diff --git a/README.md b/README.md
index e2f7c6e7..f078b49e 100644
--- a/README.md
+++ b/README.md
@@ -375,12 +375,48 @@ for all rules. Using a tag name (e.g., `whitespace`) and a setting of `false`,
 configuration object is passed or the optional `default` setting is not present,
 all rules are enabled.
 
+The following syntax disables the specified rule, tag, or `default`:
+
+```javascript
+{
+  "rule_name": false
+}
+```
+
+The following syntax enables the specified rule, tag, or `default`:
+
+```javascript
+{
+  "rule_name": true
+  // OR
+  "rule_name": "error"
+}
+```
+
+The following syntax enables and configures the specified rule:
+
+```javascript
+{
+  "rule_name": {
+    "parameter": "value"
+  }
+  // OR
+  "rule_name": {
+    "parameter": "value",
+    "severity": "error"
+  }
+}
+```
+
+> Note that `error` and `severity` are not supported by library versions earlier
+> than `0.39.0`. However, all examples above behave the same.
+
 To evaluate a configuration object, the `default` setting is applied first, then
 keys are processed in order from top to bottom. If multiple values apply to a
 rule (because of tag names or duplication), later values override earlier ones.
 Keys (including rule names, aliases, tags, or `default`) are not case-sensitive.
 
-Example:
+Example using `default`, rule names, and tag names together:
 
 ```json
 {
diff --git a/doc-build/build-rules.mjs b/doc-build/build-rules.mjs
index a1626a2c..55889668 100644
--- a/doc-build/build-rules.mjs
+++ b/doc-build/build-rules.mjs
@@ -61,8 +61,12 @@ for (const rule of rules) {
     ""
   );
   const ruleData = schema.properties[name];
-  const ruleProperties = ruleData.oneOf.at(-1).properties;
-  if (ruleProperties) {
+  const ruleProperties = Object.fromEntries(
+    Object.entries(
+      ruleData.oneOf.at(-1).properties
+    ).filter(([ key ]) => key !== "severity")
+  );
+  if (Object.keys(ruleProperties).length > 0) {
     section.push(
       "Parameters:",
       ""
diff --git a/lib/configuration-strict.d.ts b/lib/configuration-strict.d.ts
index 2bb30dbf..bf27b840 100644
--- a/lib/configuration-strict.d.ts
+++ b/lib/configuration-strict.d.ts
@@ -25,6 +25,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * RegExp for matching title in front matter
          */
@@ -37,6 +41,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * RegExp for matching title in front matter
          */
@@ -49,6 +57,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Heading style
          */
@@ -61,6 +73,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Heading style
          */
@@ -73,6 +89,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * List style
          */
@@ -85,6 +105,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * List style
          */
@@ -93,11 +117,27 @@ export interface ConfigurationStrict {
   /**
    * MD005/list-indent : Inconsistent indentation for list items at the same level : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md005.md
    */
-  MD005?: boolean | "error";
+  MD005?:
+    | boolean
+    | "error"
+    | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
+      };
   /**
    * MD005/list-indent : Inconsistent indentation for list items at the same level : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md005.md
    */
-  "list-indent"?: boolean | "error";
+  "list-indent"?:
+    | boolean
+    | "error"
+    | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
+      };
   /**
    * MD007/ul-indent : Unordered list indentation : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md007.md
    */
@@ -105,6 +145,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Spaces for indent
          */
@@ -125,6 +169,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Spaces for indent
          */
@@ -145,6 +193,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Spaces for line break
          */
@@ -165,6 +217,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Spaces for line break
          */
@@ -185,6 +241,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Include code blocks
          */
@@ -205,6 +265,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Include code blocks
          */
@@ -221,11 +285,27 @@ export interface ConfigurationStrict {
   /**
    * MD011/no-reversed-links : Reversed link syntax : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md011.md
    */
-  MD011?: boolean | "error";
+  MD011?:
+    | boolean
+    | "error"
+    | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
+      };
   /**
    * MD011/no-reversed-links : Reversed link syntax : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md011.md
    */
-  "no-reversed-links"?: boolean | "error";
+  "no-reversed-links"?:
+    | boolean
+    | "error"
+    | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
+      };
   /**
    * MD012/no-multiple-blanks : Multiple consecutive blank lines : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md012.md
    */
@@ -233,6 +313,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Consecutive blank lines
          */
@@ -245,6 +329,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Consecutive blank lines
          */
@@ -257,6 +345,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Number of characters
          */
@@ -297,6 +389,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Number of characters
          */
@@ -333,43 +429,123 @@ export interface ConfigurationStrict {
   /**
    * MD014/commands-show-output : Dollar signs used before commands without showing output : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md014.md
    */
-  MD014?: boolean | "error";
+  MD014?:
+    | boolean
+    | "error"
+    | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
+      };
   /**
    * MD014/commands-show-output : Dollar signs used before commands without showing output : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md014.md
    */
-  "commands-show-output"?: boolean | "error";
+  "commands-show-output"?:
+    | boolean
+    | "error"
+    | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
+      };
   /**
    * MD018/no-missing-space-atx : No space after hash on atx style heading : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md018.md
    */
-  MD018?: boolean | "error";
+  MD018?:
+    | boolean
+    | "error"
+    | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
+      };
   /**
    * MD018/no-missing-space-atx : No space after hash on atx style heading : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md018.md
    */
-  "no-missing-space-atx"?: boolean | "error";
+  "no-missing-space-atx"?:
+    | boolean
+    | "error"
+    | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
+      };
   /**
    * MD019/no-multiple-space-atx : Multiple spaces after hash on atx style heading : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md019.md
    */
-  MD019?: boolean | "error";
+  MD019?:
+    | boolean
+    | "error"
+    | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
+      };
   /**
    * MD019/no-multiple-space-atx : Multiple spaces after hash on atx style heading : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md019.md
    */
-  "no-multiple-space-atx"?: boolean | "error";
+  "no-multiple-space-atx"?:
+    | boolean
+    | "error"
+    | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
+      };
   /**
    * MD020/no-missing-space-closed-atx : No space inside hashes on closed atx style heading : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md020.md
    */
-  MD020?: boolean | "error";
+  MD020?:
+    | boolean
+    | "error"
+    | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
+      };
   /**
    * MD020/no-missing-space-closed-atx : No space inside hashes on closed atx style heading : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md020.md
    */
-  "no-missing-space-closed-atx"?: boolean | "error";
+  "no-missing-space-closed-atx"?:
+    | boolean
+    | "error"
+    | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
+      };
   /**
    * MD021/no-multiple-space-closed-atx : Multiple spaces inside hashes on closed atx style heading : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md021.md
    */
-  MD021?: boolean | "error";
+  MD021?:
+    | boolean
+    | "error"
+    | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
+      };
   /**
    * MD021/no-multiple-space-closed-atx : Multiple spaces inside hashes on closed atx style heading : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md021.md
    */
-  "no-multiple-space-closed-atx"?: boolean | "error";
+  "no-multiple-space-closed-atx"?:
+    | boolean
+    | "error"
+    | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
+      };
   /**
    * MD022/blanks-around-headings : Headings should be surrounded by blank lines : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md022.md
    */
@@ -377,6 +553,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Blank lines above heading
          */
@@ -393,6 +573,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Blank lines above heading
          */
@@ -405,11 +589,27 @@ export interface ConfigurationStrict {
   /**
    * MD023/heading-start-left : Headings must start at the beginning of the line : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md023.md
    */
-  MD023?: boolean | "error";
+  MD023?:
+    | boolean
+    | "error"
+    | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
+      };
   /**
    * MD023/heading-start-left : Headings must start at the beginning of the line : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md023.md
    */
-  "heading-start-left"?: boolean | "error";
+  "heading-start-left"?:
+    | boolean
+    | "error"
+    | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
+      };
   /**
    * MD024/no-duplicate-heading : Multiple headings with the same content : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md024.md
    */
@@ -417,6 +617,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Only check sibling headings
          */
@@ -429,6 +633,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Only check sibling headings
          */
@@ -441,6 +649,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * RegExp for matching title in front matter
          */
@@ -457,6 +669,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * RegExp for matching title in front matter
          */
@@ -473,6 +689,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * RegExp for matching title in front matter
          */
@@ -489,6 +709,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Punctuation characters
          */
@@ -501,6 +725,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Punctuation characters
          */
@@ -513,6 +741,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Include list items
          */
@@ -525,6 +757,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Include list items
          */
@@ -533,11 +769,27 @@ export interface ConfigurationStrict {
   /**
    * MD028/no-blanks-blockquote : Blank line inside blockquote : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md028.md
    */
-  MD028?: boolean | "error";
+  MD028?:
+    | boolean
+    | "error"
+    | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
+      };
   /**
    * MD028/no-blanks-blockquote : Blank line inside blockquote : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md028.md
    */
-  "no-blanks-blockquote"?: boolean | "error";
+  "no-blanks-blockquote"?:
+    | boolean
+    | "error"
+    | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
+      };
   /**
    * MD029/ol-prefix : Ordered list item prefix : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md029.md
    */
@@ -545,6 +797,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * List style
          */
@@ -557,6 +813,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * List style
          */
@@ -569,6 +829,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Spaces for single-line unordered list items
          */
@@ -593,6 +857,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Spaces for single-line unordered list items
          */
@@ -617,6 +885,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Include list items
          */
@@ -629,6 +901,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Include list items
          */
@@ -637,11 +913,27 @@ export interface ConfigurationStrict {
   /**
    * MD032/blanks-around-lists : Lists should be surrounded by blank lines : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md032.md
    */
-  MD032?: boolean | "error";
+  MD032?:
+    | boolean
+    | "error"
+    | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
+      };
   /**
    * MD032/blanks-around-lists : Lists should be surrounded by blank lines : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md032.md
    */
-  "blanks-around-lists"?: boolean | "error";
+  "blanks-around-lists"?:
+    | boolean
+    | "error"
+    | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
+      };
   /**
    * MD033/no-inline-html : Inline HTML : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md033.md
    */
@@ -649,6 +941,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Allowed elements
          */
@@ -665,6 +961,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Allowed elements
          */
@@ -677,11 +977,27 @@ export interface ConfigurationStrict {
   /**
    * MD034/no-bare-urls : Bare URL used : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md034.md
    */
-  MD034?: boolean | "error";
+  MD034?:
+    | boolean
+    | "error"
+    | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
+      };
   /**
    * MD034/no-bare-urls : Bare URL used : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md034.md
    */
-  "no-bare-urls"?: boolean | "error";
+  "no-bare-urls"?:
+    | boolean
+    | "error"
+    | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
+      };
   /**
    * MD035/hr-style : Horizontal rule style : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md035.md
    */
@@ -689,6 +1005,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Horizontal rule style
          */
@@ -701,6 +1021,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Horizontal rule style
          */
