diff --git a/src/misc/schema.ts b/src/misc/schema.ts
index 8854ab5303..c4ca80249d 100644
--- a/src/misc/schema.ts
+++ b/src/misc/schema.ts
@@ -1,5 +1,50 @@
-import { packedNoteSchema } from "@/models/repositories/note";
-import { packedNotificationSchema } from "@/models/repositories/notification";
+import { packedUserSchema } from '@/models/repositories/user';
+import { packedNoteSchema } from '@/models/repositories/note';
+import { packedUserListSchema } from '@/models/repositories/user-list';
+import { packedAppSchema } from '@/models/repositories/app';
+import { packedMessagingMessageSchema } from '@/models/repositories/messaging-message';
+import { packedNotificationSchema } from '@/models/repositories/notification';
+import { packedDriveFileSchema } from '@/models/repositories/drive-file';
+import { packedDriveFolderSchema } from '@/models/repositories/drive-folder';
+import { packedFollowingSchema } from '@/models/repositories/following';
+import { packedMutingSchema } from '@/models/repositories/muting';
+import { packedBlockingSchema } from '@/models/repositories/blocking';
+import { packedNoteReactionSchema } from '@/models/repositories/note-reaction';
+import { packedHashtagSchema } from '@/models/repositories/hashtag';
+import { packedPageSchema } from '@/models/repositories/page';
+import { packedUserGroupSchema } from '@/models/repositories/user-group';
+import { packedNoteFavoriteSchema } from '@/models/repositories/note-favorite';
+import { packedChannelSchema } from '@/models/repositories/channel';
+import { packedAntennaSchema } from '@/models/repositories/antenna';
+import { packedClipSchema } from '@/models/repositories/clip';
+import { packedFederationInstanceSchema } from '@/models/repositories/federation-instance';
+import { packedQueueCountSchema } from '@/models/repositories/queue';
+import { packedGalleryPostSchema } from '@/models/repositories/gallery-post';
+
+export const refs = {
+	User: packedUserSchema,
+	UserList: packedUserListSchema,
+	UserGroup: packedUserGroupSchema,
+	App: packedAppSchema,
+	MessagingMessage: packedMessagingMessageSchema,
+	Note: packedNoteSchema,
+	NoteReaction: packedNoteReactionSchema,
+	NoteFavorite: packedNoteFavoriteSchema,
+	Notification: packedNotificationSchema,
+	DriveFile: packedDriveFileSchema,
+	DriveFolder: packedDriveFolderSchema,
+	Following: packedFollowingSchema,
+	Muting: packedMutingSchema,
+	Blocking: packedBlockingSchema,
+	Hashtag: packedHashtagSchema,
+	Page: packedPageSchema,
+	Channel: packedChannelSchema,
+	QueueCount: packedQueueCountSchema,
+	Antenna: packedAntennaSchema,
+	Clip: packedClipSchema,
+	FederationInstance: packedFederationInstanceSchema,
+	GalleryPost: packedGalleryPostSchema,
+};
 
 export type Schema = {
 	type: 'boolean' | 'number' | 'string' | 'array' | 'object' | 'any';
@@ -10,8 +55,9 @@ export type Schema = {
 	description?: string;
 	example?: any;
 	format?: string;
-	ref?: string;
+	ref?: keyof typeof refs;
 	enum?: string[];
+	default?: boolean | null;
 };
 
 type NonUndefinedPropertyNames<T extends Obj> = {
@@ -46,19 +92,15 @@ type NullOrUndefined<p extends Schema, T> =
 			? (T | undefined)
 			: T;
 
-export const refs = {
-	Note: packedNoteSchema,
-	Notification: packedNotificationSchema,
-};
-
 export type SchemaType<p extends Schema> =
 	p['type'] extends 'number' ? NullOrUndefined<p, number> :
 	p['type'] extends 'string' ? NullOrUndefined<p, string> :
 	p['type'] extends 'boolean' ? NullOrUndefined<p, boolean> :
 	p['type'] extends 'array' ? NullOrUndefined<p, MyType<NonNullable<p['items']>>[]> :
-	p['type'] extends 'object' ?
