SquareCat
What it took to get a learning app into Claude's connector directory
Braineos is now listed in Claude's connector directory. Here's what the review looked at, and what we changed to pass it.
Where to put a castle gate
A small placement bug in a browser game, and the rule we chose so it stays fixed on every level.
Using AI in an education app without teaching wrong answers
AI can draft lessons, cards and questions quickly. Here's how we keep it accurate with human review, sources, care over outdated facts and capped costs.
One answer log, three readers
How Braineos started keeping every answer, why we chose a log over running counters, and how one read side feeds the progress page, CertBrain's readiness panel and the Claude connector.
New art for a game, without touching the game
How Braineos's Tower Defense swapped placeholder circles for castle art: a drawing-only change, one module of SVG path data, and two surprises along the way.
Badges without counters: awarding achievements from data we already had
How we added tiered badges to Braineos with one new table, no stored progress counters, and a backfill that had to share a database with three live sites.
Shipping a web game as its own Android app, from code we already had
How Brain Defense went from a canvas game on braineos.com to its own Play Store app, reusing the game's rules byte for byte and rebuilding only what the phone needed.
Learner analytics from data you already have
How we gave Braineos learners a Progress page and profile totals without a schema change, a chart library or a single estimated number.
Balancing a tower defense game where gold comes from flashcards
How we turned an old idle tower defense prototype into a quiz game for Braineos, and used a headless bot to tune it so knowing the cards wins and ignoring them loses.