# K+DUCK

> K+DUCK turns Korean drama scenes into vertical short-form Korean language lessons.

K+DUCK is a mobile web app for learning Korean through short Korean drama scenes. The app surface is a phone-only browser SPA. Public scene pages are indexable, and a read-only catalog of those pages is published for agents.

## Primary URLs

- Home: https://dev.kduck.net/
- My JinJJa-K activity hub: https://dev.kduck.net/room
- Sitemap: https://dev.kduck.net/sitemap.xml
- API catalog: https://dev.kduck.net/.well-known/api-catalog
- OpenAPI description: https://dev.kduck.net/openapi.json
- Agent skill index: https://dev.kduck.net/.well-known/agent-skills/index.json
- Authentication notes: https://dev.kduck.net/auth.md
- Security contact: https://dev.kduck.net/.well-known/security.txt

## Public APIs

- GET https://dev.kduck.net/api/agent/catalog
  - Lists published learning scenes: id, title, series, episode and scene labels,
    canonical URL, last update. This is the only content API open to agents.

## Not Public

- https://dev.kduck.net/api/content/* serves scene payloads (subtitles, decoder cards, word
  cards, media) to our own pages only and answers 403 off-origin. Use the catalog
  and the canonical /s/{id} pages instead.
- Account, profile, push, and admin APIs are not public discovery targets.

## Content Policy

- Public pages may be indexed for search and used as agent input.
- Public content is not licensed for AI model training by default.