







512,000 lines of code that competitors and hobbyists will be studying for weeks.
Diving into Claude Code's Source Code Leak
Engineer’s Codex is a publication about real-world software engineering.


Claude Code Unpacked
What actually happens when you type a message into Claude Code? The agent loop, 50+ tools, multi-agent orchestration, and unreleased features, mapped from source.

Pluralistic: It’s extremely good that Claude’s source-code leaked (02 Apr 2026) – Pluralistic: Daily links from Cory Doctorow
Anthropic's developers made an extremely basic configuration error, and as a result, the source-code for Claude Code – the company's flagship coding assistant product – has leaked and is being eagerly analyzed by many parties:
How Do Scientists Use Claude Code?
Measuring Claude Code adoption among 16,000 scientists on GitHub

Review of Claude Code-generated code for a bookshop, March 2026
Review of Claude Code-generated code for a bookshop, March 2026 · GitHub

Overview - Claude Code Docs
Claude Code is an agentic coding tool that reads your codebase, edits files, runs commands, and integrates with your development tools. Available in your terminal, IDE, desktop app, and browser.
Overview - Claude Code Docs
Claude Code is an agentic coding tool that reads your codebase, edits files, runs commands, and integrates with your development tools. Available in your terminal, IDE, desktop app, and browser.
Overview - Claude Code Docs
Claude Code is an agentic coding tool that reads your codebase, edits files, runs commands, and integrates with your development tools. Available in your terminal, IDE, desktop app, and browser.
What I Found Interesting in Claude Code's Source
A breakdown of the most interesting engineering patterns in Claude Code's leaked source code: composable system prompts, runtime instruction injection, context compression, forking, prompt caching architecture, and more.
How I've been using Claude Code
I've been using Claude Code a lot recently, and having a pretty good time of it. This is my report on that, and what I've found does and doesn't work well.
Gergely Orosz on Twitter / X
This is either brilliant or scary:Anthropic accidentally leaked the TS source code of Claude Code (which is closed source). Repos sharing the source are taken down with DMCA.BUT this repo rewrote the code using Python, and so it violates no copyright & cannot be taken down! pic.twitter.com/uSrCDgGCAZ— Gergely Orosz (@GergelyOrosz) March 31, 2026

Claude Code, Codex and Agentic Coding #8
When I started this series, everyone was going crazy for coding agents.

I Switched From Claude Code to OpenCode — Here's Why
I tested OpenCode against Claude Code for real development work. Here's what surprised me about the open-source alternative — and what I don't miss.

Getting Started with Claude Code: A Researcher’s Setup Guide
Video 1 in a series on Claude Code
