Guil Sa

@urubuz

React/React Native, full-stack.

San Francisco, CA

Joined February 2009

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Guil Sa
@urubuz
Mar 31, 2025
As a dev, I shouldn’t have an edge over another dev b/c of AI. That’s dumb. Much like Dev Ops enables CI/CD/GitOps for the org, not the individual, AI Ops responsibilities will maintain related tooling/methodologies. Software manufacturing will flatten/integrate. Everyone relax.
Guil Sa
@urubuz
Sep 24
AI regulation is about money. And models plateauing. Duh. We've demonstrated models are powerful enough to provide value. Now we need to make 'em cheaper without degrading quality. If I'm an investor, a CEO, a gatekeeper, surely I'd consider that we "slow down". It's good PR.
Guil Sa
@urubuz
Sep 23
Curious which shell utilities Codex reaches for the most? I scanned 150+ sessions of mine. No private transcripts exposed. Based the parser on Codex’s schemas, rollout code, and tests, then checked it with synthetic sessions. github.com/guilsa/codex-s… Approximate ranking 👇
Guil Sa
@urubuz
Sep 17
Codex CLI seems to occasionally change models mid-session, especially with multiple long-lived sessions sharing the same CODEX_HOME. /status only shows the current selection, so it’s hard to prove what model actually handled previous turns. The below script reads the session
Inspect a Codex session's recorded model history from ~/.codex/sessions
From gist.github.com
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Guil Sa
@urubuz
Sep 10
Getting a lot of value from an expensive orchestrator servant (gpt-5.6-sol high) reviewing projects + generating prompts for manual sub-agent orchestration. Even large, complex stuff – up to ~300 lines / 1,700 words – is trivial to review + tweak to your heart’s satisfaction.
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