@aude: Can you add a link to your code?

code is on test.wikidata and can be enabled as a gadget:

https://test.wikidata.org/wiki/MediaWiki:Gadget-ProtectionIndicators.js and https://test.wikidata.org/wiki/MediaWiki:Gadget-ProtectionIndicators.css

https://test.wikidata.org/wiki/Q1017 - protected item to test it

surely the gadget could be further improved or tweaks, but think it's already useful.

this can also be tested on Wikidata, by putting in your common.js (e.g. "User:Aude/common.js"):

mw.loader.using([], function() {
importStylesheet('User:Aude/protection.css')
importScript('User:Aude/protection.js');
});

a list of protected pages to try it on:

https://www.wikidata.org/wiki/Special:ProtectedPages

Community discussion started at https://www.wikidata.org/wiki/Wikidata:Project_chat#Protection_indicators.
@aude: would you prefer that the script be moved from your userspace, or that a new MediaWiki page be created?

@Ricordisamoa I have no preference.

one question with the script... It works for all namespaces. Do we want that or just for entity namespaces? I'm thinking perhaps we want that (at least to start with). It might not be necessary or desired to show protection status for the Main page (e.g.) or user pages.

Can somebody explain when we consider this task as done? @aude @Lydia_Pintscher

When it is a gadget on Wikidata.

Ok, thanks!

@Ricordisamoa: Nothing on Project chat. Do you think we can interpret this as "ok to go ahead"? Do you want to do it or should I try to find someone else?

I like the script, but I'd prefer that it be provisionally enabled for entity namespaces only.

@Ricordisamoa agree and can modify the script accordingly.

@Ricordisamoa updated the script.

https://test.wikidata.org/wiki/MediaWiki:Gadget-ProtectionIndicators.js

and

https://www.wikidata.org/wiki/User:Aude/protection.js

and per https://test.wikidata.org/wiki/MediaWiki:Gadgets-definition, note that this also comes with some css.

Thanks @Ricordisamoa!