Expired60% confidenceFactExact time

Claude Code uses Bun as its runtime engine instead of Node.js.

2

Sources

60%

Confidence

Medium-term (~90 days)

Relevance

7/2/2026

First Seen

Valid until: 9/30/2026(expired)

Sources

Claude Code Source Code Leak: 500,000 Lines of Code Reveal Core Multi-Agent Architecture Design

bilibili吃人的代码6/20/2026

Related Claims

UnverifiedThe Code-A-D-Code project is built on the Bun runtime and requires Bun version 1.2 or above.73% similar VerifiedClaude Code is a Node.js command-line program that runs in the terminal and can be installed globally via npm.67% similar UnverifiedA developer ran Anthropic's Claude Code natively on Windows XP, with the Claude Code client running as a native Node process without offloading computation to SSH or RDP.62% similar VerifiedClaude Code is essentially a Node.js application that communicates with a backend large language model via API.62% similar

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