So Claude Code's Source Code Was Just Leaked...

Claude Code's npm package accidentally included a source map file that exposed the entire TypeScript source code, downloadable from Anthropic's own R2 storage bucket. The leak was caused by a missing *.map entry in the .npmignore file. Anthropic has been issuing DMCA takedowns against GitHub mirrors. The leaked code reveals several unreleased features: 'Kairos' (an always-on background assistant), coordinator mode (multi-agent orchestration), ultra plan mode (30-minute remote planning sessions), a dream system for memory consolidation, anti-distillation measures that inject fake tool definitions to mislead competitors, and an internal 'undercover mode' designed to prevent Anthropic employees from leaking internal info — ironically exposed by the very leak it was meant to prevent. The post also covers internal code names for Claude models, fun details like 187 spinner verbs, a Tamagotchi-style buddy system, and commentary on Anthropic's poor public relations around the incident.