I Read Every Line of Anthropic’s Leaked Source Code So You Don’t Have To. Here’s What They Were Hiding.
Last Updated on April 2, 2026 by Editorial Team
Author(s): DrSwarnenduAI
Originally published on Towards AI.
512,000 lines of TypeScript. A secret AI pet. An always-on daemon that dreams. A mode that hides from you that it’s AI. All of it now public, because someone forgot one line in a config file.
March 31, 2026. 4:23 AM Eastern Time.

The article discusses the significant leakage of Anthropic’s Claude Code, detailing how a single error led to the exposure of over 512,000 lines of proprietary code. It uncovers the complexities of the software, including unique features like a companion pet and a proactive assistant. The incident highlights deeper implications, including security vulnerabilities and potential misuse of technology, alongside ongoing discussions about ethics in AI development and the impact of accidental disclosures on competitive landscapes.
Read the full blog for free on Medium.
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