# Discovered Rules — Finalized

> Hard constraints surfaced from the project description, the empirical
> research, and the interview. Promoted to `memory/project.md` at the
> affirmation gate.

## Mandated

- ALWAYS generate pure HTML5 + CSS with no build step and no external
  dependencies, so the result runs entirely from the local filesystem
  (never beyond localhost).
- ALWAYS make the rendered page printable cleanly to A4 from the browser's
  print dialog.
- ALWAYS fetch or read content only through user-granted means (native file
  picker / drag-and-drop) when the page runs from `file://` — never rely on
  `fetch()` of sibling local files, because the opaque-origin policy blocks it
  in stock browsers (empirically verified: plain Chromium blocks
  `fetch('article.txt')` from a `file://` page, while the native file picker
  works).
- ALWAYS make the page work with zero network requests (no CDN fonts, no
  remote `<script>`/`<style>`), so it is fully functional offline from `file://`.

## Forbidden

- NEVER reference content, fonts, or assets by remote URL; everything ships
  with the page.