Architecture Articles — Atticus Li

Atticus Li

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Architecture

Articles exploring architecture through the lens of behavioral science and experimentation. Practical frameworks for growth leaders who measure in revenue, not vanity metrics.

2 articles

experimentation Apr 20, 2026 7 min read

A/B Test Repository Architecture: Schema, Tagging, and the Retrieval Time Budget

A/B test repositories don't fail because the schema is wrong. They fail because nobody can find what they need fast enough. The Retrieval Time Budget separates a useful repo from a graveyard.

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experimentation Apr 20, 2026 8 min read

Centralized A/B Testing Database Design: The Trace Ratio That Predicts Program Health

A centralized A/B testing database is only as useful as the fraction of experiments you can fully reconstruct. The Experiment Trace Ratio measures whether it's a memory layer or just storage.

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