@@ -713,6 +1037,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Punctuation characters
          */
@@ -725,6 +1053,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Punctuation characters
          */
@@ -733,27 +1065,75 @@ export interface ConfigurationStrict {
   /**
    * MD037/no-space-in-emphasis : Spaces inside emphasis markers : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md037.md
    */
-  MD037?: boolean | "error";
+  MD037?:
+    | boolean
+    | "error"
+    | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
+      };
   /**
    * MD037/no-space-in-emphasis : Spaces inside emphasis markers : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md037.md
    */
-  "no-space-in-emphasis"?: boolean | "error";
+  "no-space-in-emphasis"?:
+    | boolean
+    | "error"
+    | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
+      };
   /**
    * MD038/no-space-in-code : Spaces inside code span elements : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md038.md
    */
-  MD038?: boolean | "error";
+  MD038?:
+    | boolean
+    | "error"
+    | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
+      };
   /**
    * MD038/no-space-in-code : Spaces inside code span elements : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md038.md
    */
-  "no-space-in-code"?: boolean | "error";
+  "no-space-in-code"?:
+    | boolean
+    | "error"
+    | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
+      };
   /**
    * MD039/no-space-in-links : Spaces inside link text : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md039.md
    */
-  MD039?: boolean | "error";
+  MD039?:
+    | boolean
+    | "error"
+    | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
+      };
   /**
    * MD039/no-space-in-links : Spaces inside link text : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md039.md
    */
-  "no-space-in-links"?: boolean | "error";
+  "no-space-in-links"?:
+    | boolean
+    | "error"
+    | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
+      };
   /**
    * MD040/fenced-code-language : Fenced code blocks should have a language specified : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md040.md
    */
@@ -761,6 +1141,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * List of languages
          */
@@ -777,6 +1161,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * List of languages
          */
@@ -793,6 +1181,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Allow content before first heading
          */
@@ -813,6 +1205,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Allow content before first heading
          */
@@ -833,6 +1229,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Allow content before first heading
          */
@@ -849,11 +1249,27 @@ export interface ConfigurationStrict {
   /**
    * MD042/no-empty-links : No empty links : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md042.md
    */
-  MD042?: boolean | "error";
+  MD042?:
+    | boolean
+    | "error"
+    | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
+      };
   /**
    * MD042/no-empty-links : No empty links : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md042.md
    */
-  "no-empty-links"?: boolean | "error";
+  "no-empty-links"?:
+    | boolean
+    | "error"
+    | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
+      };
   /**
    * MD043/required-headings : Required heading structure : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md043.md
    */
@@ -861,6 +1277,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * List of headings
          */
@@ -877,6 +1297,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * List of headings
          */
@@ -893,6 +1317,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * List of proper names
          */
@@ -913,6 +1341,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * List of proper names
          */
@@ -929,11 +1361,27 @@ export interface ConfigurationStrict {
   /**
    * MD045/no-alt-text : Images should have alternate text (alt text) : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md045.md
    */
-  MD045?: boolean | "error";
+  MD045?:
+    | boolean
+    | "error"
+    | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
+      };
   /**
    * MD045/no-alt-text : Images should have alternate text (alt text) : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md045.md
    */
-  "no-alt-text"?: boolean | "error";
+  "no-alt-text"?:
+    | boolean
+    | "error"
+    | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
+      };
   /**
    * MD046/code-block-style : Code block style : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md046.md
    */
@@ -941,6 +1389,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Block style
          */
@@ -953,6 +1405,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Block style
          */
@@ -961,11 +1417,27 @@ export interface ConfigurationStrict {
   /**
    * MD047/single-trailing-newline : Files should end with a single newline character : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md047.md
    */
-  MD047?: boolean | "error";
+  MD047?:
+    | boolean
+    | "error"
+    | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
+      };
   /**
    * MD047/single-trailing-newline : Files should end with a single newline character : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md047.md
    */
-  "single-trailing-newline"?: boolean | "error";
+  "single-trailing-newline"?:
+    | boolean
+    | "error"
+    | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
+      };
   /**
    * MD048/code-fence-style : Code fence style : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md048.md
    */
@@ -973,6 +1445,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Code fence style
          */
@@ -985,6 +1461,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Code fence style
          */
@@ -997,6 +1477,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Emphasis style
          */
@@ -1009,6 +1493,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Emphasis style
          */
@@ -1021,6 +1509,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Strong style
          */
@@ -1033,6 +1525,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Strong style
          */
@@ -1045,6 +1541,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Ignore case of fragments
          */
@@ -1061,6 +1561,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Ignore case of fragments
          */
@@ -1077,6 +1581,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Ignored link labels
          */
@@ -1093,6 +1601,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Ignored link labels
          */
@@ -1109,6 +1621,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Ignored definitions
          */
@@ -1121,6 +1637,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Ignored definitions
          */
@@ -1133,6 +1653,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Allow autolinks
          */
@@ -1165,6 +1689,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Allow autolinks
          */
@@ -1197,6 +1725,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Table pipe style
          */
@@ -1209,6 +1741,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Table pipe style
          */
@@ -1217,19 +1753,51 @@ export interface ConfigurationStrict {
   /**
    * MD056/table-column-count : Table column count : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md056.md
    */
-  MD056?: boolean | "error";
+  MD056?:
+    | boolean
+    | "error"
+    | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
+      };
   /**
    * MD056/table-column-count : Table column count : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md056.md
    */
-  "table-column-count"?: boolean | "error";
+  "table-column-count"?:
+    | boolean
+    | "error"
+    | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
+      };
   /**
    * MD058/blanks-around-tables : Tables should be surrounded by blank lines : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md058.md
    */
-  MD058?: boolean | "error";
+  MD058?:
+    | boolean
+    | "error"
+    | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
+      };
   /**
    * MD058/blanks-around-tables : Tables should be surrounded by blank lines : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md058.md
    */
-  "blanks-around-tables"?: boolean | "error";
+  "blanks-around-tables"?:
+    | boolean
+    | "error"
+    | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
+      };
   /**
    * MD059/descriptive-link-text : Link text should be descriptive : https://github.com/DavidAnson/markdownlint/blob/v0.38.0/doc/md059.md
    */
@@ -1237,6 +1805,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Prohibited link texts
          */
@@ -1249,6 +1821,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Prohibited link texts
          */
@@ -1261,6 +1837,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Table column style
          */
@@ -1273,6 +1853,10 @@ export interface ConfigurationStrict {
     | boolean
     | "error"
     | {
+        /**
+         * Rule severity
+         */
+        severity?: "error";
         /**
          * Table column style
          */
diff --git a/lib/markdownlint.mjs b/lib/markdownlint.mjs
index 50a30497..2556a250 100644
--- a/lib/markdownlint.mjs
+++ b/lib/markdownlint.mjs
@@ -262,9 +262,9 @@ function getEffectiveConfig(ruleList, config, aliasToRuleNames) {
   for (const key of Object.keys(config)) {
     let value = config[key];
     if (value) {
-      if (!(value instanceof Object)) {
-        value = {};
-      }
+      value = (value instanceof Object) ?
+        Object.fromEntries(Object.entries(value).filter(([ k ]) => k !== "severity")) :
+        {};
     } else {
       value = false;
     }
diff --git a/schema/build-config-example.mjs b/schema/build-config-example.mjs
index 9e259b6d..1c99dfa1 100644
--- a/schema/build-config-example.mjs
+++ b/schema/build-config-example.mjs
@@ -6,14 +6,20 @@ import yaml from "js-yaml";
 import { __dirname, importWithTypeJson } from "../test/esm-helpers.mjs";
 const configSchema = await importWithTypeJson(import.meta, "../schema/markdownlint-config-schema.json");
 
+/** @type {Object<string, any>} */
 const configExample = {};
 for (const rule in configSchema.properties) {
   if (/^(?:MD\d{3}|default|extends)$/.test(rule)) {
     const properties = configSchema.properties[rule];
     configExample[rule + "-description"] = properties.description;
     configExample[rule] = properties.default;
-    const subproperties = properties.oneOf?.at(-1).properties;
-    if (subproperties) {
+    const subproperties = Object.fromEntries(
+      Object.entries(
+        properties.oneOf?.at(-1).properties || []
+      ).filter(([ key ]) => key !== "severity")
+    );
+    if (Object.keys(subproperties).length > 0) {
+      /** @type {Object<string, any>} */
       const ruleExample = {};
       // eslint-disable-next-line guard-for-in
       for (const property in subproperties) {
@@ -26,6 +32,13 @@ for (const rule in configSchema.properties) {
   }
 }
 
+/**
+ * Transforms comments to use the specified prefix.
+ *
+ * @param {string} input Markdown input.
+ * @param {string} commentPrefix Comment prefix.
+ * @returns {string} Transformed input.
+ */
 const transformComments = (input, commentPrefix) => (
   commentPrefix +
   " Example markdownlint configuration with all properties set to their default value\n" +
diff --git a/schema/build-config-schema.mjs b/schema/build-config-schema.mjs
index 3c2183fc..1ccc159f 100644
--- a/schema/build-config-schema.mjs
+++ b/schema/build-config-schema.mjs
@@ -70,575 +70,577 @@ for (const rule of rules) {
     ],
     "default": true
   };
-  /** @type {{type: "object", additionalProperties: boolean, properties?: object}} */
   const subscheme = {
     "type": "object",
-    "additionalProperties": false
+    "additionalProperties": false,
+    "properties": {
+      "severity": {
+        "description": "Rule severity",
+        "type": "string",
+        "enum": [
+          "error"
+        ],
+        "default": "error"
+      }
+    }
   };
-  let custom = true;
+  scheme.oneOf.push(subscheme);
+  /* eslint-disable camelcase */
   switch (ruleName) {
     case "MD001":
-      subscheme.properties = {
-        "front_matter_title": {
-          "description": "RegExp for matching title in front matter",
-          "type": "string",
-          "default": "^\\s*title\\s*[:=]"
-        }
+      // @ts-ignore
+      subscheme.properties.front_matter_title = {
+        "description": "RegExp for matching title in front matter",
+        "type": "string",
+        "default": "^\\s*title\\s*[:=]"
       };
       break;
     case "MD003":
-      subscheme.properties = {
-        "style": {
-          "description": "Heading style",
-          "type": "string",
-          "enum": [
-            "consistent",
-            "atx",
-            "atx_closed",
-            "setext",
-            "setext_with_atx",
-            "setext_with_atx_closed"
-          ],
-          "default": "consistent"
-        }
+      // @ts-ignore
+      subscheme.properties.style = {
+        "description": "Heading style",
+        "type": "string",
+        "enum": [
+          "consistent",
+          "atx",
+          "atx_closed",
+          "setext",
+          "setext_with_atx",
+          "setext_with_atx_closed"
+        ],
+        "default": "consistent"
       };
       break;
     case "MD004":
-      subscheme.properties = {
-        "style": {
-          "description": "List style",
-          "type": "string",
-          "enum": [
-            "consistent",
-            "asterisk",
-            "plus",
-            "dash",
-            "sublist"
-          ],
-          "default": "consistent"
-        }
+      // @ts-ignore
+      subscheme.properties.style = {
+        "description": "List style",
+        "type": "string",
+        "enum": [
+          "consistent",
+          "asterisk",
+          "plus",
+          "dash",
+          "sublist"
+        ],
+        "default": "consistent"
       };
       break;
     case "MD007":
-      subscheme.properties = {
-        "indent": {
