diff --git a/eslint.config.mjs b/eslint.config.mjs
index c22b7819ba6d..115317235ae0 100644
--- a/eslint.config.mjs
+++ b/eslint.config.mjs
@@ -575,6 +575,7 @@ export default tseslint.config(
       'packages/integration-tests/{tests,tools,typing}/**/*.ts',
       'packages/parser/{src,tests}/**/*.ts',
       'packages/rule-tester/{src,tests,typings}/**/*.ts',
+      'packages/types/{src,tools}/**/*.ts',
       'packages/typescript-eslint/{src,tests}/**/*.ts',
       'packages/utils/src/**/*.ts',
       'packages/visitor-keys/src/**/*.ts',
diff --git a/packages/types/src/lib.ts b/packages/types/src/lib.ts
index 4d50356ed5c8..71c8f4334917 100644
--- a/packages/types/src/lib.ts
+++ b/packages/types/src/lib.ts
@@ -4,29 +4,17 @@
 // npx nx generate-lib repo
 
 type Lib =
+  | 'decorators'
+  | 'decorators.legacy'
+  | 'dom'
+  | 'dom.asynciterable'
+  | 'dom.iterable'
   | 'es5'
   | 'es6'
-  | 'es2015'
   | 'es7'
-  | 'es2016'
-  | 'es2017'
-  | 'es2018'
-  | 'es2019'
-  | 'es2020'
-  | 'es2021'
-  | 'es2022'
-  | 'es2023'
-  | 'esnext'
-  | 'dom'
-  | 'dom.iterable'
-  | 'dom.asynciterable'
-  | 'webworker'
-  | 'webworker.importscripts'
-  | 'webworker.iterable'
-  | 'webworker.asynciterable'
-  | 'scripthost'
-  | 'es2015.core'
+  | 'es2015'
   | 'es2015.collection'
+  | 'es2015.core'
   | 'es2015.generator'
   | 'es2015.iterable'
   | 'es2015.promise'
@@ -34,70 +22,82 @@ type Lib =
   | 'es2015.reflect'
   | 'es2015.symbol'
   | 'es2015.symbol.wellknown'
+  | 'es2016'
   | 'es2016.array.include'
+  | 'es2016.full'
   | 'es2016.intl'
+  | 'es2017'
   | 'es2017.date'
+  | 'es2017.full'
+  | 'es2017.intl'
   | 'es2017.object'
   | 'es2017.sharedmemory'
   | 'es2017.string'
-  | 'es2017.intl'
   | 'es2017.typedarrays'
+  | 'es2018'
   | 'es2018.asyncgenerator'
   | 'es2018.asynciterable'
+  | 'es2018.full'
   | 'es2018.intl'
   | 'es2018.promise'
   | 'es2018.regexp'
+  | 'es2019'
   | 'es2019.array'
+  | 'es2019.full'
+  | 'es2019.intl'
   | 'es2019.object'
   | 'es2019.string'
   | 'es2019.symbol'
-  | 'es2019.intl'
+  | 'es2020'
   | 'es2020.bigint'
   | 'es2020.date'
+  | 'es2020.full'
+  | 'es2020.intl'
+  | 'es2020.number'
   | 'es2020.promise'
   | 'es2020.sharedmemory'
   | 'es2020.string'
   | 'es2020.symbol.wellknown'
-  | 'es2020.intl'
-  | 'es2020.number'
+  | 'es2021'
+  | 'es2021.full'
+  | 'es2021.intl'
   | 'es2021.promise'
   | 'es2021.string'
   | 'es2021.weakref'
-  | 'es2021.intl'
+  | 'es2022'
   | 'es2022.array'
   | 'es2022.error'
+  | 'es2022.full'
   | 'es2022.intl'
   | 'es2022.object'
+  | 'es2022.regexp'
   | 'es2022.sharedmemory'
   | 'es2022.string'
-  | 'es2022.regexp'
+  | 'es2023'
   | 'es2023.array'
   | 'es2023.collection'
+  | 'es2023.full'
   | 'es2023.intl'
+  | 'esnext'
   | 'esnext.array'
-  | 'esnext.collection'
-  | 'esnext.symbol'
   | 'esnext.asynciterable'
-  | 'esnext.intl'
-  | 'esnext.disposable'
   | 'esnext.bigint'
-  | 'esnext.string'
-  | 'esnext.promise'
-  | 'esnext.weakref'
+  | 'esnext.collection'
   | 'esnext.decorators'
+  | 'esnext.disposable'
+  | 'esnext.full'
+  | 'esnext.intl'
   | 'esnext.object'
+  | 'esnext.promise'
   | 'esnext.regexp'
-  | 'decorators'
-  | 'decorators.legacy'
-  | 'es2016.full'
-  | 'es2017.full'
-  | 'es2018.full'
-  | 'es2019.full'
-  | 'es2020.full'
-  | 'es2021.full'
-  | 'es2022.full'
-  | 'es2023.full'
-  | 'esnext.full'
-  | 'lib';
+  | 'esnext.string'
+  | 'esnext.symbol'
+  | 'esnext.weakref'
+  | 'lib'
+  | 'scripthost'
+  | 'webworker'
+  | 'webworker.asynciterable'
+  | 'webworker.importscripts'
+  | 'webworker.iterable';
 
