“I think we found that the state-of-the-art in December was you can probably, run this for about two weeks. By the end of those two weeks, you’d find that, hey, you want to, change the color of a button. Well, it turns out this button is implemented in, 10 different places, and they, have All these different variations, and oh, you forgot one of them, and actually it’s a slightly different color in one spot.”
Context. Yan was describing an internal experiment building real products by auto-merging AI-written code with no code review, to see how many weeks it could run before the codebase became unmanageable.
Walden Yan, Co-founder and Chief Product Officer. Co-founder and product chief of the company that makes Devin, so he sees its internal usage data; Cognition sells AI coding agents and has reason to present them favorably.
Cognition sells AI or agent tooling, so it has a reason to publish flattering numbers about AI. The passage stays in the archive; read it with that in mind.
How this was checked
Checked against the source by a first reader, then confirmed independently by a second reader who fetched the source without seeing the first reader's notes (Independent review agent (Claude Sonnet), blind second pass from passage text and citation only, no repository access, 2026-11-01).
Exact match, including 'have All these'. The turn is labeled 'Walden [00:44:21]'.
How to cite this passage
Walden Yan (Cognition), “The Age of Async Agents: Cognition's Walden Yan and OpenInspect's Cole Murray”, Latent Space, 2026-05-28, at 00:44:21. https://latent.space/p/cognition Archived at https://the-ai-record.com/passages/cognition-vibe-coding-no-review-experiment-two-weeks-2026
Context. Walden Yan was describing an internal graph of Cognition's merged pull requests, which he said had grown 7X; the passage is the continuation of that answer.
Cognition