To leverage AI to build a working browser you would imo need the following:
- A team of humans with some good ideas on how to improve on existing web engines.
- A clear architectural story written not by agents but by humans. Architecture does not mean high-level diagrams only. At each level of abstraction, you need humans to decide what makes sense and only use the agent to bang out slight variations.
- A modular and human-overseen agentic loop approach: one agent can keep running to try to fix a specific CSS feature(like grid), with a human expert reviewing the work at some interval(not sure how fine-grained it should be). This is actually very similar to running an open-source project: you have code owners and a modular review process, not just an army of contributor committing whatever they want. And a "judge agent" is not the same thing as a human code owner as reviewer.
Example on how not to do it: https://github.com/wilsonzlin/fastrender/blob/19bf1036105d4e...
This rendering loop architecture makes zero sense, and it does not implement web standards.
> in the HTML Standard, requestAnimationFrame is part of the frame rendering steps (“update the rendering”), which occur after running a task and performing a microtask checkpoint
> requestAnimationFrame callbacks run on the frame schedule, not as normal tasks.
This is BS: "update the rendering" is specified as just another task, which means it needs to be followed by a microtask checkpoint. See https://html.spec.whatwg.org/multipage/#event-loop-processin...
Following the spec doesn't mean you cannot optimize rendering tasks in some way vs other tasks in your implementation, but the above is not that, it's classic AI bs.
Understanding Web standards and translating them into an implementation requires human judgement.
Don't use an agent to draft your architecture; an expert in web standards with a interest in agentic coding is what is required.
Message to Cursor CEO: next time, instead of lighting up those millions on fire, reach out to me first: https://github.com/gterzian
