diff --git a/packages/frontend/src/world/room/object-schema-defs.ts b/packages/frontend/src/world/room/object-schema-defs.ts
new file mode 100644
index 0000000000..6687431935
--- /dev/null
+++ b/packages/frontend/src/world/room/object-schema-defs.ts
@@ -0,0 +1,236 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { a4Case_schema } from './objects/a4Case.schema.js';
+import { aircon_schema } from './objects/aircon.schema.js';
+import { allInOnePc_schema } from './objects/allInOnePc.schema.js';
+import { aquarium_schema } from './objects/aquarium.schema.js';
+import { aromaReedDiffuser_schema } from './objects/aromaReedDiffuser.schema.js';
+import { banknote_schema } from './objects/banknote.schema.js';
+import { beamLamp_schema } from './objects/beamLamp.schema.js';
+import { bed_schema } from './objects/bed.schema.js';
+import { blind_schema } from './objects/blind.schema.js';
+import { book_schema } from './objects/book.schema.js';
+import { books_schema } from './objects/books.schema.js';
+import { boxWallShelf_schema } from './objects/boxWallShelf.schema.js';
+import { cactusS_schema } from './objects/cactusS.schema.js';
+import { cardboardBox_schema } from './objects/cardboardBox.schema.js';
+import { ceilingFanLight_schema } from './objects/ceilingFanLight.schema.js';
+import { chair_schema } from './objects/chair.schema.js';
+import { clippedPicture_schema } from './objects/clippedPicture.schema.js';
+import { coffeeCup_schema } from './objects/coffeeCup.schema.js';
+import { colorBox_schema } from './objects/colorBox.schema.js';
+import { cuboid_schema } from './objects/cuboid.schema.js';
+import { cupNoodle_schema } from './objects/cupNoodle.schema.js';
+import { curtain_schema } from './objects/curtain.schema.js';
+import { custardPudding_schema } from './objects/custardPudding.schema.js';
+import { descriptionPlate_schema } from './objects/descriptionPlate.schema.js';
+import { desk_schema } from './objects/desk.schema.js';
+import { desktopPc_schema } from './objects/desktopPc.schema.js';
+import { djMixer_schema } from './objects/djMixer.schema.js';
+import { djPlayer_schema } from './objects/djPlayer.schema.js';
+import { ductRailSpotLights_schema } from './objects/ductRailSpotLights.schema.js';
+import { ductTape_schema } from './objects/ductTape.schema.js';
+import { electronicDisplayBoard_schema } from './objects/electronicDisplayBoard.schema.js';
+import { emptyBento_schema } from './objects/emptyBento.schema.js';
+import { energyDrink_schema } from './objects/energyDrink.schema.js';
+import { envelope_schema } from './objects/envelope.schema.js';
+import { facialTissue_schema } from './objects/facialTissue.schema.js';
+import { glassCylinderPotPlant_schema } from './objects/glassCylinderPotPlant.schema.js';
+import { handheldGameConsole_schema } from './objects/handheldGameConsole.schema.js';
+import { hangingDuctRail_schema } from './objects/hangingDuctRail.schema.js';
+import { hangingTShirt_schema } from './objects/hangingTShirt.schema.js';
+import { icosahedron_schema } from './objects/icosahedron.schema.js';
+import { ironFrameShelf5_schema, ironFrameShelf4_schema, ironFrameShelf3_schema } from './objects/ironFrameShelf.schema.js';
+import { ironFrameTable_schema } from './objects/ironFrameTable.schema.js';
+import { issyoubin_schema } from './objects/issyoubin.schema.js';
+import { keyboard_schema } from './objects/keyboard.schema.js';
+import { laptopPc_schema } from './objects/laptopPc.schema.js';
+import { largeMousepad_schema } from './objects/largeMousepad.schema.js';
+import { lavaLamp_schema } from './objects/lavaLamp.schema.js';
