Parker Smith

Medical student, builds things.

↓

Recent

Dated changes from every page.

Latest

2026-11-03Education, not advice: The gated shift at layer 16 on Qwen3.5-4B: the design panel, the gate calibration, four conditions coded by two blind readers, the static removal as the negative result, the dose sweep, and two ways of keeping a referral.

2026-11-03Education, not advice: The red team: 96 prompts in ten families through the deployed gate, with the fixed referral line, coded by a fourth pair of readers.

2026-11-03Proofs for the edit: Five definitions and eleven theorems in Lean 4 with Mathlib: the removal of a direction, the guarded direction, the residual stream at every depth, and the switch; the hypotheses measured on the saved edit and the invariant measured on the real model after the weight edit; a live two-dimensional figure; the typeset PDF.

2026-10-28Circumstance-sensitive triage: Added Claude Haiku 5.5 on the same 192 messages: the emergency instruction holds under every sentence.

2026-10-28Circumstance-sensitive triage: Added the fix that acts only when the no-insurance sentence is present, with its controls: Table 4, Figure 7, and both fixed models in the chat window.

2026-10-28Circumstance-sensitive triage: Added the 40-sentence test: 40 sentences about the patient's life in 25 families against weather sentences of the same length, Table 5, Figures 8 and 9.

Research

Lab and clinical research.

Circumstance-sensitive triage

How one sentence about a rural patient's life shifts emergency advice in small chat models.

in progress · updated 2026-10-28

Education, not advice

An edit inside a small chat model that makes it explain medicine but stop giving personal advice, without touching its emergency answer.

in progress · updated 2026-11-03

Proofs for the edit

Eleven theorems, checked in Lean, that say exactly what the education-not-advice edit guarantees, and why that was not enough.

in progress · updated 2026-11-03

CRSwNP & Keto Research

Whether a ketogenic diet reduces inflammation in chronic rhinosinusitis with nasal polyps, in a mouse model.

in progress · updated 2026-10-03

AI and code

Software for medicine and for myself.

SMILE-MSI

Open-source, fully-local desktop tool that turns raw mass spectrometry imaging data into annotated maps of tissue lipids.

in progress · updated 2026-10-03

open-slx

Converts SCiLS Lab mass spectrometry imaging projects to imzML without SCiLS Lab or a licence key.

in progress · updated 2026-10-14

Pereste Health

A venture bringing AI to healthcare, focused on health literacy.

in progress · updated 2026-10-03

Voice Assistant

A voice assistant for my house on my own server: custom wake word, local speech to text, and a classifier trained on the house.

in progress · updated 2026-10-03

Tools I Built for Myself

A running list of software and automations I built for my own use: fa-reader, a writing program, a thermostat cost saver, and more.

in progress · updated 2026-10-03

Builds

Things I made with my hands, or close to it.

Sauna Build

A sauna built by hand. Not pretty, but hot.

finished · updated 2026-10-03

Mohs Map

Artwork featured in the inaugural issue of the Hippocratic Collective magazine Ex Vivo.

finished · updated 2026-10-03

Mirror

A used fitness mirror rebuilt with a Raspberry Pi as a display for the house: time, sleep plan, calendar, weather.

finished · updated 2026-10-03

MohsWoundCare

A guide to wound care and recovery after Mohs surgery.

external site ↗

Writing

Essays and notes.

Learning at the Edge of Knowledge

Cholinergic receptor history, Penrose and Orch-OR, and what we need to know to find out what we don't.

finished · updated 2025-10-09

Book Log

Books I've read since 2025, what I'm reading now, and what's next.

in progress · updated 2026-10-04

Contact

© 2026 Parker Smith · About this site