Claw Code: The Open-Source Claude Code Rewrite That Hit 100K Stars in Hours

Sat, 04 Apr 2026 10:00:00 +0800

On March 31, 2026, a missing .npmignore entry shipped 512,000 lines of unobfuscated TypeScript to the public npm registry. Within hours, the entire internal architecture of Anthropic’s Claude Code — the agent harness connecting LLMs to tools, file systems, and task workflows — was laid bare for the world to study.

Two days later, Claw Code launched as a clean-room Python and Rust rewrite. It became the fastest-growing repository in GitHub history, surpassing 100,000 stars in its first hours. This article examines what happened, what Claw Code actually is, and whether you should care.

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Claw Code: The Open-Source Claude Code Rewrite That Hit 100K Stars in Hours