diff --git a/packages/misskey-js/src/schemas/app.ts b/packages/misskey-js/src/schemas/app.ts
index c80dc81c3..be6c0296d 100644
--- a/packages/misskey-js/src/schemas/app.ts
+++ b/packages/misskey-js/src/schemas/app.ts
@@ -1,33 +1,34 @@
+import type { JSONSchema7Definition } from 'schema-type';
+
 export const packedAppSchema = {
+	$id: 'https://misskey-hub.net/api/schemas/App',
+
 	type: 'object',
 	properties: {
-		id: {
-			type: 'string',
-			optional: false, nullable: false,
-		},
+		id: { $ref: 'https://misskey-hub.net/api/schemas/Id' },
 		name: {
 			type: 'string',
-			optional: false, nullable: false,
 		},
 		callbackUrl: {
-			type: 'string',
-			optional: false, nullable: true,
+			type: ['string', 'null'],
 		},
 		permission: {
 			type: 'array',
-			optional: false, nullable: false,
 			items: {
 				type: 'string',
-				optional: false, nullable: false,
 			},
 		},
 		secret: {
 			type: 'string',
-			optional: true, nullable: false,
 		},
 		isAuthorized: {
 			type: 'boolean',
-			optional: true, nullable: false,
 		},
 	},
-} as const;
+	required: [
+		'id',
+		'name',
+		'callbackUrl',
+		'permission',
+	],
+} as const satisfies JSONSchema7Definition;
diff --git a/packages/misskey-js/src/schemas/blocking.ts b/packages/misskey-js/src/schemas/blocking.ts
index 553232242..8c21d1e6f 100644
--- a/packages/misskey-js/src/schemas/blocking.ts
+++ b/packages/misskey-js/src/schemas/blocking.ts
@@ -1,26 +1,22 @@
+import type { JSONSchema7Definition } from 'schema-type';
+
 export const packedBlockingSchema = {
+	$id: 'https://misskey-hub.net/api/schemas/Blocking',
+
 	type: 'object',
 	properties: {
-		id: {
-			type: 'string',
-			optional: false, nullable: false,
-			format: 'id',
-			example: 'xxxxxxxxxx',
-		},
+		id: { $ref: 'https://misskey-hub.net/api/schemas/Id' },
 		createdAt: {
 			type: 'string',
-			optional: false, nullable: false,
 			format: 'date-time',
 		},
-		blockeeId: {
-			type: 'string',
-			optional: false, nullable: false,
-			format: 'id',
-		},
-		blockee: {
-			type: 'object',
-			optional: false, nullable: false,
-			ref: 'UserDetailed',
-		},
+		blockeeId: { $ref: 'https://misskey-hub.net/api/schemas/Id' },
+		blockee: { $ref: 'https://misskey-hub.net/api/schemas/UserDetailed' },
 	},
-} as const;
+	required: [
+		'id',
+		'createdAt',
+		'blockeeId',
+		'blockee',
+	],
+} as const satisfies JSONSchema7Definition;
diff --git a/packages/misskey-js/src/schemas/channel.ts b/packages/misskey-js/src/schemas/channel.ts
index fd61a70c0..1d13293be 100644
--- a/packages/misskey-js/src/schemas/channel.ts
+++ b/packages/misskey-js/src/schemas/channel.ts
@@ -1,71 +1,81 @@
+import type { JSONSchema7Definition } from 'schema-type';
+
 export const packedChannelSchema = {
+	$id: 'https://misskey-hub.net/api/schemas/Channel',
+
 	type: 'object',
 	properties: {
-		id: {
-			type: 'string',
-			optional: false, nullable: false,
-			format: 'id',
-			example: 'xxxxxxxxxx',
-		},
+		id: { $ref: 'https://misskey-hub.net/api/schemas/Id' },
 		createdAt: {
 			type: 'string',
-			optional: false, nullable: false,
 			format: 'date-time',
 		},
 		lastNotedAt: {
-			type: 'string',
-			optional: false, nullable: true,
-			format: 'date-time',
+			oneOf: [{
+				type: 'string',
+				format: 'date-time',
+			}, {
+				type: 'null',
+			}],
 		},
 		name: {
 			type: 'string',
-			optional: false, nullable: false,
 		},
 		description: {
-			type: 'string',
-			nullable: true, optional: false,
+			type: ['string', 'null'],
 		},
 		bannerUrl: {
-			type: 'string',
-			format: 'url',
-			nullable: true, optional: false,
+			oneOf: [{
+				type: 'string',
+				format: 'url',
+			}, {
+				type: 'null',
+			}],
 		},
 		isArchived: {
 			type: 'boolean',
-			optional: false, nullable: false,
 		},
 		notesCount: {
 			type: 'number',
-			nullable: false, optional: false,
 		},
 		usersCount: {
 			type: 'number',
-			nullable: false, optional: false,
 		},
 		isFollowing: {
 			type: 'boolean',
-			optional: true, nullable: false,
 		},
 		isFavorited: {
 			type: 'boolean',
-			optional: true, nullable: false,
 		},
 		userId: {
-			type: 'string',
-			nullable: true, optional: false,
-			format: 'id',
+			oneOf: [{
+				$ref: 'https://misskey-hub.net/api/schemas/Id',
+			}, {
+				type: 'null',
+			}],
 		},
 		pinnedNoteIds: {
 			type: 'array',
-			nullable: false, optional: false,
 			items: {
-				type: 'string',
-				format: 'id',
+				$ref: 'https://misskey-hub.net/api/schemas/Id',
 			},
 		},
 		color: {
 			type: 'string',
-			optional: false, nullable: false,
 		},
 	},
-} as const;
+	required: [
+		'id',
+		'createdAt',
+		'lastNotedAt',
+		'name',
+		'description',
+		'bannerUrl',
+		'isArchived',
+		'notesCount',
+		'usersCount',
+		'userId',
+		'pinnedNoteIds',
+		'color',
+	],
+} as const satisfies JSONSchema7Definition;