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. AnotherGoodName · 1791065400 · focus · HN ↗
  To back this up we have a discord chat for the board game terraforming mars where the agent takes input and vibe codes an open source implementation of the game.
  <a href="https://tfmbot.com" rel="nofollow">https://tfmbot.com is the link (discord and source links on the splash screen).
  The results are fucking incredible to the point where people in discord are stating "I'm surprised this is working so well". I am too.
  I feel like there's a group online that missed the boat. Anything negative towards AI capabilities is still upvoted but I've been in the industry for over 25years, highly respected and can't fathom the "AI dumb lololol" type of comments i see on HN. AI is superseeding all other ways to develop.
  1. sashank_1509 · 1791067981 · focus · HN ↗
    Pretty sure no one on HN says AI dumb
    AnotherGoodName · 1791068545 · focus · HN ↗
    From just this morning i read this thread: <a href="https://news.ycombinator.com/item?id=49946321">https://news.ycombinator.com/item?id=49946321 about a linux distro no longer allowing AI code and the comments are mostly along the lines of "This will be great for maintainability, AI can't code any complexity" which is essentially what I'm getting at here.
    AI writes clean code and can do so in a very maintainable way honestly.
    tripleee · 1791071723 · focus · HN ↗
    One of the last things developers had to offer was being able to guide the AI to write maintainable code. Now that it can do that there's not a whole lot left
    It's understandable why that's hard to accept

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