Since mediawiki-codesniffer v41 (T325201), those sniffs are more lenient about allowing missing doc comments as long as information is provided by static types, which removes the main reason we disabled them in Wikibase (I believe). We should reenable the sniffs, to catch legitimate errors like the following:
FILE: /var/www/html/wiki1/extensions/Wikibase/client/includes/Serializer/ClientEntitySerializer.php
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FOUND 2 ERRORS AFFECTING 2 LINES
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36 | ERROR | Doc comment for parameter $filterLangCodes does not match actual variable name $entityIdParser (MediaWiki.Commenting.FunctionComment.ParamNameNoMatch)
37 | ERROR | Doc comment for parameter $termFallbackChains does not match actual variable name $filterLangCodes
| | (MediaWiki.Commenting.FunctionComment.ParamNameNoMatch)
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FILE: /var/www/html/wiki1/extensions/Wikibase/client/includes/Store/DescriptionLookup.php
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FOUND 2 ERRORS AFFECTING 2 LINES
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67 | ERROR | [x] Pass-by-reference for parameter $actualSources does not match pass-by-reference of variable name $actualSources
| | (MediaWiki.Commenting.FunctionComment.ParamPassByReference)
105 | ERROR | [x] Pass-by-reference for parameter $actualSource does not match pass-by-reference of variable name $actualSource
| | (MediaWiki.Commenting.FunctionComment.ParamPassByReference)
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PHPCBF CAN FIX THE 2 MARKED SNIFF VIOLATIONS AUTOMATICALLY
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------And also to discover places where neither a doc comment nor a static type is present – though in most cases, I expect we’ll want to resolve those errors by adding static types, not doc comments.