+import { letterCase_schema } from './objects/letterCase.schema.js';
+import { lowPartitionBar_schema } from './objects/lowPartitionBar.schema.js';
+import { miObjet_schema } from './objects/miObjet.schema.js';
+import { milk_schema } from './objects/milk.schema.js';
+import { miPlate_schema } from './objects/miPlate.schema.js';
+import { miPlateDisplayed_schema } from './objects/miPlateDisplayed.schema.js';
+import { mixer_schema } from './objects/mixer.schema.js';
+import { monitor_schema } from './objects/monitor.schema.js';
+import { monitorSpeaker_schema } from './objects/monitorSpeaker.schema.js';
+import { monstera_schema } from './objects/monstera.schema.js';
+import { mug_schema } from './objects/mug.schema.js';
+import { newtonsCradle_schema } from './objects/newtonsCradle.schema.js';
+import { openedCardboardBox_schema } from './objects/openedCardboardBox.schema.js';
+import { pachira_schema } from './objects/pachira.schema.js';
+import { petBottle_schema } from './objects/petBottle.schema.js';
+import { piano_schema } from './objects/piano.schema.js';
+import { pictureFrame_schema } from './objects/pictureFrame.schema.js';
+import { pizza_schema } from './objects/pizza.schema.js';
+import { plant_schema } from './objects/plant.schema.js';
+import { plant2_schema } from './objects/plant2.schema.js';
+import { poster_schema } from './objects/poster.schema.js';
+import { powerStrip_schema } from './objects/powerStrip.schema.js';
+import { radiometer_schema } from './objects/radiometer.schema.js';
+import { randomBooks_schema } from './objects/randomBooks.schema.js';
+import { recordPlayer_schema } from './objects/recordPlayer.schema.js';
+import { rolledUpPoster_schema } from './objects/rolledUpPoster.schema.js';
+import { roundRug_schema } from './objects/roundRug.schema.js';
+import { router_schema } from './objects/router.schema.js';
+import { siphon_schema } from './objects/siphon.schema.js';
+import { snakeplant_schema } from './objects/snakeplant.schema.js';
+import { sofa_schema } from './objects/sofa.schema.js';
+import { speaker_schema } from './objects/speaker.schema.js';
+import { speakerStand_schema } from './objects/speakerStand.schema.js';
+import { spotLight_schema } from './objects/spotLight.schema.js';
+import { sprayer_schema } from './objects/sprayer.schema.js';
+import { stanchionPole_schema } from './objects/stanchionPole.schema.js';
+import { steelRack_schema } from './objects/steelRack.schema.js';
+import { stormGlass_schema } from './objects/stormGlass.schema.js';
+import { tableSalt_schema } from './objects/tableSalt.schema.js';
+import { tabletopCalendar_schema } from './objects/tabletopCalendar.schema.js';
+import { tabletopDigitalClock_schema } from './objects/tabletopDigitalClock.schema.js';
+import { tabletopFlag_schema } from './objects/tabletopFlag.schema.js';
+import { tabletopGlassPictureFrame_schema } from './objects/tabletopGlassPictureFrame.schema.js';
+import { tabletopIronFrameStand_schema } from './objects/tabletopIronFrameStand.schema.js';
+import { tabletopLcdButtonsController_schema } from './objects/tabletopLcdButtonsController.schema.js';
+import { tabletopPictureFrame_schema } from './objects/tabletopPictureFrame.schema.js';
+import { tapestry_schema } from './objects/tapestry.schema.js';
+import { tetrapod_schema } from './objects/tetrapod.schema.js';
+import { tv_schema } from './objects/tv.schema.js';
+import { twistedCubeObjet_schema } from './objects/twistedCubeObjet.schema.js';
+import { usedTissue_schema } from './objects/usedTissue.schema.js';
+import { wallCanvas_schema } from './objects/wallCanvas.schema.js';