-	(	p['ref'] extends keyof typeof refs ?
-		NullOrUndefined<p, SchemaType<typeof refs[p['ref']]>> :
-		NullOrUndefined<p, ObjType<NonNullable<p['properties']>>> ) :
+	p['type'] extends 'object' ? (
+		p['ref'] extends keyof typeof refs
+			? NullOrUndefined<p, SchemaType<typeof refs[p['ref']]>>
+			: NullOrUndefined<p, ObjType<NonNullable<p['properties']>>>
+	) :
 	p['type'] extends 'any' ? NullOrUndefined<p, any> :
 	any;
diff --git a/src/models/repositories/clip.ts b/src/models/repositories/clip.ts
index 49dc3a332e..e3d718bef4 100644
--- a/src/models/repositories/clip.ts
+++ b/src/models/repositories/clip.ts
@@ -53,7 +53,7 @@ export const packedClipSchema = {
 		},
 		user: {
 			type: 'object' as const,
-			ref: 'User',
+			ref: 'User' as const,
 			optional: false as const, nullable: false as const,
 		},
 		name: {
diff --git a/src/models/repositories/drive-file.ts b/src/models/repositories/drive-file.ts
index 42a60ff03c..63bd020cbe 100644
--- a/src/models/repositories/drive-file.ts
+++ b/src/models/repositories/drive-file.ts
@@ -234,7 +234,7 @@ export const packedDriveFileSchema = {
 		folder: {
 			type: 'object' as const,
 			optional: true as const, nullable: true as const,
-			ref: 'DriveFolder'
+			ref: 'DriveFolder' as const,
 		},
 		userId: {
 			type: 'string' as const,
@@ -245,7 +245,7 @@ export const packedDriveFileSchema = {
 		user: {
 			type: 'object' as const,
 			optional: true as const, nullable: true as const,
-			ref: 'User'
+			ref: 'User' as const,
 		}
 	},
 };
diff --git a/src/models/repositories/drive-folder.ts b/src/models/repositories/drive-folder.ts
index 4228284f82..bc73018f29 100644
--- a/src/models/repositories/drive-folder.ts
+++ b/src/models/repositories/drive-folder.ts
@@ -87,7 +87,7 @@ export const packedDriveFolderSchema = {
 		parent: {
 			type: 'object' as const,
 			optional: true as const, nullable: true as const,
-			ref: 'DriveFolder'
+			ref: 'DriveFolder' as const,
 		},
 	},
 };
diff --git a/src/models/repositories/following.ts b/src/models/repositories/following.ts
index 3bb120bc4b..24ddd0d676 100644
--- a/src/models/repositories/following.ts
+++ b/src/models/repositories/following.ts
@@ -110,7 +110,7 @@ export const packedFollowingSchema = {
 		followee: {
 			type: 'object' as const,
 			optional: true as const, nullable: false as const,
-			ref: 'User',
+			ref: 'User' as const,
 		},
 		followerId: {
 			type: 'string' as const,
@@ -120,7 +120,7 @@ export const packedFollowingSchema = {
 		follower: {
 			type: 'object' as const,
 			optional: true as const, nullable: false as const,
-			ref: 'User',
+			ref: 'User' as const,
 		},
 	}
 };
diff --git a/src/models/repositories/gallery-post.ts b/src/models/repositories/gallery-post.ts
index 03edb35213..afa22e9edf 100644
--- a/src/models/repositories/gallery-post.ts
+++ b/src/models/repositories/gallery-post.ts
@@ -1,6 +1,6 @@
 import { EntityRepository, Repository } from 'typeorm';
 import { GalleryPost } from '@/models/entities/gallery-post';
-import { SchemaType } from '../../misc/schema';
+import { SchemaType } from '@/misc/schema';
 import { Users, DriveFiles, GalleryLikes } from '../index';
 import { awaitAll } from '@/prelude/await-all';
 import { User } from '@/models/entities/user';
@@ -76,7 +76,7 @@ export const packedGalleryPostSchema = {
 		},
 		user: {
 			type: 'object' as const,
-			ref: 'User',
