Spacing
Non-escaped common math operators
Math functions like sin and cos should be escaped to LaTeX commands in math, so \sin and \cos, otherwise LaTeX will interpret this as the letter s times the letter i times the letter n, resulting in different spacing (try it).
Non-breaking spaces before references
Before a \ref-like command there should be a non-breaking space ~, to avoid a line break just before the reference which would make the sentence harder to read.
Ellipsis with ... instead of \ldots or \dots
Use a \dots-like command instead of ... for better spacing.
Normal space after abbreviation
After an abbreviation like e.g. you should use a normal space instead of an end-of-sentence space, so use e.g.\ this instead of e.g. this (arguably you need to type e.g., this anyway). If you don’t do this, LaTeX will interpret e.g. as the end of a sentence and thus insert a larger space.
End-of-sentence space after sentences ending with capitals
If you end a sentence with a captial letter, for example like Then QED. However, next sentence then LaTeX will interpret QED. as an abbreviation and thus typeset a normal space instead of an end-of-sentence space. Use QED@. instead to override this.
Use the matching amssymb symbol for extreme inequalities
Instead of writing xref: [use \ll for better spacing. Same for ] and more variants.
Incorrectly typeset quotation marks
Since b0.7.19
Different characters are used to open and close a quotation. For example "quotation" should be typeset as ```quotation'' , and ’quotation' should be typeset as ``quotation'`.
Textidote
Since b0.7.24
TeXiFy has support for Textidote (https://github.com/sylvainhalle/textidote) as an external linter. It can be enabled in , you can also change command line options there. The warnings will be shown in the IDE, very similar to inspection warnings. Note that it is an alternative to the Grazie plugin for grammar checking with LanguageTool, it essentially does the same but it is slower.