read.engineerscodex.com

www.shloked.com

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.

arstechnica.com

Entire Claude Code CLI source code leaks thanks to exposed map file

512,000 lines of code that competitors and hobbyists will be studying for weeks.

sourcegraph.com

Sourcegraph — Code Understanding, Oversight and Evolution

Give humans and agents complete context to understand, oversee, and evolve the world's largest, most complex codebases.

https://sourcegraph.com/ social preview image

thomas-wiegold.com

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.

https://thomas-wiegold.com/blog/i-switched-from-claude-code-to-opencode/ social preview image

docs.anthropic.com

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.

https://docs.anthropic.com/en/docs/claude-code/overview social preview image

sourcegraph.com

Cody - Sourcegraph docs

Documentation for Sourcegraph, the code intelligence platform.

https://sourcegraph.com/cody social preview image

labs.google

/code

/code in Google Labs contains various experiments for code and software development

pluralistic.net

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:

openai.com

Codex | AI Coding Partner from OpenAI

The best way to build with agents. Codex accelerates real engineering work, from planning and building features to refactors, reviews, and releases—working seamlessly across your tools.

openai.com

Codex Security: now in research preview

Codex Security is an AI application security agent that analyzes project context to detect, validate, and patch complex vulnerabilities with higher confidence and less noise.