Selected work — case studies
Problem, decisions, outcome.
Apps and AI systems I built end to end. Each write-up walks through what I was trying to make and the decisions behind it.
AI systems
- 01 Commonplace Long-context AI workspace · 1.75M words Making AI working memory visible and controllable — see, steer, and verify what the model uses to answer. 2026 Live demo
- 02 Vitals LLM interpretability · SAE features An EKG for a language model — watch sycophancy and crisis features fire, then test whether steering them helps or hurts. 2026 Live demo
- 03 ProustGPT Agentic RAG · 12,544 bilingual passages Single-flow chatbot to a two-mode product; retrieval measured on a hand-reviewed gold set. 2024– Live on Render
- 04 Grove AI knowledge workspace · macOS & iOS Mostly written by an autonomous agent loop — nothing lands unless it builds. 2026 App Store
Earlier iOS apps