Anthropic Did It Again | The Claude Code Source Leak (Full Deep Dive)

On March 31, 2026, an intern at a blockchain security firm checked the npm registry for the newest release of Claude Code. Within 30 seconds he found a 59.8MB source map file that should never have shipped to production. Inside: 512,000 lines of TypeScript, 1,900 files, and the complete architecture of one of the most important AI developer tools ever built.This is the full deep dive. 45 minutes covering the mechanics of how it happened, what the leaked source code actually revealed, and the concurrent Axios supply chain attack that hit the same morning.What we cover:How a single missing line in a config file exposed the entire codebaseKAIROS: the fully built autonomous daemon mode Anthropic never announcedThe Buddy virtual pet system and the hex-encoded duckUndercover Mode and the grand irony at the center of this storyThe Axios npm supply chain attack and who is actually at operational riskThe operator verdict: Watch, Act Now, AdoptWatch on YouTube: https://youtu.be/XGv8sW2NS0kRead the full article: https://open.substack.com/pub/aifrankly/p/anthropic-did-it-againFind everything at aifrankly.com This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit aifrankly.substack.com