# Bellefly Kids

- **Event:** [Meta Global AI Developer Hackathon](https://cerebralvalley.ai/e/meta-ai-developer-hackathon)
- **When:** Oct 26, 12:00 PM – Nov 4, 9:00 PM (EST)
- **Where:** Online
- **Team:** [Chalette Hodge](https://cerebralvalley.ai/u/Belleflykids)
- **GitHub:** https://github.com/belleflykids/bellefly-kids-story-builder
- **Demo video:** https://www.youtube.com/watch?v=nzNGtM1hfis
- **Gallery:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/581

Bellefly Kids Story Builder — a parent-led bedtime story builder, not a chat for a child.

The problem: parents and caregivers want a calm bedtime story that teaches what a child needs that day — kindness, patience, courage, sharing, gratitude, friendship — without a child typing, searching the internet, or seeing unchecked stories, ads, or tracking.

How it works — three easy steps:
One, pick a character.
Two, pick a theme.
Three, pick an age appropriate group.
Then tap Make a story. That easy.

A parent picks a character (8 Bellefly Kids characters), a theme (6), and an age band (2–3, 4–5, 6–7), and an optional first name that is never stored or sent anywhere. A parent gets a gentle story to preview and read aloud, with Read to me on top. Children listen, never type. The youngest version (2–3) is shorter and concrete — setup plus action only — with the abstract closing paragraph held for older ages.

Stories come from my world, not the internet: 144 intended story combinations (8 characters × 6 themes × 3 ages), all pre-written and checked, with no fallbacks in testing.

Meta AI use: a parent-only AI draft mode, made with Muse Spark 1.3 through the Meta Model API (Standard tier), through a protected Cloudflare Worker. The Worker accepts only character, theme, and age from fixed allowlists, and never receives a child's name. The API key is stored as a Cloudflare Worker secret and never sent to the browser. A simple parent quick-check unlocks the draft button for that page visit, the draft is checked by the safety validator first, and only a parent tapping Approve makes it a story to read aloud. It never goes straight to a child.

Safety — our child protection layer is the safety validator plus parent preview and Approve, together: checked stories first, a safety check second, and a parent preview and approve third. No draft reaches a child without both. The validator is fail-closed, and the live safety suite runs 14 tests. There are no child accounts, no child typing, no ads, no trackers, and no personal data collected by the demo itself; standard host logs only.

This video is an overview, not the whole proof — so it does not overwhelm the viewer. The true story is in the repo and in the live build: the code, the validator, the safety tests, and the Worker, all verifiable there.

What was created during the hackathon, October 26 to November 4, 2026: the Story Builder code, the safety validator, the safety test suite, and the AI Worker, plus the song, images, and live recording created for the demo video. The Bellefly Kids characters and world existed before the hackathon and are not claimed as hackathon inventions.

Live build: V48, November 2, 2026.
Live demo: https://belleflykids.github.io/bellefly-kids-story-builder/
Public code: https://github.com/belleflykids/bellefly-kids-story-builder
Demo video (Unlisted, 2:57): https://youtu.be/nzNGtM1hfis

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- [Convoplex Retention Agent](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/584)

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