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Rule Authoring 101

A guide to creating regex-based rules for Vale and Vale Server.

An example rule from Vale’s style for the Microsoft Writing Style Guide.


In this post, we’ll take a look at the process of writing new rules for Vale (the command-line tool) and Vale Server (the desktop application). The goal for this post is to supplement the existing documentation by covering possible areas of confusion and potential “gotchas.”




Weekly tips, tricks, and updates about the Vale linter and its ecosystem of software.

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Joseph Kato

Joseph Kato

An open-source software developer with interests in natural language processing, data science, and collaborative writing. More @

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