+			ref: 'User' as const,
 			optional: false as const, nullable: false as const,
 		},
 		fileIds: {
@@ -94,7 +94,7 @@ export const packedGalleryPostSchema = {
 			items: {
 				type: 'object' as const,
 				optional: false as const, nullable: false as const,
-				ref: 'DriveFile'
+				ref: 'DriveFile' as const,
 			}
 		},
 		tags: {
diff --git a/src/models/repositories/messaging-message.ts b/src/models/repositories/messaging-message.ts
index 1a4a8eecc4..f97905af2f 100644
--- a/src/models/repositories/messaging-message.ts
+++ b/src/models/repositories/messaging-message.ts
@@ -67,7 +67,7 @@ export const packedMessagingMessageSchema = {
 		},
 		user: {
 			type: 'object' as const,
-			ref: 'User',
+			ref: 'User' as const,
 			optional: true as const, nullable: false as const,
 		},
 		text: {
@@ -82,7 +82,7 @@ export const packedMessagingMessageSchema = {
 		file: {
 			type: 'object' as const,
 			optional: true as const, nullable: true as const,
-			ref: 'DriveFile',
+			ref: 'DriveFile' as const,
 		},
 		recipientId: {
 			type: 'string' as const,
@@ -92,7 +92,7 @@ export const packedMessagingMessageSchema = {
 		recipient: {
 			type: 'object' as const,
 			optional: true as const, nullable: true as const,
-			ref: 'User'
+			ref: 'User' as const,
 		},
 		groupId: {
 			type: 'string' as const,
@@ -102,7 +102,7 @@ export const packedMessagingMessageSchema = {
 		group: {
 			type: 'object' as const,
 			optional: true as const, nullable: true as const,
-			ref: 'UserGroup'
+			ref: 'UserGroup' as const,
 		},
 		isRead: {
 			type: 'boolean' as const,
diff --git a/src/models/repositories/muting.ts b/src/models/repositories/muting.ts
index e46f4ae448..d957b1792d 100644
--- a/src/models/repositories/muting.ts
+++ b/src/models/repositories/muting.ts
@@ -56,7 +56,7 @@ export const packedMutingSchema = {
 		mutee: {
 			type: 'object' as const,
 			optional: false as const, nullable: false as const,
-			ref: 'User',
+			ref: 'User' as const,
 		},
 	}
 };
diff --git a/src/models/repositories/note-favorite.ts b/src/models/repositories/note-favorite.ts
index 3248c32ded..47586a9116 100644
--- a/src/models/repositories/note-favorite.ts
+++ b/src/models/repositories/note-favorite.ts
@@ -45,7 +45,7 @@ export const packedNoteFavoriteSchema = {
 		note: {
 			type: 'object' as const,
 			optional: false as const, nullable: false as const,
-			ref: 'Note',
+			ref: 'Note' as const,
 		},
 		noteId: {
 			type: 'string' as const,
diff --git a/src/models/repositories/note-reaction.ts b/src/models/repositories/note-reaction.ts
index c349edf182..e73a832109 100644
--- a/src/models/repositories/note-reaction.ts
+++ b/src/models/repositories/note-reaction.ts
@@ -42,7 +42,7 @@ export const packedNoteReactionSchema = {
 		user: {
 			type: 'object' as const,
 			optional: false as const, nullable: false as const,
-			ref: 'User',
+			ref: 'User' as const,
 		},
 		type: {
 			type: 'string' as const,
diff --git a/src/models/repositories/note.ts b/src/models/repositories/note.ts
index 9e0f5e55f0..ac4df222dc 100644
--- a/src/models/repositories/note.ts
+++ b/src/models/repositories/note.ts
@@ -3,7 +3,7 @@ import * as mfm from 'mfm-js';
 import { Note } from '@/models/entities/note';
 import { User } from '@/models/entities/user';
 import { Users, PollVotes, DriveFiles, NoteReactions, Followings, Polls, Channels } from '../index';
