How can I disable spell checking, keeping only grammar rules

[n-peugnet]

I guess it should be possible to use the ltex.disabledRules setting to achieve this but I can't find a list of all the available rules.

[admbeck]

I managed to remove it using disabledRules with the following:

disabledRules = {
  ["en-US"] = {
    "MORFOLOGIK_RULE_EN_US",
  },
},

You can look for rules on ltex website https://community.languagetool.org/rule/list?lang=en