-          "description": "Spaces for indent",
-          "type": "integer",
-          "minimum": 1,
-          "default": 2
-        },
-        "start_indented": {
-          "description": "Whether to indent the first level of the list",
-          "type": "boolean",
-          "default": false
-        },
-        "start_indent": {
-          "description":
-            "Spaces for first level indent (when start_indented is set)",
-          "type": "integer",
-          "minimum": 1,
-          "default": 2
-        }
+      // @ts-ignore
+      subscheme.properties.indent = {
+        "description": "Spaces for indent",
+        "type": "integer",
+        "minimum": 1,
+        "default": 2
+      };
+      // @ts-ignore
+      subscheme.properties.start_indented = {
+        "description": "Whether to indent the first level of the list",
+        "type": "boolean",
+        "default": false
+      };
+      // @ts-ignore
+      subscheme.properties.start_indent = {
+        "description":
+          "Spaces for first level indent (when start_indented is set)",
+        "type": "integer",
+        "minimum": 1,
+        "default": 2
       };
       break;
     case "MD009":
-      subscheme.properties = {
-        "br_spaces": {
-          "description": "Spaces for line break",
-          "type": "integer",
-          "minimum": 0,
-          "default": 2
-        },
-        "list_item_empty_lines": {
-          "description": "Allow spaces for empty lines in list items",
-          "type": "boolean",
-          "default": false
-        },
-        "strict": {
-          "description": "Include unnecessary breaks",
-          "type": "boolean",
-          "default": false
-        }
+      // @ts-ignore
+      subscheme.properties.br_spaces = {
+        "description": "Spaces for line break",
+        "type": "integer",
+        "minimum": 0,
+        "default": 2
+      };
+      // @ts-ignore
+      subscheme.properties.list_item_empty_lines = {
+        "description": "Allow spaces for empty lines in list items",
+        "type": "boolean",
+        "default": false
+      };
+      // @ts-ignore
+      subscheme.properties.strict = {
+        "description": "Include unnecessary breaks",
+        "type": "boolean",
+        "default": false
       };
       break;
     case "MD010":
-      subscheme.properties = {
-        "code_blocks": {
-          "description": "Include code blocks",
-          "type": "boolean",
-          "default": true
+      // @ts-ignore
+      subscheme.properties.code_blocks = {
+        "description": "Include code blocks",
+        "type": "boolean",
+        "default": true
+      };
+      // @ts-ignore
+      subscheme.properties.ignore_code_languages = {
+        "description": "Fenced code languages to ignore",
+        "type": "array",
+        "items": {
+          "type": "string"
         },
-        "ignore_code_languages": {
-          "description": "Fenced code languages to ignore",
-          "type": "array",
-          "items": {
-            "type": "string"
-          },
-          "default": []
-        },
-        "spaces_per_tab": {
-          "description": "Number of spaces for each hard tab",
-          "type": "integer",
-          "minimum": 0,
-          "default": 1
-        }
+        "default": []
+      };
+      // @ts-ignore
+      subscheme.properties.spaces_per_tab = {
+        "description": "Number of spaces for each hard tab",
+        "type": "integer",
+        "minimum": 0,
+        "default": 1
       };
       break;
     case "MD012":
-      subscheme.properties = {
-        "maximum": {
-          "description": "Consecutive blank lines",
-          "type": "integer",
-          "minimum": 1,
-          "default": 1
-        }
+      // @ts-ignore
+      subscheme.properties.maximum = {
+        "description": "Consecutive blank lines",
+        "type": "integer",
+        "minimum": 1,
+        "default": 1
       };
       break;
     case "MD013":
-      subscheme.properties = {
-        "line_length": {
-          "description": "Number of characters",
-          "type": "integer",
-          "minimum": 1,
-          "default": 80
-        },
-        "heading_line_length": {
-          "description": "Number of characters for headings",
-          "type": "integer",
-          "minimum": 1,
-          "default": 80
-        },
-        "code_block_line_length": {
-          "description": "Number of characters for code blocks",
-          "type": "integer",
-          "minimum": 1,
-          "default": 80
-        },
-        "code_blocks": {
-          "description": "Include code blocks",
-          "type": "boolean",
-          "default": true
-        },
-        "tables": {
-          "description": "Include tables",
-          "type": "boolean",
-          "default": true
-        },
-        "headings": {
-          "description": "Include headings",
-          "type": "boolean",
-          "default": true
-        },
-        "strict": {
-          "description": "Strict length checking",
-          "type": "boolean",
-          "default": false
-        },
-        "stern": {
-          "description": "Stern length checking",
-          "type": "boolean",
-          "default": false
-        }
+      // @ts-ignore
+      subscheme.properties.line_length = {
+        "description": "Number of characters",
+        "type": "integer",
+        "minimum": 1,
+        "default": 80
+      };
+      // @ts-ignore
+      subscheme.properties.heading_line_length = {
+        "description": "Number of characters for headings",
+        "type": "integer",
+        "minimum": 1,
+        "default": 80
+      };
+      // @ts-ignore
+      subscheme.properties.code_block_line_length = {
+        "description": "Number of characters for code blocks",
+        "type": "integer",
+        "minimum": 1,
+        "default": 80
+      };
+      // @ts-ignore
+      subscheme.properties.code_blocks = {
+        "description": "Include code blocks",
+        "type": "boolean",
+        "default": true
+      };
+      // @ts-ignore
+      subscheme.properties.tables = {
+        "description": "Include tables",
+        "type": "boolean",
+        "default": true
+      };
+      // @ts-ignore
+      subscheme.properties.headings = {
+        "description": "Include headings",
+        "type": "boolean",
+        "default": true
+      };
+      // @ts-ignore
+      subscheme.properties.strict = {
+        "description": "Strict length checking",
+        "type": "boolean",
+        "default": false
+      };
+      // @ts-ignore
+      subscheme.properties.stern = {
+        "description": "Stern length checking",
+        "type": "boolean",
+        "default": false
       };
       break;
     case "MD022":
-      subscheme.properties = {
-        "lines_above": {
-          "description": "Blank lines above heading",
-          "type": [
-            "integer",
-            "array"
-          ],
-          "items": {
-            "type": "integer"
-          },
-          "minimum": -1,
-          "default": 1
+      // @ts-ignore
+      subscheme.properties.lines_above = {
+        "description": "Blank lines above heading",
+        "type": [
+          "integer",
+          "array"
+        ],
+        "items": {
+          "type": "integer"
         },
-        "lines_below": {
-          "description": "Blank lines below heading",
-          "type": [
-            "integer",
-            "array"
-          ],
-          "items": {
-            "type": "integer"
-          },
-          "minimum": -1,
-          "default": 1
-        }
+        "minimum": -1,
+        "default": 1
+      };
+      // @ts-ignore
+      subscheme.properties.lines_below = {
+        "description": "Blank lines below heading",
+        "type": [
+          "integer",
+          "array"
+        ],
+        "items": {
+          "type": "integer"
+        },
+        "minimum": -1,
+        "default": 1
       };
       break;
     case "MD024":
-      subscheme.properties = {
-        "siblings_only": {
-          "description": "Only check sibling headings",
-          "type": "boolean",
-          "default": false
-        }
+      // @ts-ignore
+      subscheme.properties.siblings_only = {
+        "description": "Only check sibling headings",
+        "type": "boolean",
+        "default": false
       };
       break;
     case "MD026":
     case "MD036":
-      subscheme.properties = {
-        "punctuation": {
-          "description": "Punctuation characters",
-          "type": "string",
-          "default": (ruleName === "MD026") ? ".,;:!。，；：！" : ".,;:!?。，；：！？"
-        }
+      // @ts-ignore
+      subscheme.properties.punctuation = {
+        "description": "Punctuation characters",
+        "type": "string",
+        "default": (ruleName === "MD026") ? ".,;:!。，；：！" : ".,;:!?。，；：！？"
       };
       break;
     case "MD027":
-      subscheme.properties = {
-        "list_items": {
-          "description": "Include list items",
-          "type": "boolean",
-          "default": true
-        }
+      // @ts-ignore
+      subscheme.properties.list_items = {
+        "description": "Include list items",
+        "type": "boolean",
+        "default": true
       };
       break;
     case "MD029":
-      subscheme.properties = {
-        "style": {
-          "description": "List style",
-          "type": "string",
-          "enum": [
-            "one",
-            "ordered",
-            "one_or_ordered",
-            "zero"
-          ],
-          "default": "one_or_ordered"
-        }
+      // @ts-ignore
+      subscheme.properties.style = {
+        "description": "List style",
+        "type": "string",
+        "enum": [
+          "one",
+          "ordered",
+          "one_or_ordered",
+          "zero"
+        ],
+        "default": "one_or_ordered"
       };
       break;
     case "MD030":
-      subscheme.properties = {
-        "ul_single": {
-          "description": "Spaces for single-line unordered list items",
-          "type": "integer",
-          "minimum": 1,
-          "default": 1
-        },
-        "ol_single": {
-          "description": "Spaces for single-line ordered list items",
-          "type": "integer",
-          "minimum": 1,
-          "default": 1
-        },
-        "ul_multi": {
-          "description": "Spaces for multi-line unordered list items",
-          "type": "integer",
-          "minimum": 1,
-          "default": 1
-        },
-        "ol_multi": {
-          "description": "Spaces for multi-line ordered list items",
-          "type": "integer",
-          "minimum": 1,
-          "default": 1
-        }
+      // @ts-ignore
+      subscheme.properties.ul_single = {
+        "description": "Spaces for single-line unordered list items",
+        "type": "integer",
+        "minimum": 1,
+        "default": 1
+      };
+      // @ts-ignore
+      subscheme.properties.ol_single = {
+        "description": "Spaces for single-line ordered list items",
+        "type": "integer",
+        "minimum": 1,
+        "default": 1
+      };
+      // @ts-ignore
+      subscheme.properties.ul_multi = {
+        "description": "Spaces for multi-line unordered list items",
+        "type": "integer",
+        "minimum": 1,
+        "default": 1
+      };
+      // @ts-ignore
+      subscheme.properties.ol_multi = {
+        "description": "Spaces for multi-line ordered list items",
+        "type": "integer",
+        "minimum": 1,
+        "default": 1
       };
       break;
     case "MD031":
-      subscheme.properties = {
-        "list_items": {
-          "description": "Include list items",
-          "type": "boolean",
-          "default": true
-        }
+      // @ts-ignore
+      subscheme.properties.list_items = {
+        "description": "Include list items",
+        "type": "boolean",
+        "default": true
       };
       break;
     case "MD033":
-      subscheme.properties = {
-        "allowed_elements": {
-          "description": "Allowed elements",
-          "type": "array",
-          "items": {
-            "type": "string"
-          },
-          "default": []
+      // @ts-ignore
+      subscheme.properties.allowed_elements = {
+        "description": "Allowed elements",
+        "type": "array",
+        "items": {
+          "type": "string"
         },
-        "table_allowed_elements": {
-          "description": "Allowed elements in tables",
-          "type": "array",
-          "items": {
-            "type": "string"
-          },
-          "default": []
-        }
+        "default": []
+      };
+      // @ts-ignore
+      subscheme.properties.table_allowed_elements = {
+        "description": "Allowed elements in tables",
+        "type": "array",
+        "items": {
+          "type": "string"
+        },
+        "default": []
       };
       break;
     case "MD035":
-      subscheme.properties = {
-        "style": {
-          "description": "Horizontal rule style",
-          "type": "string",
-          "default": "consistent"
-        }
+      // @ts-ignore
+      subscheme.properties.style = {
+        "description": "Horizontal rule style",
+        "type": "string",
+        "default": "consistent"
       };
       break;
     case "MD040":
-      subscheme.properties = {
-        "allowed_languages": {
-          "description": "List of languages",
-          "type": "array",
-          "items": {
-            "type": "string"
-          },
-          "default": []
+      // @ts-ignore
+      subscheme.properties.allowed_languages = {
+        "description": "List of languages",
+        "type": "array",
+        "items": {
+          "type": "string"
         },
-        "language_only": {
-          "description": "Require language only",
-          "type": "boolean",
-          "default": false
-        }
+        "default": []
+      };
+      // @ts-ignore
+      subscheme.properties.language_only = {
+        "description": "Require language only",
+        "type": "boolean",
+        "default": false
       };
       break;
     case "MD025":
     case "MD041":
-      {
-        const md041Properties = (ruleName === "MD041") ?
