Stacks
A private research library: case law, statutes, and regulations in one place, every citation linked, and a citator built from the decisions themselves.
- Client
- A New York law firm
- Role
- Product, design, engineering
- Year
- 2026
- Status
- Live · private
- Live
- Private deployment
Matter of Pell v Board of Education.
CitatorNot Shepard’s
The brief
Why it needed to exist.
Commercial research platforms are expensive, and the free sources are scattered across a dozen government sites with no citator at all. The firm needed one place to read, search, and trace authority.
The production
What we built.
Stacks puts New York and federal case law, statutes, and regulations behind one search box. Every decision gets a permanent page where each citation inside it is a live link, and a citator panel beside it shows who cited the case, how, and what happened on appeal.
An AI research assistant works the same library under hard budgets — and every quotation it offers is checked against the stored text and linked to the passage it came from.
01One box, every source
Full-text search across decisions, statutes, the U.S. Code, the CFR, the Federal Register, agency opinions, and licensed practice treatises — with intent detection and filters.
02A page for every decision
Each citation in the text is linked, and a citator panel lists citing references, negative treatment, and direct history.
03Browse like a library
Tables of contents for the U.S. Code and CFR, reporters by volume, federal courts by year, New York slip decisions by month, treatises, and a verdicts browser.
04An assistant that cites
Claude works seventeen library tools with per-question budgets and a daily cost cap. Quotations are verified against source text before they're shown.
05Research that travels
History, folders, and an installable offline app — save a folder for the courthouse and read it without a connection.
06Private by default
Sign-in restricted to the organization, strict security headers, and nothing indexed publicly.
Under the hood
How it’s made.
- Front endReact 19, TypeScript, and Vite; sanitized Markdown rendering
- Back endPython service reading the research engine's corpora read-only
- AIClaude with seventeen library tools, streamed responses, and verified quotations
Stack: Python · React 19 · Vite · SQLite full-text search · Claude · PWA
Stills
From the set.
