I think it would be useful to create page generators (in pagegenerators.py) for pages which should remain at a consistent 'quality' level.
The following are currently in featured.py:
- featured articles (also in fixing_redirects.py)
- former featured articles
- good articles
Another page generator is
- main page and any pages transcluded / linked from the main page
These are articles which should be maintained more frequently than other articles (daily), and they are a small subset of pages which *should* have no problems on any wiki, which means scripts (and a T104819: Pywikibot wiki health check) can emit an error if any degradation in quality occurs.
As they are a small subset, we may also be able to use them in Pywikibot-tests , and capture any write operation occurs and fail the test.