-import { SchemaType } from '@/misc/schema';
+import { Schema, SchemaType } from '@/misc/schema';
 import { nyaize } from '@/misc/nyaize';
 import { awaitAll } from '@/prelude/await-all';
 import { convertLegacyReaction, convertLegacyReactions, decodeReaction } from '@/misc/reaction-lib';
@@ -353,7 +353,7 @@ export const packedNoteSchema = {
 		},
 		user: {
 			type: 'object' as const,
-			ref: 'User',
+			ref: 'User' as const,
 			optional: false as const, nullable: false as const,
 		},
 		replyId: {
@@ -371,12 +371,12 @@ export const packedNoteSchema = {
 		reply: {
 			type: 'object' as const,
 			optional: true as const, nullable: true as const,
-			ref: 'Note'
+			ref: 'Note' as const,
 		},
 		renote: {
 			type: 'object' as const,
 			optional: true as const, nullable: true as const,
-			ref: 'Note'
+			ref: 'Note' as const,
 		},
 		viaMobile: {
 			type: 'boolean' as const,
@@ -423,7 +423,7 @@ export const packedNoteSchema = {
 			items: {
 				type: 'object' as const,
 				optional: false as const, nullable: false as const,
-				ref: 'DriveFile'
+				ref: 'DriveFile' as const,
 			}
 		},
 		tags: {
@@ -447,7 +447,7 @@ export const packedNoteSchema = {
 		channel: {
 			type: 'object' as const,
 			optional: true as const, nullable: true as const,
-			ref: 'Channel'
+			ref: 'Channel' as const,
 		},
 		localOnly: {
 			type: 'boolean' as const,
diff --git a/src/models/repositories/notification.ts b/src/models/repositories/notification.ts
index 983fdaf6e8..b7f9e3643c 100644
--- a/src/models/repositories/notification.ts
+++ b/src/models/repositories/notification.ts
@@ -136,7 +136,7 @@ export const packedNotificationSchema = {
 		},
 		user: {
 			type: 'object' as const,
-			ref: 'User',
+			ref: 'User' as const,
 			optional: true as const, nullable: true as const,
 		},
 		userId: {
@@ -159,7 +159,6 @@ export const packedNotificationSchema = {
 		},
 		invitation: {
 			type: 'object' as const,
-			ref: 'Note',
 			optional: true as const, nullable: true as const,
 		},
 		body: {
diff --git a/src/models/repositories/page.ts b/src/models/repositories/page.ts
index 757aaa5a3f..1a61e2c99c 100644
--- a/src/models/repositories/page.ts
+++ b/src/models/repositories/page.ts
@@ -137,7 +137,7 @@ export const packedPageSchema = {
 		},
 		user: {
 			type: 'object' as const,
-			ref: 'User',
+			ref: 'User' as const,
 			optional: false as const, nullable: false as const,
 		},
 	}
diff --git a/src/models/repositories/user.ts b/src/models/repositories/user.ts
index d4bb995ce2..4a6534b557 100644
--- a/src/models/repositories/user.ts
+++ b/src/models/repositories/user.ts
@@ -520,7 +520,7 @@ export const packedUserSchema = {
 			items: {
 				type: 'object' as const,
 				nullable: false as const, optional: false as const,
-				ref: 'Note'
+				ref: 'Note' as const,
 			}
 		},
 		pinnedPageId: {
@@ -530,7 +530,7 @@ export const packedUserSchema = {
 		pinnedPage: {
 			type: 'object' as const,
 			nullable: true as const, optional: false as const,
-			ref: 'Page'
+			ref: 'Page' as const,
 		},
 		twoFactorEnabled: {
 			type: 'boolean' as const,
diff --git a/src/server/api/openapi/schemas.ts b/src/server/api/openapi/schemas.ts
index 5402dc6f48..12fc207c47 100644
--- a/src/server/api/openapi/schemas.ts
+++ b/src/server/api/openapi/schemas.ts
@@ -1,26 +1,4 @@
-import { packedUserSchema } from '@/models/repositories/user';
