> ## Documentation Index
> Fetch the complete documentation index at: https://invoca-5bd45748-mintlify-17ed87db.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# TopNav

> Divergences, open decisions, and undocumented gaps for TopNav.

See [TopNav](/invoca-design-system/components/navigation/top-nav) for the decided part of this page.

## Known issues

| ID                                                                             | Kind       | What                                                                                                                                                                       |
| ------------------------------------------------------------------------------ | ---------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| [**TITAN-DIV-32**](/invoca-design-system/foundations/divergences#titan-div-32) | Divergence | Code ships a bare, one-override `AppBar`; the design library's page template depicts a composed site header with a logo, account selector, global search, and account menu |

## Gaps in the current rules

* **No composed "site header" export exists.** `AppBar`, `Logo`, and `Menu` exist independently;
  nothing wires them together, and no global-search export exists at all. See the main page's
  Composition section for the full inventory.
* **`AppBar`'s stacking order relative to the page frame's sticky `Header` is unconfirmed.**
  `Header` uses the `z-sticky` token; `AppBar` has no equivalent override recorded anywhere in
  the theme. Whether the two coordinate correctly when both are sticky on one page was not
  tested.
* **Whether any of the eight applications using bare `AppBar` actually match the design
  library's intended composition was not checked.** `utilization.md` records the usages; it says
  nothing about what each application built around them.
* **No accessible-name or landmark guidance exists for a composed site header**, since no such
  component exists to check. `AppBar`'s own default `<header>` landmark is confirmed; anything
  beyond that is unverified.