'Claude Code Unpacked' analyzes the entire mechanism of Claude Code from leaked code and presents its previously unknown features in an easy-to-understand format, directly mapping unreleased features from the source code.
The 'Claude Code Unpacked ' project has been launched to analyze and study the source code of Anthropic's AI coding agent 'Claude Code,' which was
Claude Code Unpacked
https://ccunpacked.dev/
This site allows you to examine the structure and implementation details of core source code, such as 'QueryEngine.ts,' which controls interaction with large-scale language models (LLMs) and tool execution, and 'Tool.ts,' which forms the basis of various tools.
In Claude Code, the LLM (Lawyer-Led Machine) thinks in response to user instructions, selects and executes the necessary tools, and then incorporates the results back into its thinking process—a series of iterative processes. 'The Agent Loop' visually explains this execution cycle that underpins Claude Code's autonomous operation.
Furthermore, 'Architecture Explorer' serves as a guide and tool for visually understanding and navigating the massive Claude Code source code, which comprises over 512,000 lines, within ccunpacked.dev and related research projects.
For example, try clicking 'commands/' from the color tiles in Architecture Explorer.
Then, a link to
The source code for commands/ was displayed.
In 'Tool Systems,' all the built-in tools that Claude Code can call are categorized and organized by their function. Clicking on an item displays details about the tool and a link to its source code.
This page lists the slash commands available in the Command Catalog.
Furthermore, the development-in-progress features and hidden features revealed through the analysis of the leaked source code can be checked in 'Hidden Features'.
The features revealed in this article are also summarized in the following article.
What is the Anthropic development project revealed by the Claude Code source code leak? - GIGAZINE
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