-import { Schema } from '@/misc/schema';
-import { packedNoteSchema } from '@/models/repositories/note';
-import { packedUserListSchema } from '@/models/repositories/user-list';
-import { packedAppSchema } from '@/models/repositories/app';
-import { packedMessagingMessageSchema } from '@/models/repositories/messaging-message';
-import { packedNotificationSchema } from '@/models/repositories/notification';
-import { packedDriveFileSchema } from '@/models/repositories/drive-file';
-import { packedDriveFolderSchema } from '@/models/repositories/drive-folder';
-import { packedFollowingSchema } from '@/models/repositories/following';
-import { packedMutingSchema } from '@/models/repositories/muting';
-import { packedBlockingSchema } from '@/models/repositories/blocking';
-import { packedNoteReactionSchema } from '@/models/repositories/note-reaction';
-import { packedHashtagSchema } from '@/models/repositories/hashtag';
-import { packedPageSchema } from '@/models/repositories/page';
-import { packedUserGroupSchema } from '@/models/repositories/user-group';
-import { packedNoteFavoriteSchema } from '@/models/repositories/note-favorite';
-import { packedChannelSchema } from '@/models/repositories/channel';
-import { packedAntennaSchema } from '@/models/repositories/antenna';
-import { packedClipSchema } from '@/models/repositories/clip';
-import { packedFederationInstanceSchema } from '@/models/repositories/federation-instance';
-import { packedQueueCountSchema } from '@/models/repositories/queue';
-import { packedGalleryPostSchema } from '@/models/repositories/gallery-post';
+import { refs, Schema } from '@/misc/schema';
 
 export function convertSchemaToOpenApiSchema(schema: Schema) {
 	const res: any = schema;
@@ -72,26 +50,7 @@ export const schemas = {
 		required: ['error']
 	},
 
-	User: convertSchemaToOpenApiSchema(packedUserSchema),
-	UserList: convertSchemaToOpenApiSchema(packedUserListSchema),
-	UserGroup: convertSchemaToOpenApiSchema(packedUserGroupSchema),
-	App: convertSchemaToOpenApiSchema(packedAppSchema),
-	MessagingMessage: convertSchemaToOpenApiSchema(packedMessagingMessageSchema),
-	Note: convertSchemaToOpenApiSchema(packedNoteSchema),
-	NoteReaction: convertSchemaToOpenApiSchema(packedNoteReactionSchema),
-	NoteFavorite: convertSchemaToOpenApiSchema(packedNoteFavoriteSchema),
-	Notification: convertSchemaToOpenApiSchema(packedNotificationSchema),
-	DriveFile: convertSchemaToOpenApiSchema(packedDriveFileSchema),
-	DriveFolder: convertSchemaToOpenApiSchema(packedDriveFolderSchema),
-	Following: convertSchemaToOpenApiSchema(packedFollowingSchema),
-	Muting: convertSchemaToOpenApiSchema(packedMutingSchema),
-	Blocking: convertSchemaToOpenApiSchema(packedBlockingSchema),
-	Hashtag: convertSchemaToOpenApiSchema(packedHashtagSchema),
-	Page: convertSchemaToOpenApiSchema(packedPageSchema),
-	Channel: convertSchemaToOpenApiSchema(packedChannelSchema),
-	QueueCount: convertSchemaToOpenApiSchema(packedQueueCountSchema),
-	Antenna: convertSchemaToOpenApiSchema(packedAntennaSchema),
-	Clip: convertSchemaToOpenApiSchema(packedClipSchema),
-	FederationInstance: convertSchemaToOpenApiSchema(packedFederationInstanceSchema),
-	GalleryPost: convertSchemaToOpenApiSchema(packedGalleryPostSchema),
+	...Object.fromEntries(
+		Object.entries(refs).map(([key, schema]) => [key, convertSchemaToOpenApiSchema(schema)])
+	),
 };