Thread

Getting the most out of Opus 5.5 in Claude and Claude Code

232 points · 156 comments · saikatsg

rdli · 1791060574 · focus · HN ↗
It’s a really good model. Over the past few days, I give Opus some general directives to basically speed up our CI, and telling it I care both about billing minutes and wall clock time. I told it to create a plan after analyzing everything in our CI, run the plan by a Fable subagent, and then focus on low-risk, high-reward changes.
9 hours later, I had 12 PRs ready to be merged, and the net result is CI time has dropped from ~10 minutes to ~4 minutes, and billing minutes have dropped around 60%. Less than an hour of my attention.
1. GroksBarnacles · 1791062324 · focus · HN ↗
  Is "wall-clock" an actual term you used before Claude? I had never heard it before the model used it and I can't stand it.
  1. hazard · 1791062506 · focus · HN ↗
    It's a pretty old term, to distinguish from e.g. CPU time. This was in common usage even 30 years ago.
    Example from 15 years ago: <a href="https://stackoverflow.com/questions/7335920/what-specifically-are-wall-clock-time-user-cpu-time-and-system-cpu-time-in-uni" rel="nofollow">https://stackoverflow.com/questions/7335920/what-specificall...

Unofficial Hacker News client; not affiliated with Y Combinator.