-          {
-            "allow_preamble": {
-              "description": "Allow content before first heading",
-              "type": "boolean",
-              "default": false
-            }
-          } :
-          {};
-        subscheme.properties = {
-          ...md041Properties,
-          "front_matter_title": {
-            "description": "RegExp for matching title in front matter",
-            "type": "string",
-            "default": "^\\s*title\\s*[:=]"
-          },
-          "level": {
-            "description": "Heading level",
-            "type": "integer",
-            "minimum": 1,
-            "maximum": 6,
-            "default": 1
-          }
-        };
-      }
-      break;
-    case "MD043":
-      subscheme.properties = {
-        "headings": {
-          "description": "List of headings",
-          "type": "array",
-          "items": {
-            "type": "string",
-            "pattern": "^(\\*|\\+|\\?|#{1,6}\\s+\\S.*)$"
-          },
-          "default": []
-        },
-        "match_case": {
-          "description": "Match case of headings",
+      if (ruleName === "MD041") {
+        // @ts-ignore
+        subscheme.properties.allow_preamble = {
+          "description": "Allow content before first heading",
           "type": "boolean",
           "default": false
-        }
+        };
+      }
+      // @ts-ignore
+      subscheme.properties.front_matter_title = {
+        "description": "RegExp for matching title in front matter",
+        "type": "string",
+        "default": "^\\s*title\\s*[:=]"
+      };
+      // @ts-ignore
+      subscheme.properties.level = {
+        "description": "Heading level",
+        "type": "integer",
+        "minimum": 1,
+        "maximum": 6,
+        "default": 1
+      };
+      break;
+    case "MD043":
+      // @ts-ignore
+      subscheme.properties.headings = {
+        "description": "List of headings",
+        "type": "array",
+        "items": {
+          "type": "string",
+          "pattern": "^(\\*|\\+|\\?|#{1,6}\\s+\\S.*)$"
+        },
+        "default": []
+      };
+      // @ts-ignore
+      subscheme.properties.match_case = {
+        "description": "Match case of headings",
+        "type": "boolean",
+        "default": false
       };
       break;
     case "MD044":
-      subscheme.properties = {
-        "names": {
-          "description": "List of proper names",
-          "type": "array",
-          "items": {
-            "type": "string"
-          },
-          "default": []
+      // @ts-ignore
+      subscheme.properties.names = {
+        "description": "List of proper names",
+        "type": "array",
+        "items": {
+          "type": "string"
         },
-        "code_blocks": {
-          "description": "Include code blocks",
-          "type": "boolean",
-          "default": true
-        },
-        "html_elements": {
-          "description": "Include HTML elements",
-          "type": "boolean",
-          "default": true
-        }
+        "default": []
+      };
+      // @ts-ignore
+      subscheme.properties.code_blocks = {
+        "description": "Include code blocks",
+        "type": "boolean",
+        "default": true
+      };
+      // @ts-ignore
+      subscheme.properties.html_elements = {
+        "description": "Include HTML elements",
+        "type": "boolean",
+        "default": true
       };
       break;
     case "MD046":
-      subscheme.properties = {
-        "style": {
-          "description": "Block style",
-          "type": "string",
-          "enum": [
-            "consistent",
-            "fenced",
-            "indented"
-          ],
-          "default": "consistent"
-        }
+      // @ts-ignore
+      subscheme.properties.style = {
+        "description": "Block style",
+        "type": "string",
+        "enum": [
+          "consistent",
+          "fenced",
+          "indented"
+        ],
+        "default": "consistent"
       };
       break;
     case "MD048":
-      subscheme.properties = {
-        "style": {
-          "description": "Code fence style",
-          "type": "string",
-          "enum": [
-            "consistent",
-            "backtick",
-            "tilde"
-          ],
-          "default": "consistent"
-        }
+      // @ts-ignore
+      subscheme.properties.style = {
+        "description": "Code fence style",
+        "type": "string",
+        "enum": [
+          "consistent",
+          "backtick",
+          "tilde"
+        ],
+        "default": "consistent"
       };
       break;
     case "MD049":
     case "MD050":
-      subscheme.properties = {
-        "style": {
-          "description": (ruleName === "MD049") ? "Emphasis style" : "Strong style",
-          "type": "string",
-          "enum": [
-            "consistent",
-            "asterisk",
-            "underscore"
-          ],
-          "default": "consistent"
-        }
+      // @ts-ignore
+      subscheme.properties.style = {
+        "description": (ruleName === "MD049") ? "Emphasis style" : "Strong style",
+        "type": "string",
+        "enum": [
+          "consistent",
+          "asterisk",
+          "underscore"
+        ],
+        "default": "consistent"
       };
       break;
     case "MD051":
-      subscheme.properties = {
-        "ignore_case": {
-          "description": "Ignore case of fragments",
-          "type": "boolean",
-          "default": false
-        },
-        "ignored_pattern": {
-          "description": "Pattern for ignoring additional fragments",
-          "type": "string",
-          "default": ""
-        }
+      // @ts-ignore
+      subscheme.properties.ignore_case = {
+        "description": "Ignore case of fragments",
+        "type": "boolean",
+        "default": false
+      };
+      // @ts-ignore
+      subscheme.properties.ignored_pattern = {
+        "description": "Pattern for ignoring additional fragments",
+        "type": "string",
+        "default": ""
       };
       break;
     case "MD052":
-      subscheme.properties = {
-        "ignored_labels": {
-          "description": "Ignored link labels",
-          "type": "array",
-          "items": {
-            "type": "string"
-          },
-          "default": [ "x" ]
+      // @ts-ignore
+      subscheme.properties.ignored_labels = {
+        "description": "Ignored link labels",
+        "type": "array",
+        "items": {
+          "type": "string"
         },
-        "shortcut_syntax": {
-          "description": "Include shortcut syntax",
-          "type": "boolean",
-          "default": false
-        }
+        "default": [ "x" ]
+      };
+      // @ts-ignore
+      subscheme.properties.shortcut_syntax = {
+        "description": "Include shortcut syntax",
+        "type": "boolean",
+        "default": false
       };
       break;
     case "MD053":
-      subscheme.properties = {
-        "ignored_definitions": {
-          "description": "Ignored definitions",
-          "type": "array",
-          "items": {
-            "type": "string"
-          },
-          "default": [ "//" ]
-        }
+      // @ts-ignore
+      subscheme.properties.ignored_definitions = {
+        "description": "Ignored definitions",
+        "type": "array",
+        "items": {
+          "type": "string"
+        },
+        "default": [ "//" ]
       };
       break;
     case "MD054":
-      subscheme.properties = {
-        "autolink": {
-          "description": "Allow autolinks",
-          "type": "boolean",
-          "default": true
-        },
-        "inline": {
-          "description": "Allow inline links and images",
-          "type": "boolean",
-          "default": true
-        },
-        "full": {
-          "description": "Allow full reference links and images",
-          "type": "boolean",
-          "default": true
-        },
-        "collapsed": {
-          "description": "Allow collapsed reference links and images",
-          "type": "boolean",
-          "default": true
-        },
-        "shortcut": {
-          "description": "Allow shortcut reference links and images",
-          "type": "boolean",
-          "default": true
-        },
-        "url_inline": {
-          "description": "Allow URLs as inline links",
-          "type": "boolean",
-          "default": true
-        }
+      // @ts-ignore
+      subscheme.properties.autolink = {
+        "description": "Allow autolinks",
+        "type": "boolean",
+        "default": true
+      };
+      // @ts-ignore
+      subscheme.properties.inline = {
+        "description": "Allow inline links and images",
+        "type": "boolean",
+        "default": true
+      };
+      // @ts-ignore
+      subscheme.properties.full = {
+        "description": "Allow full reference links and images",
+        "type": "boolean",
+        "default": true
+      };
+      // @ts-ignore
+      subscheme.properties.collapsed = {
+        "description": "Allow collapsed reference links and images",
+        "type": "boolean",
+        "default": true
+      };
+      // @ts-ignore
+      subscheme.properties.shortcut = {
+        "description": "Allow shortcut reference links and images",
+        "type": "boolean",
+        "default": true
+      };
+      // @ts-ignore
+      subscheme.properties.url_inline = {
+        "description": "Allow URLs as inline links",
+        "type": "boolean",
+        "default": true
       };
       break;
     case "MD055":
-      subscheme.properties = {
-        "style": {
-          "description": "Table pipe style",
-          "type": "string",
-          "enum": [
-            "consistent",
-            "leading_only",
-            "trailing_only",
-            "leading_and_trailing",
-            "no_leading_or_trailing"
-          ],
-          "default": "consistent"
-        }
+      // @ts-ignore
+      subscheme.properties.style = {
+        "description": "Table pipe style",
+        "type": "string",
+        "enum": [
+          "consistent",
+          "leading_only",
+          "trailing_only",
+          "leading_and_trailing",
+          "no_leading_or_trailing"
+        ],
+        "default": "consistent"
       };
       break;
     case "MD059":
-      subscheme.properties = {
-        "prohibited_texts": {
-          "description": "Prohibited link texts",
-          "type": "array",
-          "items": {
-            "type": "string"
-          },
-          "default": [
-            "click here",
-            "here",
-            "link",
-            "more"
-          ]
-        }
+      // @ts-ignore
+      subscheme.properties.prohibited_texts = {
+        "description": "Prohibited link texts",
+        "type": "array",
+        "items": {
+          "type": "string"
+        },
+        "default": [
+          "click here",
+          "here",
+          "link",
+          "more"
+        ]
       };
       break;
     case "MD060":
-      subscheme.properties = {
-        "style": {
-          "description": "Table column style",
-          "type": "string",
-          "enum": [
-            "any",
-            "aligned",
-            "compact",
-            "tight"
-          ],
-          "default": "any"
-        }
+      // @ts-ignore
+      subscheme.properties.style = {
+        "description": "Table column style",
+        "type": "string",
+        "enum": [
+          "any",
+          "aligned",
+          "compact",
+          "tight"
+        ],
+        "default": "any"
       };
       break;
     default:
-      custom = false;
       break;
   }
-  if (custom) {
-    scheme.oneOf.push(subscheme);
-  }
+  /* eslint-enable camelcase */
   for (const name of rule.names) {
     schema.properties[name] = scheme;
     // Using $ref causes rule aliases not to get JSDoc comments
diff --git a/schema/markdownlint-config-schema-strict.json b/schema/markdownlint-config-schema-strict.json
index 1fe3a027..debc099d 100644
--- a/schema/markdownlint-config-schema-strict.json
+++ b/schema/markdownlint-config-schema-strict.json
@@ -46,6 +46,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "front_matter_title": {
               "description": "RegExp for matching title in front matter",
               "type": "string",
@@ -71,6 +79,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "front_matter_title": {
               "description": "RegExp for matching title in front matter",
               "type": "string",
@@ -96,6 +112,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "style": {
               "description": "Heading style",
               "type": "string",
@@ -129,6 +153,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "style": {
               "description": "Heading style",
               "type": "string",
@@ -162,6 +194,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "style": {
               "description": "List style",
               "type": "string",
@@ -194,6 +234,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "style": {
               "description": "List style",
               "type": "string",
@@ -221,6 +269,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -235,6 +297,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -254,6 +330,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "indent": {
               "description": "Spaces for indent",
               "type": "integer",
@@ -291,6 +375,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "indent": {
               "description": "Spaces for indent",
               "type": "integer",
@@ -328,6 +420,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "br_spaces": {
               "description": "Spaces for line break",
               "type": "integer",
@@ -364,6 +464,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "br_spaces": {
               "description": "Spaces for line break",
               "type": "integer",
@@ -400,6 +508,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "code_blocks": {
               "description": "Include code blocks",
               "type": "boolean",
@@ -439,6 +555,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "code_blocks": {
               "description": "Include code blocks",
               "type": "boolean",
@@ -473,6 +597,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -487,6 +625,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -506,6 +658,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "maximum": {
               "description": "Consecutive blank lines",
               "type": "integer",
@@ -532,6 +692,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "maximum": {
               "description": "Consecutive blank lines",
               "type": "integer",
@@ -558,6 +726,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "line_length": {
               "description": "Number of characters",
               "type": "integer",
@@ -621,6 +797,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "line_length": {
               "description": "Number of characters",
               "type": "integer",
@@ -679,6 +863,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -693,6 +891,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -707,6 +919,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -721,6 +947,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -735,6 +975,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -749,6 +1003,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -763,6 +1031,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -777,6 +1059,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -791,6 +1087,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -805,6 +1115,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -824,6 +1148,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "lines_above": {
               "description": "Blank lines above heading",
               "type": [
@@ -868,6 +1200,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "lines_above": {
               "description": "Blank lines above heading",
               "type": [
@@ -907,6 +1247,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -921,6 +1275,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -940,6 +1308,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "siblings_only": {
               "description": "Only check sibling headings",
               "type": "boolean",
@@ -965,6 +1341,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "siblings_only": {
               "description": "Only check sibling headings",
               "type": "boolean",
@@ -990,6 +1374,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "front_matter_title": {
               "description": "RegExp for matching title in front matter",
               "type": "string",
@@ -1022,6 +1414,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "front_matter_title": {
               "description": "RegExp for matching title in front matter",
               "type": "string",
@@ -1054,6 +1454,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "front_matter_title": {
               "description": "RegExp for matching title in front matter",
               "type": "string",
@@ -1086,6 +1494,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "punctuation": {
               "description": "Punctuation characters",
               "type": "string",
@@ -1111,6 +1527,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "punctuation": {
               "description": "Punctuation characters",
               "type": "string",
@@ -1136,6 +1560,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "list_items": {
               "description": "Include list items",
               "type": "boolean",
@@ -1161,6 +1593,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "list_items": {
               "description": "Include list items",
               "type": "boolean",
@@ -1181,6 +1621,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -1195,6 +1649,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -1214,6 +1682,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "style": {
               "description": "List style",
               "type": "string",
@@ -1245,6 +1721,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "style": {
               "description": "List style",
               "type": "string",
@@ -1276,6 +1760,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "ul_single": {
               "description": "Spaces for single-line unordered list items",
               "type": "integer",
@@ -1320,6 +1812,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "ul_single": {
               "description": "Spaces for single-line unordered list items",
               "type": "integer",
@@ -1364,6 +1864,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "list_items": {
               "description": "Include list items",
               "type": "boolean",
@@ -1389,6 +1897,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "list_items": {
               "description": "Include list items",
               "type": "boolean",
@@ -1409,6 +1925,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -1423,6 +1953,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -1442,6 +1986,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "allowed_elements": {
               "description": "Allowed elements",
               "type": "array",
@@ -1478,6 +2030,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "allowed_elements": {
               "description": "Allowed elements",
               "type": "array",
@@ -1509,6 +2069,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -1523,6 +2097,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -1542,6 +2130,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "style": {
               "description": "Horizontal rule style",
               "type": "string",
@@ -1567,6 +2163,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "style": {
               "description": "Horizontal rule style",
               "type": "string",
@@ -1592,6 +2196,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "punctuation": {
               "description": "Punctuation characters",
               "type": "string",
@@ -1617,6 +2229,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "punctuation": {
               "description": "Punctuation characters",
               "type": "string",
@@ -1637,6 +2257,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -1651,6 +2285,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -1665,6 +2313,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -1679,6 +2341,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -1693,6 +2369,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -1707,6 +2397,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -1726,6 +2430,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "allowed_languages": {
               "description": "List of languages",
               "type": "array",
@@ -1759,6 +2471,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "allowed_languages": {
               "description": "List of languages",
               "type": "array",
@@ -1792,6 +2512,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "allow_preamble": {
               "description": "Allow content before first heading",
               "type": "boolean",
