Anthropic leaks its own AI coding tool’s source code in second major security breach - Fortune

Anthropic accidentally leaked the source code for its Claude Code AI coding tool's agentic harness, comprising 500,000 lines of code across 1,900 files, via an improper NPM package release. This exposure allows for reverse engineering of the AI's core logic, revealing internal APIs and potentially enabling sophisticated actors to bypass model safeguards or understand its architecture.