Source note: Local copy of a Summer Into AI 2026 submission originally published on Substack. Screenshots, video, and audio found in the post body are mirrored locally when publicly accessible; profile and avatar images are intentionally not copied. Read the canonical post.
Week 3 of Summer into AI 2026 hosted by @advisoryhour — theme: Data.Punk.
The FDA's Adverse Event Reporting System (FAERS) holds over 30 million reports from patients, doctors, and pharmacists about drug side effects — filed after drugs are already on shelves. Most people never see this data. Side Effect Oracle pulls it in real time, stacks the actual post-market reports against the official label language, and has Claude reason through the gaps with extended thinking. Type a drug name and watch the FDA's own data reveal what the label doesn't say.
How the AI works
Dual FDA data fetch — The app simultaneously queries the FDA FAERS reaction-count endpoint (top 25 adverse reactions by report volume) and the FDA drug label database (adverse_reactions, warnings, warnings_and_cautions fields). Both run in parallel before Claude sees anything.
Extended thinking + streaming dossier — Claude claude-sonnet-4-6 with extended thinking (budget: 6,000 tokens) receives both datasets in a single message. It reasons through label-vs-reality gaps before writing the dossier, which streams live to the screen section by section: [DRUG PROFILE], [TOP REPORTED REACTIONS], [LABEL vs REALITY], [UNDERSTANDING THE NUMBERS], [QUESTIONS FOR YOUR DOCTOR].
Collapsible reasoning trace — The thinking block streams separately and collapses into a toggle so you can see exactly what Claude weighed before concluding.
How to play
Type any drug name — generic names work best (ibuprofen, metformin, sertraline, lisinopril)
Click QUERY FDA — the app fetches both FAERS reaction data and the official label simultaneously.
Watch the side-by-side panels: animated reaction bars on the left, FDA label text on the right
Read the streaming dossier as Claude reasons through what the numbers reveal — especially the [LABEL vs REALITY] section
Expand the reasoning trace to see Claude's chain of thought before the dossier was written
Where to play
Demo: demo-02-side-effect-oracle.vercel.app
Code & README: github.com/GlimmerForge/summer-into-ai → demo-02-side-effect-oracle/README.md
Summer into AI 2026 · Theme 3: Data.Punk
Original source
Canonical Substack URL: https://jakestrait5.substack.com/p/summer-into-ai-2026-side-effect-oracle.