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Zac Zadell
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Writing

Personal essays on engineering, startups, and training.

July 16, 2026·5 min read

Kata: a pattern-first way to drill for coding interviews

Why I built another LeetCode clone, and why it isn't really about LeetCode.

July 14, 2026·9 min read

A Bad Judge Is Worse Than No Judge

How manual gold-standard curation at a legal AI startup and a two-tier deterministic/LLM-judge gate at my own coaching platform taught me the same lesson: an evaluation system that scores confidently and wrongly is worse than having no evaluation at all.

applied-ai · llm-eval · production-ai · agentic-systems
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