The run proposed six optimizations across 32 files; after review, two changes shipped. Google reports about 40% less in-memory session preparation time in long sessions and 21% faster cold package imports. The agent ran all 16,892 open-source tests and opened a pull request, which was not merged automatically. The company says an earlier two-hour run exposed problems with maintainer conventions and public-schema compatibility. Source: https://developers.googleblog.com/optimizing-a-200000-line-python-codebase-overnight-with-gemini-4-argon
Raw SignalOct 14, 20261 min read1 source
Optimizing a 200,000-line Python codebase overnight with Gemini 4 Argon
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Google says its engineers ran Gemini 4 Argon unattended for 11 hours on the Python Agent Development Kit, a roughly 205,000-line repository with nearly 800 source files.