Data & AI Lab

Small experiments you can check.

Each project asks one question, shows the data it used, runs from saved output with no live services, and says what failed. AI agents propose and draft the work. Felipe reviews and approves everything that is published.

data engineering · production-like demo

Airport data with a written contract

Can a small weekly pipeline load a public, community-edited dataset, reject bad rows through a written data contract, and say plainly when the data went stale or changed shape?

Public data · data as of 2026-10-29 · US$0 a month. The page reads one saved file; the weekly download is one small HTTP fetch.

conversational BI and evaluation · experiment

Ask the Ledger

When someone asks a finance question in plain language, does the system return the right figure, and does it say so when it cannot?

Synthetic data · data as of 2026-10-29 · US$0 to start on Cloudflare's free Workers AI allowance (10,000 neurons a day, read on Cloudflare's pricing page on 2026-10-29). Neurons per question have not been measured. Claude Haiku is not switched on.