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The Zig project's rationale for their blanket ban on AI-assisted contributions makes a lot of sense to me - for them, time spent reviewing PRs isn't about the code, it's about growing new contributors for the future of the project simonwillison.net/2026/Apr/30/...

simonwillison.netThe Zig project's rationale for their firm anti-AI contribution policyZig has one of the most stringent anti-LLM policies of any major open source project: No LLMs for issues. No LLMs for pull requests. No LLMs for comments on the …

Axe Ghost. On Steam!

@axeghostgame.bsky.social

30 Apr

I'm not understanding the rationale here. having a perfect LLM-assisted pr accepted (in expectation) helps add new, confident, trustworthy contributors (who use llms) to the project.

Simon Willison

@simonwillison.net

How can you tell if that contributor actually understands the code they produced?

30/4/26, 1:45 pm0 reposts1 like

Axe Ghost. On Steam!

@axeghostgame.bsky.social

30 Apr

if llm-assisted contributions are reliably high quality, the relevant skill being demonstrated is prompt/harness engineering + judgment + verification. the contributor is demonstrating they can ship correct zig code.