The coding agent just rewrote its own runtime. github spent 120,000 dollars in agent tokens to port…
the coding agent just rewrote its own runtime. github spent 120,000 dollars in agent tokens to port copilot's engine from typescript to rust, landing 800,000 lines across 128 pull requests and a 15.9x throughput gain, with a few dozen regressions along the way.
the codebase nearly doubled while the speed multiplied.
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The note above is reproduced unedited from the original post, first published on Threads on 24 September 2026 at 02:39 IST.
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