Viewing profile — ryantsuji

ryantsuji

HN member

Joined: Sat, Jul 04, 2026, 2:58 PM UTC
HN karma: 23
Public activity: 10 items
HN profile: View on Hacker News ↗

About ryantsuji

CTO at airCloset, a fashion rental subscription service in Japan. I write about AI engineering harnesses, knowledge graphs, and observability at https://ryantsuji.dev

Recent public activity

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Branching databases like code: a CI/CD pattern for Lakebase at Glaspoort
Tue, Jul 21, 2026, 2:29 PM UTC
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Engineering High-Performance Parsers with Data-Oriented Design
Tue, Jul 14, 2026, 2:01 PM UTC
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Closing a three-year-old issue using Rust arenas
Mon, Jul 13, 2026, 12:30 AM UTC
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Two Case Studies of NaN
Fri, Jul 10, 2026, 2:27 AM UTC
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Observability Design for the AI Era – App, Infra, CI, LLM (Part 1)
Tue, Jul 07, 2026, 1:24 PM UTC
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Preempt_none Is Dead; Your Postgres Probably Doesn't Care
Mon, Jul 06, 2026, 2:58 PM UTC
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Building Agents That Don't Break Themselves
Sun, Jul 05, 2026, 11:54 PM UTC
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Comment #48789466
Sat, Jul 04, 2026, 9:58 PM UTC
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Comment #48786132
Note the repro condition: first response after 5+ min, i.e. a cache miss. A cache leak would show up on hits (someone else's cached prefix), not on misses where everything is recom…

Sat, Jul 04, 2026, 3:34 PM UTC
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Comment #48785910
Sat, Jul 04, 2026, 3:02 PM UTC