alexkras.com
Mostly a tech blog
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Latest posts
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Reading Anthropic’s S-1 as a Claude Code user
Anthropic filed its S-1 on October 26. Here is what stood out for me. Key points Revenue passed compute Our compute efficiency is demonstrated by revenue that grew 1,368% year over year for the three months ended June 30, 2026 compared to compute and infrastructure expenses that…
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Opus 5.5 is awesome
I criticized Opus 5 for being chatty and unfocused. Opus 5.5 fixed it, and I built two apps I now use daily.
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My last six months at Evernote, after Bending Spoons took over
I was an Engineering Manager at Evernote. I managed the team that built and operated Evernote’s notifications system, handling 110M messages in 2022. After Bending Spoons acquired Evernote, almost everyone ended up getting laid-off. Severance packages come with a…
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Why I stopped blogging and why I’m back
I started this blog in 2013. I was active for 5 years, with a lot of ups and downs. I took a long break and wanted to review what worked and what didn’t, before I started posting again. I go into more detail in the following video, if you are interested. The short version I ...…
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I Had 24 Claude Code Skills. I Only Needed 9
I spent half a day cleaning up my Claude Code setup: 24 skills became 9 (removed duplicates and unused) and CLAUDE.md went from 246 lines to 123. These observations are from Claude Code 2.1.252; behavior may differ in other versions. The biggest lesson: measure instead of…
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I Miss the Old Claude Code
Claude Code used to feel like an extension of my brain. Now I fight it to get work done.