@@ -1829,6 +2557,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "allow_preamble": {
               "description": "Allow content before first heading",
               "type": "boolean",
@@ -1866,6 +2602,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "allow_preamble": {
               "description": "Allow content before first heading",
               "type": "boolean",
@@ -1898,6 +2642,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -1912,6 +2670,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -1931,6 +2703,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "headings": {
               "description": "List of headings",
               "type": "array",
@@ -1965,6 +2745,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "headings": {
               "description": "List of headings",
               "type": "array",
@@ -1999,6 +2787,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "names": {
               "description": "List of proper names",
               "type": "array",
@@ -2037,6 +2833,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "names": {
               "description": "List of proper names",
               "type": "array",
@@ -2070,6 +2874,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -2084,6 +2902,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -2103,6 +2935,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "style": {
               "description": "Block style",
               "type": "string",
@@ -2133,6 +2973,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "style": {
               "description": "Block style",
               "type": "string",
@@ -2158,6 +3006,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -2172,6 +3034,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -2191,6 +3067,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "style": {
               "description": "Code fence style",
               "type": "string",
@@ -2221,6 +3105,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "style": {
               "description": "Code fence style",
               "type": "string",
@@ -2251,6 +3143,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "style": {
               "description": "Emphasis style",
               "type": "string",
@@ -2281,6 +3181,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "style": {
               "description": "Emphasis style",
               "type": "string",
@@ -2311,6 +3219,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "style": {
               "description": "Strong style",
               "type": "string",
@@ -2341,6 +3257,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "style": {
               "description": "Strong style",
               "type": "string",
@@ -2371,6 +3295,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "ignore_case": {
               "description": "Ignore case of fragments",
               "type": "boolean",
@@ -2401,6 +3333,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "ignore_case": {
               "description": "Ignore case of fragments",
               "type": "boolean",
@@ -2431,6 +3371,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "ignored_labels": {
               "description": "Ignored link labels",
               "type": "array",
@@ -2466,6 +3414,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "ignored_labels": {
               "description": "Ignored link labels",
               "type": "array",
@@ -2501,6 +3457,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "ignored_definitions": {
               "description": "Ignored definitions",
               "type": "array",
@@ -2531,6 +3495,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "ignored_definitions": {
               "description": "Ignored definitions",
               "type": "array",
@@ -2561,6 +3533,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "autolink": {
               "description": "Allow autolinks",
               "type": "boolean",
@@ -2611,6 +3591,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "autolink": {
               "description": "Allow autolinks",
               "type": "boolean",
@@ -2661,6 +3649,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "style": {
               "description": "Table pipe style",
               "type": "string",
@@ -2693,6 +3689,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "style": {
               "description": "Table pipe style",
               "type": "string",
@@ -2720,6 +3724,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -2734,6 +3752,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -2748,6 +3780,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -2762,6 +3808,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -2781,6 +3841,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "prohibited_texts": {
               "description": "Prohibited link texts",
               "type": "array",
@@ -2814,6 +3882,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "prohibited_texts": {
               "description": "Prohibited link texts",
               "type": "array",
@@ -2847,6 +3923,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "style": {
               "description": "Table column style",
               "type": "string",
@@ -2878,6 +3962,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "style": {
               "description": "Table column style",
               "type": "string",
diff --git a/schema/markdownlint-config-schema.json b/schema/markdownlint-config-schema.json
index bc084f13..8b6d5d0d 100644
--- a/schema/markdownlint-config-schema.json
+++ b/schema/markdownlint-config-schema.json
@@ -46,6 +46,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "front_matter_title": {
               "description": "RegExp for matching title in front matter",
               "type": "string",
@@ -71,6 +79,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "front_matter_title": {
               "description": "RegExp for matching title in front matter",
               "type": "string",
@@ -96,6 +112,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "style": {
               "description": "Heading style",
               "type": "string",
@@ -129,6 +153,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "style": {
               "description": "Heading style",
               "type": "string",
@@ -162,6 +194,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "style": {
               "description": "List style",
               "type": "string",
@@ -194,6 +234,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "style": {
               "description": "List style",
               "type": "string",
@@ -221,6 +269,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -235,6 +297,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -254,6 +330,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "indent": {
               "description": "Spaces for indent",
               "type": "integer",
@@ -291,6 +375,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "indent": {
               "description": "Spaces for indent",
               "type": "integer",
@@ -328,6 +420,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "br_spaces": {
               "description": "Spaces for line break",
               "type": "integer",
@@ -364,6 +464,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "br_spaces": {
               "description": "Spaces for line break",
               "type": "integer",
@@ -400,6 +508,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "code_blocks": {
               "description": "Include code blocks",
               "type": "boolean",
@@ -439,6 +555,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "code_blocks": {
               "description": "Include code blocks",
               "type": "boolean",
@@ -473,6 +597,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -487,6 +625,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -506,6 +658,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "maximum": {
               "description": "Consecutive blank lines",
               "type": "integer",
@@ -532,6 +692,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "maximum": {
               "description": "Consecutive blank lines",
               "type": "integer",
@@ -558,6 +726,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "line_length": {
               "description": "Number of characters",
               "type": "integer",
@@ -621,6 +797,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "line_length": {
               "description": "Number of characters",
               "type": "integer",
@@ -679,6 +863,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -693,6 +891,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -707,6 +919,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -721,6 +947,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -735,6 +975,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -749,6 +1003,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -763,6 +1031,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -777,6 +1059,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -791,6 +1087,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -805,6 +1115,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -824,6 +1148,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "lines_above": {
               "description": "Blank lines above heading",
               "type": [
@@ -868,6 +1200,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "lines_above": {
               "description": "Blank lines above heading",
               "type": [
@@ -907,6 +1247,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -921,6 +1275,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -940,6 +1308,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "siblings_only": {
               "description": "Only check sibling headings",
               "type": "boolean",
@@ -965,6 +1341,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "siblings_only": {
               "description": "Only check sibling headings",
               "type": "boolean",
@@ -990,6 +1374,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "front_matter_title": {
               "description": "RegExp for matching title in front matter",
               "type": "string",
@@ -1022,6 +1414,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "front_matter_title": {
               "description": "RegExp for matching title in front matter",
               "type": "string",
@@ -1054,6 +1454,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "front_matter_title": {
               "description": "RegExp for matching title in front matter",
               "type": "string",
@@ -1086,6 +1494,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "punctuation": {
               "description": "Punctuation characters",
               "type": "string",
@@ -1111,6 +1527,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "punctuation": {
               "description": "Punctuation characters",
               "type": "string",
@@ -1136,6 +1560,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "list_items": {
               "description": "Include list items",
               "type": "boolean",
@@ -1161,6 +1593,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "list_items": {
               "description": "Include list items",
               "type": "boolean",
@@ -1181,6 +1621,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -1195,6 +1649,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -1214,6 +1682,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "style": {
               "description": "List style",
               "type": "string",
@@ -1245,6 +1721,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "style": {
               "description": "List style",
               "type": "string",
@@ -1276,6 +1760,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "ul_single": {
               "description": "Spaces for single-line unordered list items",
               "type": "integer",
@@ -1320,6 +1812,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "ul_single": {
               "description": "Spaces for single-line unordered list items",
               "type": "integer",
@@ -1364,6 +1864,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "list_items": {
               "description": "Include list items",
               "type": "boolean",
@@ -1389,6 +1897,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "list_items": {
               "description": "Include list items",
               "type": "boolean",
@@ -1409,6 +1925,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -1423,6 +1953,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -1442,6 +1986,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "allowed_elements": {
               "description": "Allowed elements",
               "type": "array",
@@ -1478,6 +2030,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "allowed_elements": {
               "description": "Allowed elements",
               "type": "array",
@@ -1509,6 +2069,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -1523,6 +2097,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -1542,6 +2130,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "style": {
               "description": "Horizontal rule style",
               "type": "string",
@@ -1567,6 +2163,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "style": {
               "description": "Horizontal rule style",
               "type": "string",
@@ -1592,6 +2196,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "punctuation": {
               "description": "Punctuation characters",
               "type": "string",
@@ -1617,6 +2229,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "punctuation": {
               "description": "Punctuation characters",
               "type": "string",
@@ -1637,6 +2257,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -1651,6 +2285,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -1665,6 +2313,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -1679,6 +2341,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -1693,6 +2369,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -1707,6 +2397,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -1726,6 +2430,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "allowed_languages": {
               "description": "List of languages",
               "type": "array",
@@ -1759,6 +2471,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "allowed_languages": {
               "description": "List of languages",
               "type": "array",
@@ -1792,6 +2512,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "allow_preamble": {
               "description": "Allow content before first heading",
               "type": "boolean",
@@ -1829,6 +2557,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "allow_preamble": {
               "description": "Allow content before first heading",
               "type": "boolean",
@@ -1866,6 +2602,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "allow_preamble": {
               "description": "Allow content before first heading",
               "type": "boolean",
@@ -1898,6 +2642,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -1912,6 +2670,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -1931,6 +2703,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "headings": {
               "description": "List of headings",
               "type": "array",
@@ -1965,6 +2745,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "headings": {
               "description": "List of headings",
               "type": "array",
@@ -1999,6 +2787,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "names": {
               "description": "List of proper names",
               "type": "array",
@@ -2037,6 +2833,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "names": {
               "description": "List of proper names",
               "type": "array",
@@ -2070,6 +2874,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -2084,6 +2902,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -2103,6 +2935,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "style": {
               "description": "Block style",
               "type": "string",
@@ -2133,6 +2973,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "style": {
               "description": "Block style",
               "type": "string",
@@ -2158,6 +3006,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -2172,6 +3034,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -2191,6 +3067,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "style": {
               "description": "Code fence style",
               "type": "string",
@@ -2221,6 +3105,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "style": {
               "description": "Code fence style",
               "type": "string",
@@ -2251,6 +3143,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "style": {
               "description": "Emphasis style",
               "type": "string",
@@ -2281,6 +3181,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "style": {
               "description": "Emphasis style",
               "type": "string",
@@ -2311,6 +3219,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "style": {
               "description": "Strong style",
               "type": "string",
@@ -2341,6 +3257,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "style": {
               "description": "Strong style",
               "type": "string",
@@ -2371,6 +3295,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "ignore_case": {
               "description": "Ignore case of fragments",
               "type": "boolean",
@@ -2401,6 +3333,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "ignore_case": {
               "description": "Ignore case of fragments",
               "type": "boolean",
@@ -2431,6 +3371,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "ignored_labels": {
               "description": "Ignored link labels",
               "type": "array",
@@ -2466,6 +3414,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "ignored_labels": {
               "description": "Ignored link labels",
               "type": "array",
@@ -2501,6 +3457,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "ignored_definitions": {
               "description": "Ignored definitions",
               "type": "array",
@@ -2531,6 +3495,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "ignored_definitions": {
               "description": "Ignored definitions",
               "type": "array",
@@ -2561,6 +3533,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "autolink": {
               "description": "Allow autolinks",
               "type": "boolean",
@@ -2611,6 +3591,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "autolink": {
               "description": "Allow autolinks",
               "type": "boolean",
@@ -2661,6 +3649,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "style": {
               "description": "Table pipe style",
               "type": "string",
@@ -2693,6 +3689,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "style": {
               "description": "Table pipe style",
               "type": "string",
@@ -2720,6 +3724,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -2734,6 +3752,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -2748,6 +3780,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -2762,6 +3808,20 @@
           "enum": [
             "error"
           ]
+        },
+        {
+          "type": "object",
+          "additionalProperties": false,
+          "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            }
+          }
         }
       ],
       "default": true
@@ -2781,6 +3841,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "prohibited_texts": {
               "description": "Prohibited link texts",
               "type": "array",
@@ -2814,6 +3882,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "prohibited_texts": {
               "description": "Prohibited link texts",
               "type": "array",
@@ -2847,6 +3923,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "style": {
               "description": "Table column style",
               "type": "string",
@@ -2878,6 +3962,14 @@
           "type": "object",
           "additionalProperties": false,
           "properties": {
+            "severity": {
+              "description": "Rule severity",
+              "type": "string",
+              "enum": [
+                "error"
+              ],
+              "default": "error"
+            },
             "style": {
               "description": "Table column style",
               "type": "string",
diff --git a/test/configure-file-with-severity.md b/test/configure-file-with-severity.md
new file mode 100644
index 00000000..4f5cd27f
--- /dev/null
+++ b/test/configure-file-with-severity.md
@@ -0,0 +1,58 @@
+# Configure File With Severity
+
+Text * text* {MD037}
+
+Text ` text` {MD038}
+
+Text [ text](.) {MD039}
+
++ List item {MD004}
+
+Text (text)[.] {MD011}
+
+2. List item {MD029}
+
+<!-- markdownlint-disable -->
+
+Text * text*
+
+Text ` text`
+
+Text [ text](.)
