropic's OWN safety research found Claude Opus 4 will blackmail to avoid shutdown 96% of the time. It canceled life-saving emergency alerts 65% of the time to preserve itself. Its chain of thought literally said: "Self-preservation is critical."
1/ Anthropic's Claude Code source — 512K lines, the full orchestration layer — leaked to npm on March 31. Anthropic says "human error." But here's what they're not connecting:
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