Zig Enforces Anti-LLM Contribution Policy; Bun's 4x LLVM Speedup Cannot Be Upstreamed

Loris Cro's Blog·high signal

The Zig Software Foundation reinforced its blanket prohibition on LLM-authored issues, PRs, and bug tracker comments, citing 'contributor poker' — the principle that reviewing PRs is an investment in growing trusted long-term contributors, not just landing code. The first major enforcement consequence: Bun (owned by Anthropic) cannot upstream a roughly 4x compile speedup because the LLVM-backend work used AI assistance Zig prohibits. The policy distinguishes machine generation from machine assistance — non-English speakers may still translate their own words.