Gemini 4 Argon runs overnight on Google's 205k-line ADK repo, cuts session overhead 40%
leslysandra · x · 2026-10-15
Google Cloud engineers let Gemini 4 Argon run unattended for 11 hours on google/adk-python (205k lines, 800 files, 17k tests) to find and fix cross-file performance bottlenecks. Results: 40% cut in in-memory session prep overhead for long sessions and 21% faster cold imports. The post shares the exact prompts, .agents/skills rulefiles and /goal mode setup, the two optimizations that shipped, the four rejected in human review, and how to replicate the overnight workflow on your own codebase.
Related event: Google Tests Gemini 4 Argon on 200K-Line Codebase Overnight(2 posts)→
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