> For the complete documentation index, see [llms.txt](https://engine.sygnal.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://engine.sygnal.com/future/dev-team-notes/page-efficiency.md).

# Page efficiency

Avoid double load between setup and exec 

Maintain page object availabe also for client-side code 

To support page vars