> Bun rewrite took 6 days of coding and was a similar number of LoC, so I think a couple of weeks is definitely reasonable, although you probably need more than 5 Claude subs.

Bun had numerous standardized and extensive javascript test suites to validate the slop code against. I doubt paint.net has test coverage anywhere near that complete, and without it using LLMs to rewrite something is a much larger risk.

Besides which, Bun claims the rewrite took 6 days but they took months after that to finish hammering out the bugs and actually ship, so I don't really buy the original price tag or timeline on their rewrite.

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redox99 4 hours ago | parent [-]

Obviously the agent would need to build a very extensive test setup for Paint.NET, a lot of it with computer use or something similar.

Opening the same files, performing the same clicks, etc should output the same on paint.net and the clone.

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solid_fuel 4 hours ago | parent [-]

Obviously, yes. That's why it needs to be included in any estimate.

My point being "a few weeks and 8M tokens" is wildly unrealistic.

	▲	redox99 4 hours ago \| parent [-]
		Yeah for sure. Easily 10x that. And obviously we're talking just output tokens. I was mostly just pointing out a theoretical lower bound.