 export { Lib };
diff --git a/packages/types/src/parser-options.ts b/packages/types/src/parser-options.ts
index bb9c74619f6d..ab4631aa7768 100644
--- a/packages/types/src/parser-options.ts
+++ b/packages/types/src/parser-options.ts
@@ -2,10 +2,11 @@ import type { Program } from 'typescript';
 
 import type { Lib } from './lib';
 
-type DebugLevel = ('eslint' | 'typescript-eslint' | 'typescript')[] | boolean;
-type CacheDurationSeconds = number | 'Infinity';
+type DebugLevel = ('eslint' | 'typescript' | 'typescript-eslint')[] | boolean;
+type CacheDurationSeconds = 'Infinity' | number;
 
 type EcmaVersion =
+  | 'latest'
   | 3
   | 5
   | 6
@@ -30,11 +31,10 @@ type EcmaVersion =
   | 2023
   | 2024
   | 2025
-  | 'latest'
   | undefined;
 
 type SourceTypeClassic = 'module' | 'script';
-type SourceType = SourceTypeClassic | 'commonjs';
+type SourceType = 'commonjs' | SourceTypeClassic;
 
 type JSDocParsingMode = 'all' | 'none' | 'type-info';
 
@@ -65,46 +65,46 @@ interface ProjectServiceOptions {
 
 // If you add publicly visible options here, make sure they're also documented in `docs/packages/Parser.mdx`
 interface ParserOptions {
+  [additionalProperties: string]: unknown;
+  cacheLifetime?: {
+    glob?: CacheDurationSeconds;
+  };
+
+  // typescript-estree specific
+  debugLevel?: DebugLevel;
   ecmaFeatures?:
     | {
+        [key: string]: unknown;
         globalReturn?: boolean | undefined;
         jsx?: boolean | undefined;
-        [key: string]: unknown;
       }
     | undefined;
   ecmaVersion?: EcmaVersion;
 
-  // scope-manager specific
-  jsxPragma?: string | null;
-  jsxFragmentName?: string | null;
-  lib?: Lib[];
-
   // use emitDecoratorMetadata without specifying parserOptions.project
   emitDecoratorMetadata?: boolean;
-  // use experimentalDecorators without specifying parserOptions.project
-  experimentalDecorators?: boolean;
-
-  // typescript-estree specific
-  debugLevel?: DebugLevel;
   errorOnTypeScriptSyntacticAndSemanticIssues?: boolean;
+
   errorOnUnknownASTType?: boolean;
+  // use experimentalDecorators without specifying parserOptions.project
+  experimentalDecorators?: boolean;
   extraFileExtensions?: string[];
   filePath?: string;
   jsDocParsingMode?: JSDocParsingMode;
+  jsxFragmentName?: string | null;
+  // scope-manager specific
+  jsxPragma?: string | null;
+  lib?: Lib[];
   programs?: Program[] | null;
-  project?: string[] | string | boolean | null;
+  project?: string[] | boolean | string | null;
   projectFolderIgnoreList?: string[];
-  projectService?: boolean | ProjectServiceOptions;
+  projectService?: ProjectServiceOptions | boolean;
   range?: boolean;
   sourceType?: SourceType | undefined;
   tokens?: boolean;
   tsconfigRootDir?: string;
-  warnOnUnsupportedTypeScriptVersion?: boolean;
-  cacheLifetime?: {
-    glob?: CacheDurationSeconds;
-  };
 
-  [additionalProperties: string]: unknown;
+  warnOnUnsupportedTypeScriptVersion?: boolean;
 }
 
 export {
diff --git a/packages/types/src/ts-estree.ts b/packages/types/src/ts-estree.ts
index e297a0016f52..15d5204940ac 100644
--- a/packages/types/src/ts-estree.ts
+++ b/packages/types/src/ts-estree.ts
@@ -51,7 +51,7 @@ declare module './generated/ast-spec' {
   }
 
   interface ClassBody {
-    parent: TSESTree.ClassExpression | TSESTree.ClassDeclaration;
+    parent: TSESTree.ClassDeclaration | TSESTree.ClassExpression;
   }
 
   interface ExportSpecifier {
@@ -216,8 +216,8 @@ declare module './generated/ast-spec' {
   interface TSTypeParameter {
     parent:
       | TSESTree.TSInferType
-      | TSESTree.TSTypeParameterDeclaration
-      | TSESTree.TSMappedType;
+      | TSESTree.TSMappedType
+      | TSESTree.TSTypeParameterDeclaration;
   }
 }