+
++ List item
+
+Text (text)[.]
+
+2. List item
+
+<!-- markdownlint-restore -->
+
+Text * text* {MD037}
+
+Text ` text` {MD038}
+
+Text [ text](.) {MD039}
+
++ List item {MD004}
+
+Text (text)[.] {MD011}
+
+2. List item {MD029}
+
+<!-- markdownlint-configure-file {
+  "default": false,
+  "MD037": "error",
+  "MD038": "error",
+  "MD039": "error",
+  "MD004": {
+    "severity": "error",
+    "style": "dash"
+  },
+  "MD011": {
+    "severity": "error"
+  },
+  "MD029": {
+    "severity": "error"
+  }
+} -->
diff --git a/test/markdownlint-test-custom-rules.mjs b/test/markdownlint-test-custom-rules.mjs
index da3d5088..5da9a86a 100644
--- a/test/markdownlint-test-custom-rules.mjs
+++ b/test/markdownlint-test-custom-rules.mjs
@@ -29,13 +29,14 @@ test("customRulesV0", (t) => new Promise((resolve) => {
   };
   lintAsync(options, function callback(err, actualResult) {
     t.falsy(err);
-    const expectedResult = {};
-    expectedResult[customRulesMd] = {
-      "any-blockquote-markdown-it": [ 12 ],
-      "any-blockquote-micromark": [ 12 ],
-      "every-n-lines": [ 2, 4, 6, 10, 12 ],
-      "first-line": [ 1 ],
-      "letters-E-X": [ 3, 7 ]
+    const expectedResult = {
+      [customRulesMd]: {
+        "any-blockquote-markdown-it": [ 12 ],
+        "any-blockquote-micromark": [ 12 ],
+        "every-n-lines": [ 2, 4, 6, 10, 12 ],
+        "first-line": [ 1 ],
+        "letters-E-X": [ 3, 7 ]
+      }
     };
     t.deepEqual(actualResult, expectedResult, "Undetected issues.");
     // @ts-ignore
@@ -103,93 +104,94 @@ test("customRulesV1", (t) => new Promise((resolve) => {
   };
   lintAsync(options, function callback(err, actualResult) {
     t.falsy(err);
-    const expectedResult = {};
-    expectedResult[customRulesMd] = [
-      { "lineNumber": 12,
-        "ruleName": "any-blockquote-markdown-it",
-        "ruleAlias": "any-blockquote-markdown-it",
-        "ruleDescription": "Rule that reports an error for any blockquote",
-        "ruleInformation":
-          `${homepage}/blob/main/test/rules/any-blockquote.js`,
-        "errorDetail": "Blockquote spans 1 line(s).",
-        "errorContext": "> Blockquote",
-        "errorRange": null },
-      { "lineNumber": 12,
-        "ruleName": "any-blockquote-micromark",
-        "ruleAlias": "any-blockquote-micromark",
-        "ruleDescription": "Rule that reports an error for any blockquote",
-        "ruleInformation":
-          `${homepage}/blob/main/test/rules/any-blockquote.js`,
-        "errorDetail": "Blockquote spans 1 line(s).",
-        "errorContext": "> Blockquote",
-        "errorRange": null },
-      { "lineNumber": 2,
-        "ruleName": "every-n-lines",
-        "ruleAlias": "every-n-lines",
-        "ruleDescription": "Rule that reports an error every N lines",
-        "ruleInformation": null,
-        "errorDetail": "Line number 2",
-        "errorContext": null,
-        "errorRange": null },
-      { "lineNumber": 4,
-        "ruleName": "every-n-lines",
-        "ruleAlias": "every-n-lines",
-        "ruleDescription": "Rule that reports an error every N lines",
-        "ruleInformation": null,
-        "errorDetail": "Line number 4",
-        "errorContext": null,
-        "errorRange": null },
-      { "lineNumber": 6,
-        "ruleName": "every-n-lines",
-        "ruleAlias": "every-n-lines",
-        "ruleDescription": "Rule that reports an error every N lines",
-        "ruleInformation": null,
-        "errorDetail": "Line number 6",
-        "errorContext": null,
-        "errorRange": null },
-      { "lineNumber": 10,
-        "ruleName": "every-n-lines",
-        "ruleAlias": "every-n-lines",
-        "ruleDescription": "Rule that reports an error every N lines",
-        "ruleInformation": null,
-        "errorDetail": "Line number 10",
-        "errorContext": null,
-        "errorRange": null },
-      { "lineNumber": 12,
-        "ruleName": "every-n-lines",
-        "ruleAlias": "every-n-lines",
-        "ruleDescription": "Rule that reports an error every N lines",
-        "ruleInformation": null,
-        "errorDetail": "Line number 12",
-        "errorContext": null,
-        "errorRange": null },
-      { "lineNumber": 1,
-        "ruleName": "first-line",
-        "ruleAlias": "first-line",
-        "ruleDescription": "Rule that reports an error for the first line",
-        "ruleInformation": null,
-        "errorDetail": null,
-        "errorContext": null,
-        "errorRange": null },
-      { "lineNumber": 3,
-        "ruleName": "letters-E-X",
-        "ruleAlias": "letter-E-letter-X",
-        "ruleDescription":
-          "Rule that reports an error for lines with the letters 'EX'",
-        "ruleInformation": `${homepage}/blob/main/test/rules/letters-E-X.js`,
-        "errorDetail": null,
-        "errorContext": "text",
-        "errorRange": null },
-      { "lineNumber": 7,
-        "ruleName": "letters-E-X",
-        "ruleAlias": "letter-E-letter-X",
-        "ruleDescription":
-          "Rule that reports an error for lines with the letters 'EX'",
-        "ruleInformation": `${homepage}/blob/main/test/rules/letters-E-X.js`,
-        "errorDetail": null,
-        "errorContext": "text",
-        "errorRange": null }
-    ];
+    const expectedResult = {
+      [customRulesMd]: [
+        { "lineNumber": 12,
+          "ruleName": "any-blockquote-markdown-it",
+          "ruleAlias": "any-blockquote-markdown-it",
+          "ruleDescription": "Rule that reports an error for any blockquote",
+          "ruleInformation":
+            `${homepage}/blob/main/test/rules/any-blockquote.js`,
+          "errorDetail": "Blockquote spans 1 line(s).",
+          "errorContext": "> Blockquote",
+          "errorRange": null },
+        { "lineNumber": 12,
+          "ruleName": "any-blockquote-micromark",
+          "ruleAlias": "any-blockquote-micromark",
+          "ruleDescription": "Rule that reports an error for any blockquote",
+          "ruleInformation":
+            `${homepage}/blob/main/test/rules/any-blockquote.js`,
+          "errorDetail": "Blockquote spans 1 line(s).",
+          "errorContext": "> Blockquote",
+          "errorRange": null },
+        { "lineNumber": 2,
+          "ruleName": "every-n-lines",
+          "ruleAlias": "every-n-lines",
+          "ruleDescription": "Rule that reports an error every N lines",
+          "ruleInformation": null,
+          "errorDetail": "Line number 2",
+          "errorContext": null,
+          "errorRange": null },
+        { "lineNumber": 4,
+          "ruleName": "every-n-lines",
+          "ruleAlias": "every-n-lines",
+          "ruleDescription": "Rule that reports an error every N lines",
+          "ruleInformation": null,
+          "errorDetail": "Line number 4",
+          "errorContext": null,
+          "errorRange": null },
+        { "lineNumber": 6,
+          "ruleName": "every-n-lines",
+          "ruleAlias": "every-n-lines",
+          "ruleDescription": "Rule that reports an error every N lines",
+          "ruleInformation": null,
+          "errorDetail": "Line number 6",
+          "errorContext": null,
+          "errorRange": null },
+        { "lineNumber": 10,
+          "ruleName": "every-n-lines",
+          "ruleAlias": "every-n-lines",
+          "ruleDescription": "Rule that reports an error every N lines",
+          "ruleInformation": null,
+          "errorDetail": "Line number 10",
+          "errorContext": null,
+          "errorRange": null },
+        { "lineNumber": 12,
+          "ruleName": "every-n-lines",
+          "ruleAlias": "every-n-lines",
+          "ruleDescription": "Rule that reports an error every N lines",
+          "ruleInformation": null,
+          "errorDetail": "Line number 12",
+          "errorContext": null,
+          "errorRange": null },
+        { "lineNumber": 1,
+          "ruleName": "first-line",
+          "ruleAlias": "first-line",
+          "ruleDescription": "Rule that reports an error for the first line",
+          "ruleInformation": null,
+          "errorDetail": null,
+          "errorContext": null,
+          "errorRange": null },
+        { "lineNumber": 3,
+          "ruleName": "letters-E-X",
+          "ruleAlias": "letter-E-letter-X",
+          "ruleDescription":
+            "Rule that reports an error for lines with the letters 'EX'",
+          "ruleInformation": `${homepage}/blob/main/test/rules/letters-E-X.js`,
+          "errorDetail": null,
+          "errorContext": "text",
+          "errorRange": null },
+        { "lineNumber": 7,
+          "ruleName": "letters-E-X",
+          "ruleAlias": "letter-E-letter-X",
+          "ruleDescription":
+            "Rule that reports an error for lines with the letters 'EX'",
+          "ruleInformation": `${homepage}/blob/main/test/rules/letters-E-X.js`,
+          "errorDetail": null,
+          "errorContext": "text",
+          "errorRange": null }
+      ]
+    };
     t.deepEqual(actualResult, expectedResult, "Undetected issues.");
     // @ts-ignore
     const actualMessage = actualResult.toString();
@@ -236,83 +238,84 @@ test("customRulesV2", (t) => new Promise((resolve) => {
   };
   lintAsync(options, function callback(err, actualResult) {
     t.falsy(err);
-    const expectedResult = {};
-    expectedResult[customRulesMd] = [
-      { "lineNumber": 12,
-        "ruleNames": [ "any-blockquote-markdown-it" ],
-        "ruleDescription": "Rule that reports an error for any blockquote",
-        "ruleInformation":
-          `${homepage}/blob/main/test/rules/any-blockquote.js`,
-        "errorDetail": "Blockquote spans 1 line(s).",
-        "errorContext": "> Blockquote",
-        "errorRange": null },
-      { "lineNumber": 12,
-        "ruleNames": [ "any-blockquote-micromark" ],
-        "ruleDescription": "Rule that reports an error for any blockquote",
-        "ruleInformation":
-          `${homepage}/blob/main/test/rules/any-blockquote.js`,
-        "errorDetail": "Blockquote spans 1 line(s).",
-        "errorContext": "> Blockquote",
