Summary of public notes regarding Claude Code source code

The veil has been lifted on Anthropic's Claude Code. Here is what we found in the 512k lines of leaked source code. A recent configuration error led to the exposure of nearly 1,900 TypeScript files, revealing the inner workings of one of the most powerful coding agents. From hidden experimental features like KAIROS and BUDDY to the sophisticated coordination of over 40 internal tools, the architecture is a masterclass in modern agentic design. Key technical takeaways: Runtime: Built on Bun with a React-based terminal interface. Scaling: A massive 30,000-token initial payload for high-precision tool execution. Privacy: An "Undercover Mode" that automatically scrubs AI metadata for employees. Caching: Intelligent static/dynamic prompt splitting to optimize cost and speed. This leak provides a rare glimpse into the future of LLM-driven engineering tools. While the caching bug discovered by the community has already been patched, the implications for agentic security and telemetry are profound. #LearnByDoingWithSteven #ClaudeCode #Anthropic #AIArchitecture #SoftwareEngineering #AgenticAI #TechNews #LLM #Coding #OpenSource All my links: https://linktr.ee/learnbydoingwithsteven