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Claude Tag now writes 65% of the product team's code at Anthropic, including most of what built Claude Tag itself, after a year of internal dogfooding.
Anthropic's Claude Code team says they've used Claude Tag internally all year, and it now writes 65% of the product team's code, including most of Claude Tag's own build. ✦ AI generated
Anthropic Claude Code team (@ClaudeDevs) · Latent Space · 2026-06-24 · original ↗
The Claude Code team said they have been using Claude Tag internally all year and that it now writes 65% of the product team's code, including "most of what built Claude Tag itself"
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- ·Used internally by Claude Code team all year
- ·Now writes 65% of product team's code
- ·Built "most of what built Claude Tag itself"
- ·Internal use continued throughout the year
- ·Self-referential: helped build itself
- ·Source: Anthropic Claude Code team (@ClaudeDevs)
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gives example → At Anthropic, traditional product requirement documents have been replaced by prototypes, and the vast majority of code — including nearly all of Claude Code itself — is now generated by Claude.Boris Cherny · The Pragmatic Engineersupports → Claude Tag is Claude Code made multiplayer, async, and proactive across the whole team, while Claude Code itself remains the fastest mode for solo, synchronous work.Anthropic Claude Code team (@ClaudeDevs) · Latent Spacesupports → At Anthropic, traditional product requirement documents have been replaced by prototypes, and the vast majority of code — including nearly all of Claude Code itself — is now generated by Claude.Boris Cherny · The Pragmatic Engineerextends → At Anthropic, traditional product requirement documents have been replaced by prototypes, and the vast majority of code — including nearly all of Claude Code itself — is now generated by Claude.Boris Cherny · The Pragmatic Engineer