-        "errorRange": null },
-      { "lineNumber": 2,
-        "ruleNames": [ "every-n-lines" ],
-        "ruleDescription": "Rule that reports an error every N lines",
-        "ruleInformation": null,
-        "errorDetail": "Line number 2",
-        "errorContext": null,
-        "errorRange": null },
-      { "lineNumber": 4,
-        "ruleNames": [ "every-n-lines" ],
-        "ruleDescription": "Rule that reports an error every N lines",
-        "ruleInformation": null,
-        "errorDetail": "Line number 4",
-        "errorContext": null,
-        "errorRange": null },
-      { "lineNumber": 6,
-        "ruleNames": [ "every-n-lines" ],
-        "ruleDescription": "Rule that reports an error every N lines",
-        "ruleInformation": null,
-        "errorDetail": "Line number 6",
-        "errorContext": null,
-        "errorRange": null },
-      { "lineNumber": 10,
-        "ruleNames": [ "every-n-lines" ],
-        "ruleDescription": "Rule that reports an error every N lines",
-        "ruleInformation": null,
-        "errorDetail": "Line number 10",
-        "errorContext": null,
-        "errorRange": null },
-      { "lineNumber": 12,
-        "ruleNames": [ "every-n-lines" ],
-        "ruleDescription": "Rule that reports an error every N lines",
-        "ruleInformation": null,
-        "errorDetail": "Line number 12",
-        "errorContext": null,
-        "errorRange": null },
-      { "lineNumber": 1,
-        "ruleNames": [ "first-line" ],
-        "ruleDescription": "Rule that reports an error for the first line",
-        "ruleInformation": null,
-        "errorDetail": null,
-        "errorContext": null,
-        "errorRange": null },
-      { "lineNumber": 3,
-        "ruleNames": [ "letters-E-X", "letter-E-letter-X", "contains-ex" ],
-        "ruleDescription":
-          "Rule that reports an error for lines with the letters 'EX'",
-        "ruleInformation": `${homepage}/blob/main/test/rules/letters-E-X.js`,
-        "errorDetail": null,
-        "errorContext": "text",
-        "errorRange": null },
-      { "lineNumber": 7,
-        "ruleNames": [ "letters-E-X", "letter-E-letter-X", "contains-ex" ],
-        "ruleDescription":
-          "Rule that reports an error for lines with the letters 'EX'",
-        "ruleInformation": `${homepage}/blob/main/test/rules/letters-E-X.js`,
-        "errorDetail": null,
-        "errorContext": "text",
-        "errorRange": null }
-    ];
+    const expectedResult = {
+      [customRulesMd]: [
+        { "lineNumber": 12,
+          "ruleNames": [ "any-blockquote-markdown-it" ],
+          "ruleDescription": "Rule that reports an error for any blockquote",
+          "ruleInformation":
+            `${homepage}/blob/main/test/rules/any-blockquote.js`,
+          "errorDetail": "Blockquote spans 1 line(s).",
+          "errorContext": "> Blockquote",
+          "errorRange": null },
+        { "lineNumber": 12,
+          "ruleNames": [ "any-blockquote-micromark" ],
+          "ruleDescription": "Rule that reports an error for any blockquote",
+          "ruleInformation":
+            `${homepage}/blob/main/test/rules/any-blockquote.js`,
+          "errorDetail": "Blockquote spans 1 line(s).",
+          "errorContext": "> Blockquote",
+          "errorRange": null },
+        { "lineNumber": 2,
+          "ruleNames": [ "every-n-lines" ],
+          "ruleDescription": "Rule that reports an error every N lines",
+          "ruleInformation": null,
+          "errorDetail": "Line number 2",
+          "errorContext": null,
+          "errorRange": null },
+        { "lineNumber": 4,
+          "ruleNames": [ "every-n-lines" ],
+          "ruleDescription": "Rule that reports an error every N lines",
+          "ruleInformation": null,
+          "errorDetail": "Line number 4",
+          "errorContext": null,
+          "errorRange": null },
+        { "lineNumber": 6,
+          "ruleNames": [ "every-n-lines" ],
+          "ruleDescription": "Rule that reports an error every N lines",
+          "ruleInformation": null,
+          "errorDetail": "Line number 6",
+          "errorContext": null,
+          "errorRange": null },
+        { "lineNumber": 10,
+          "ruleNames": [ "every-n-lines" ],
+          "ruleDescription": "Rule that reports an error every N lines",
+          "ruleInformation": null,
+          "errorDetail": "Line number 10",
+          "errorContext": null,
+          "errorRange": null },
+        { "lineNumber": 12,
+          "ruleNames": [ "every-n-lines" ],
+          "ruleDescription": "Rule that reports an error every N lines",
+          "ruleInformation": null,
+          "errorDetail": "Line number 12",
+          "errorContext": null,
+          "errorRange": null },
+        { "lineNumber": 1,
+          "ruleNames": [ "first-line" ],
+          "ruleDescription": "Rule that reports an error for the first line",
+          "ruleInformation": null,
+          "errorDetail": null,
+          "errorContext": null,
+          "errorRange": null },
+        { "lineNumber": 3,
+          "ruleNames": [ "letters-E-X", "letter-E-letter-X", "contains-ex" ],
+          "ruleDescription":
+            "Rule that reports an error for lines with the letters 'EX'",
+          "ruleInformation": `${homepage}/blob/main/test/rules/letters-E-X.js`,
+          "errorDetail": null,
+          "errorContext": "text",
+          "errorRange": null },
+        { "lineNumber": 7,
+          "ruleNames": [ "letters-E-X", "letter-E-letter-X", "contains-ex" ],
+          "ruleDescription":
+            "Rule that reports an error for lines with the letters 'EX'",
+          "ruleInformation": `${homepage}/blob/main/test/rules/letters-E-X.js`,
+          "errorDetail": null,
+          "errorContext": "text",
+          "errorRange": null }
+      ]
+    };
     t.deepEqual(actualResult, expectedResult, "Undetected issues.");
     // @ts-ignore
     const actualMessage = actualResult.toString();
@@ -366,13 +369,14 @@ test("customRulesConfig", (t) => new Promise((resolve) => {
   };
   lintAsync(options, function callback(err, actualResult) {
     t.falsy(err);
-    const expectedResult = {};
-    expectedResult[customRulesMd] = {
-      "any-blockquote-markdown-it": [ 12 ],
-      "any-blockquote-micromark": [ 12 ],
-      "every-n-lines": [ 3, 6, 12 ],
-      "first-line": [ 1 ],
-      "letters-E-X": [ 7 ]
+    const expectedResult = {
+      [customRulesMd]: {
+        "any-blockquote-markdown-it": [ 12 ],
+        "any-blockquote-micromark": [ 12 ],
+        "every-n-lines": [ 3, 6, 12 ],
+        "first-line": [ 1 ],
+        "letters-E-X": [ 7 ]
+      }
     };
     t.deepEqual(actualResult, expectedResult, "Undetected issues.");
     resolve();
@@ -445,6 +449,7 @@ test("customRulesBadProperty", (t) => {
     const { propertyName, propertyValues } = testCase;
     for (const propertyValue of propertyValues) {
       const badRule = { ...customRules.firstLine };
+      // @ts-ignore
       badRule[propertyName] = propertyValue;
       /** @type {import("markdownlint").Options} */
       const options = {
@@ -1211,6 +1216,7 @@ test("customRulesOnErrorBad", (t) => {
   ]) {
     const { propertyName, subPropertyName, propertyValues } = testCase;
     for (const propertyValue of propertyValues) {
+      /** @type {Object<string, any>} */
       const badObject = {
         "lineNumber": 1
       };
@@ -1232,6 +1238,7 @@ test("customRulesOnErrorBad", (t) => {
             "tags": [ "tag" ],
             "parser": "none",
             "function": function onErrorBad(params, onError) {
+              // @ts-ignore
               onError(badObject);
             }
           }
@@ -1283,6 +1290,7 @@ test("customRulesOnErrorInvalid", (t) => {
   ]) {
     const { propertyName, subPropertyName, propertyValues } = testCase;
     for (const propertyValue of propertyValues) {
+      /** @type {Object<string, any>} */
       const badObject = {
         "lineNumber": 1
       };
@@ -1304,6 +1312,7 @@ test("customRulesOnErrorInvalid", (t) => {
             "tags": [ "tag" ],
             "parser": "none",
             "function": function onErrorInvalid(params, onError) {
+              // @ts-ignore
               onError(badObject);
             }
           }
@@ -1361,6 +1370,7 @@ test("customRulesOnErrorValid", (t) => {
   ]) {
     const { propertyName, subPropertyName, propertyValues } = testCase;
     for (const propertyValue of propertyValues) {
+      /** @type {Object<string, any>} */
       const goodObject = {
         "lineNumber": 1
       };
@@ -1379,6 +1389,7 @@ test("customRulesOnErrorValid", (t) => {
             "tags": [ "tag" ],
             "parser": "none",
             "function": function onErrorValid(params, onError) {
+              // @ts-ignore
               onError(goodObject);
             }
           }
@@ -1973,13 +1984,62 @@ test("customRulesAsyncThrowsInSyncContext", (t) => {
   );
 });
 
+test("customRulesParamsConfigExcludesSeverity", (t) => {
+  t.plan(4);
+  /** @type {import("markdownlint").Rule} */
+  const ruleBase = {
+    "names": [ "tbd" ],
+    "description": "description",
+    "tags": [ "tag" ],
+    "parser": "none",
+    "asynchronous": true,
+    "function": ({ config }) => {
+      t.is(typeof config, "object");
+      t.is(typeof config.severity, "undefined");
+    }
+  };
+  /** @type {import("markdownlint").Options} */
+  const options = {
+    "config": {
+      "name1": {
+        "severity": "error"
+      },
+      "name2": {
+        "key": "value",
+        "severity": "error"
+      }
+    },
+    "customRules": [
+      {
+        ...ruleBase,
+        "names": [ "name1" ]
+      },
+      {
+        ...ruleBase,
+        "names": [ "name2" ]
+      }
+    ],
+    "strings": {
+      "string": "Unused"
+    }
+  };
+  return lintPromise(options);
+});
+
 test("customRulesParamsAreFrozen", (t) => {
+  /**
+   * Asserts that rule parameters are frozen.
+   *
+   * @param {import("markdownlint").RuleParams} params Rule parameters.
+   * @returns {void}
+   */
   const assertParamsFrozen = (params) => {
     const pending = [ params ];
     let current = null;
     while ((current = pending.shift())) {
       t.true(Object.isFrozen(current) || (current === params));
       for (const name of Object.getOwnPropertyNames(current)) {
+        // @ts-ignore
         const value = current[name];
         if (
           value &&
diff --git a/test/markdownlint-test.mjs b/test/markdownlint-test.mjs
index a49ce0d2..749a647e 100644
--- a/test/markdownlint-test.mjs
+++ b/test/markdownlint-test.mjs
@@ -346,17 +346,104 @@ test("enableRulesString", getConfigTestImplementation(
   configTestExpected3511
 ));
 
-test("enableRulesEmptyObject", getConfigTestImplementation(
+test("enableRulesObjectEmpty", getConfigTestImplementation(
   {
     "MD041": {},
     "default": false,
-    // @ts-ignore
     "no-multiple-space-atx": {},
     "extra": {}
   },
   configTestExpected3511
 ));
 
+test("enableRulesObjectTruthy", getConfigTestImplementation(
+  {
+    "MD041": {
+      // @ts-ignore
+      "severity": 1
+    },
+    "default": false,
+    "no-multiple-space-atx": {
+      // @ts-ignore
+      "severity": 1
+    },
+    "extra": {
+      "severity": 1
+    }
+  },
+  configTestExpected3511
+));
+
+test("enableRulesObjectFalsy", getConfigTestImplementation(
+  {
+    "MD041": {
+      // @ts-ignore
+      "severity": 0
+    },
+    "default": false,
+    "no-multiple-space-atx": {
+      // @ts-ignore
+      "severity": 0
+    },
+    "extra": {
+      "severity": 0
+    }
+  },
+  configTestExpected3511
+));
+
+test("enableRulesObjectError", getConfigTestImplementation(
+  {
+    "MD041": {
+      "severity": "error"
+    },
+    "default": false,
+    "no-multiple-space-atx": {
+      "severity": "error"
+    },
+    "extra": {
+      "severity": "error"
+    }
+  },
+  configTestExpected3511
+));
+
+test("enableRulesObjectWarning", getConfigTestImplementation(
+  {
+    "MD041": {
+      // @ts-ignore
+      "severity": "warning"
+    },
+    "default": false,
+    "no-multiple-space-atx": {
+      // @ts-ignore
+      "severity": "warning"
+    },
+    "extra": {
+      "severity": "warning"
+    }
+  },
+  configTestExpected3511
+));
+
+test("enableRulesObjectOff", getConfigTestImplementation(
+  {
+    "MD041": {
+      // @ts-ignore
+      "severity": "off"
+    },
+    "default": false,
+    "no-multiple-space-atx": {
+      // @ts-ignore
+      "severity": "off"
+    },
+    "extra": {
+      "severity": "off"
+    }
+  },
+  configTestExpected3511
+));
+
 test("disableTag", getConfigTestImplementation(
   {
     "default": true,
@@ -921,7 +1008,7 @@ test("readme", async(t) => {
 });
 
 test("validateJsonUsingConfigSchemaStrict", async(t) => {
-  t.plan(211);
+  t.plan(212);
   // @ts-ignore
   const ajv = new Ajv(ajvOptions);
   const validateSchemaStrict = ajv.compile(configSchemaStrict);
diff --git a/test/snapshots/markdownlint-test-scenarios.mjs.md b/test/snapshots/markdownlint-test-scenarios.mjs.md
index a6c15f54..23a03743 100644
--- a/test/snapshots/markdownlint-test-scenarios.mjs.md
+++ b/test/snapshots/markdownlint-test-scenarios.mjs.md
@@ -11203,6 +11203,320 @@ Generated by [AVA](https://avajs.dev).
       `,
     }
 
+## configure-file-with-severity.md
+
+> Snapshot 1
+
+    {
+      errors: [
+        {
+          errorContext: null,
+          errorDetail: 'Expected: dash; Actual: plus',
+          errorRange: [
+            1,
+            1,
+          ],
+          fixInfo: {
+            deleteCount: 1,
+            editColumn: 1,
+            insertText: '-',
+          },
+          lineNumber: 9,
+          ruleDescription: 'Unordered list style',
+          ruleInformation: 'https://github.com/DavidAnson/markdownlint/blob/v0.0.0/doc/md004.md',
+          ruleNames: [
+            'MD004',
+            'ul-style',
+          ],
+          severity: 'error',
+        },
+        {
+          errorContext: null,
+          errorDetail: 'Expected: dash; Actual: plus',
+          errorRange: [
+            1,
+            1,
+          ],
+          fixInfo: {
+            deleteCount: 1,
+            editColumn: 1,
+            insertText: '-',
+          },
+          lineNumber: 37,
+          ruleDescription: 'Unordered list style',
+          ruleInformation: 'https://github.com/DavidAnson/markdownlint/blob/v0.0.0/doc/md004.md',
+          ruleNames: [
+            'MD004',
+            'ul-style',
+          ],
+          severity: 'error',
+        },
+        {
+          errorContext: null,
+          errorDetail: '(text)[.]',
+          errorRange: [
+            6,
+            9,
+          ],
+          fixInfo: {
+            deleteCount: 9,
+            editColumn: 6,
+            insertText: '[text](.)',
+          },
+          lineNumber: 11,
+          ruleDescription: 'Reversed link syntax',
+          ruleInformation: 'https://github.com/DavidAnson/markdownlint/blob/v0.0.0/doc/md011.md',
+          ruleNames: [
+            'MD011',
+            'no-reversed-links',
+          ],
+          severity: 'error',
+        },
+        {
+          errorContext: null,
+          errorDetail: '(text)[.]',
+          errorRange: [
+            6,
+            9,
+          ],
+          fixInfo: {
+            deleteCount: 9,
+            editColumn: 6,
+            insertText: '[text](.)',
+          },
+          lineNumber: 39,
+          ruleDescription: 'Reversed link syntax',
+          ruleInformation: 'https://github.com/DavidAnson/markdownlint/blob/v0.0.0/doc/md011.md',
+          ruleNames: [
+            'MD011',
+            'no-reversed-links',
+          ],
+          severity: 'error',
+        },
+        {
+          errorContext: null,
+          errorDetail: 'Expected: 1; Actual: 2; Style: 1/1/1',
+          errorRange: [
+            1,
+            3,
+          ],
+          fixInfo: {
+            deleteCount: 1,
+            editColumn: 1,
+            insertText: '1',
+          },
+          lineNumber: 13,
+          ruleDescription: 'Ordered list item prefix',
+          ruleInformation: 'https://github.com/DavidAnson/markdownlint/blob/v0.0.0/doc/md029.md',
+          ruleNames: [
+            'MD029',
+            'ol-prefix',
+          ],
+          severity: 'error',
+        },
+        {
+          errorContext: null,
+          errorDetail: 'Expected: 1; Actual: 2; Style: 1/1/1',
+          errorRange: [
+            1,
+            3,
+          ],
+          fixInfo: {
+            deleteCount: 1,
+            editColumn: 1,
+            insertText: '1',
+          },
+          lineNumber: 41,
+          ruleDescription: 'Ordered list item prefix',
+          ruleInformation: 'https://github.com/DavidAnson/markdownlint/blob/v0.0.0/doc/md029.md',
+          ruleNames: [
+            'MD029',
+            'ol-prefix',
+          ],
+          severity: 'error',
+        },
+        {
+          errorContext: '* t',
+          errorDetail: null,
+          errorRange: [
+            7,
+            1,
+          ],
+          fixInfo: {
+            deleteCount: 1,
+            editColumn: 7,
+          },
+          lineNumber: 3,
+          ruleDescription: 'Spaces inside emphasis markers',
+          ruleInformation: 'https://github.com/DavidAnson/markdownlint/blob/v0.0.0/doc/md037.md',
+          ruleNames: [
+            'MD037',
+            'no-space-in-emphasis',
+          ],
+          severity: 'error',
+        },
+        {
+          errorContext: '* t',
+          errorDetail: null,
+          errorRange: [
+            7,
+            1,
+          ],
+          fixInfo: {
+            deleteCount: 1,
+            editColumn: 7,
+          },
+          lineNumber: 31,
+          ruleDescription: 'Spaces inside emphasis markers',
+          ruleInformation: 'https://github.com/DavidAnson/markdownlint/blob/v0.0.0/doc/md037.md',
+          ruleNames: [
+            'MD037',
+            'no-space-in-emphasis',
+          ],
+          severity: 'error',
+        },
+        {
+          errorContext: '` text`',
+          errorDetail: null,
+          errorRange: [
+            7,
+            1,
+          ],
+          fixInfo: {
+            deleteCount: 1,
+            editColumn: 7,
+          },
+          lineNumber: 5,
+          ruleDescription: 'Spaces inside code span elements',
+          ruleInformation: 'https://github.com/DavidAnson/markdownlint/blob/v0.0.0/doc/md038.md',
+          ruleNames: [
+            'MD038',
+            'no-space-in-code',
+          ],
+          severity: 'error',
+        },
+        {
+          errorContext: '` text`',
+          errorDetail: null,
+          errorRange: [
+            7,
+            1,
+          ],
+          fixInfo: {
+            deleteCount: 1,
+            editColumn: 7,
+          },
+          lineNumber: 33,
+          ruleDescription: 'Spaces inside code span elements',
+          ruleInformation: 'https://github.com/DavidAnson/markdownlint/blob/v0.0.0/doc/md038.md',
+          ruleNames: [
+            'MD038',
+            'no-space-in-code',
+          ],
+          severity: 'error',
+        },
+        {
+          errorContext: '[ text]',
+          errorDetail: null,
+          errorRange: [
+            7,
+            1,
+          ],
+          fixInfo: {
+            deleteCount: 1,
+            editColumn: 7,
+          },
+          lineNumber: 7,
+          ruleDescription: 'Spaces inside link text',
+          ruleInformation: 'https://github.com/DavidAnson/markdownlint/blob/v0.0.0/doc/md039.md',
+          ruleNames: [
+            'MD039',
+            'no-space-in-links',
+          ],
+          severity: 'error',
+        },
+        {
+          errorContext: '[ text]',
+          errorDetail: null,
+          errorRange: [
+            7,
+            1,
+          ],
+          fixInfo: {
+            deleteCount: 1,
+            editColumn: 7,
+          },
+          lineNumber: 35,
+          ruleDescription: 'Spaces inside link text',
+          ruleInformation: 'https://github.com/DavidAnson/markdownlint/blob/v0.0.0/doc/md039.md',
+          ruleNames: [
+            'MD039',
+            'no-space-in-links',
+          ],
+          severity: 'error',
+        },
+      ],
+      fixed: `# Configure File With Severity␊
+      ␊
+      Text *text* {MD037}␊
+      ␊
+      Text \`text\` {MD038}␊
+      ␊
+      Text [text](.) {MD039}␊
+      ␊
+      - List item {MD004}␊
+      ␊
+      Text [text](.) {MD011}␊
+      ␊
+      1. List item {MD029}␊
+      ␊
+      <!-- markdownlint-disable -->␊
+      ␊
+      Text * text*␊
+      ␊
+      Text \` text\`␊
+      ␊
+      Text [ text](.)␊
+      ␊
+      + List item␊
+      ␊
+      Text (text)[.]␊
+      ␊
+      2. List item␊
+      ␊
+      <!-- markdownlint-restore -->␊
+      ␊
+      Text *text* {MD037}␊
+      ␊
+      Text \`text\` {MD038}␊
+      ␊
+      Text [text](.) {MD039}␊
+      ␊
+      - List item {MD004}␊
+      ␊
+      Text [text](.) {MD011}␊
+      ␊
+      1. List item {MD029}␊
+      ␊
+      <!-- markdownlint-configure-file {␊
+        "default": false,␊
+        "MD037": "error",␊
+        "MD038": "error",␊
+        "MD039": "error",␊
+        "MD004": {␊
+          "severity": "error",␊
+          "style": "dash"␊
+        },␊
+        "MD011": {␊
+          "severity": "error"␊
+        },␊
+        "MD029": {␊
+          "severity": "error"␊
+        }␊
+      } -->␊
+      `,
+    }
+
 ## consecutive_blank_lines.md
 
 > Snapshot 1
diff --git a/test/snapshots/markdownlint-test-scenarios.mjs.snap b/test/snapshots/markdownlint-test-scenarios.mjs.snap
index 24d9ca2f..a3689d1a 100644
Binary files a/test/snapshots/markdownlint-test-scenarios.mjs.snap and b/test/snapshots/markdownlint-test-scenarios.mjs.snap differ