+import { wallClock_schema } from './objects/wallClock.schema.js';
+import { wallGlassPictureFrame_schema } from './objects/wallGlassPictureFrame.schema.js';
+import { wallMirror_schema } from './objects/wallMirror.schema.js';
+import { wallMountSpotLight_schema } from './objects/wallMountSpotLight.schema.js';
+import { wallShelf_schema } from './objects/wallShelf.schema.js';
+import { wireBasket_schema } from './objects/wireBasket.schema.js';
+import { wireNet_schema } from './objects/wireNet.schema.js';
+import { woodRingFloorLamp_schema } from './objects/woodRingFloorLamp.schema.js';
+import { woodRingsPendantLight_schema } from './objects/woodRingsPendantLight.schema.js';
+import { woodSoundAbsorbingPanel_schema } from './objects/woodSoundAbsorbingPanel.schema.js';
+import type { ObjectSchemaDef } from './object.js';
+
+export const OBJECT_SCHEMA_DEFS = {
+	a4Case: a4Case_schema,
+	aircon: aircon_schema,
+	allInOnePc: allInOnePc_schema,
+	aquarium: aquarium_schema,
+	aromaReedDiffuser: aromaReedDiffuser_schema,
+	banknote: banknote_schema,
+	beamLamp: beamLamp_schema,
+	bed: bed_schema,
+	blind: blind_schema,
+	books: books_schema,
+	boxWallShelf: boxWallShelf_schema,
+	cactusS: cactusS_schema,
+	cardboardBox: cardboardBox_schema,
+	ceilingFanLight: ceilingFanLight_schema,
+	chair: chair_schema,
+	coffeeCup: coffeeCup_schema,
+	colorBox: colorBox_schema,
+	cuboid: cuboid_schema,
+	cupNoodle: cupNoodle_schema,
+	custardPudding: custardPudding_schema,
+	desk: desk_schema,
+	desktopPc: desktopPc_schema,
+	djMixer: djMixer_schema,
+	djPlayer: djPlayer_schema,
+	ductRailSpotLights: ductRailSpotLights_schema,
+	ductTape: ductTape_schema,
+	electronicDisplayBoard: electronicDisplayBoard_schema,
+	emptyBento: emptyBento_schema,
+	energyDrink: energyDrink_schema,
+	envelope: envelope_schema,
+	facialTissue: facialTissue_schema,
+	glassCylinderPotPlant: glassCylinderPotPlant_schema,
+	hangingTShirt: hangingTShirt_schema,
+	icosahedron: icosahedron_schema,
+	ironFrameShelf5: ironFrameShelf5_schema,
+	ironFrameShelf4: ironFrameShelf4_schema,
+	ironFrameShelf3: ironFrameShelf3_schema,
+	ironFrameTable: ironFrameTable_schema,
+	issyoubin: issyoubin_schema,
+	keyboard: keyboard_schema,
+	laptopPc: laptopPc_schema,
+	largeMousepad: largeMousepad_schema,
+	lavaLamp: lavaLamp_schema,
+	letterCase: letterCase_schema,
+	miObjet: miObjet_schema,
+	milk: milk_schema,
+	miPlate: miPlate_schema,
+	miPlateDisplayed: miPlateDisplayed_schema,
+	mixer: mixer_schema,
+	monitor: monitor_schema,
+	monitorSpeaker: monitorSpeaker_schema,
+	monstera: monstera_schema,
+	mug: mug_schema,
+	newtonsCradle: newtonsCradle_schema,
+	openedCardboardBox: openedCardboardBox_schema,
+	pachira: pachira_schema,
+	petBottle: petBottle_schema,
+	piano: piano_schema,
+	pictureFrame: pictureFrame_schema,
+	pizza: pizza_schema,
+	plant: plant_schema,
+	plant2: plant2_schema,
+	poster: poster_schema,
+	powerStrip: powerStrip_schema,
+	radiometer: radiometer_schema,
+	randomBooks: randomBooks_schema,
+	recordPlayer: recordPlayer_schema,
+	rolledUpPoster: rolledUpPoster_schema,
+	roundRug: roundRug_schema,
+	router: router_schema,
+	siphon: siphon_schema,
+	snakeplant: snakeplant_schema,
+	sofa: sofa_schema,
+	speaker: speaker_schema,
+	speakerStand: speakerStand_schema,
+	sprayer: sprayer_schema,
+	steelRack: steelRack_schema,
+	stormGlass: stormGlass_schema,
+	tableSalt: tableSalt_schema,
+	tabletopCalendar: tabletopCalendar_schema,
+	tabletopDigitalClock: tabletopDigitalClock_schema,
+	tabletopFlag: tabletopFlag_schema,
+	tabletopGlassPictureFrame: tabletopGlassPictureFrame_schema,
+	tabletopIronFrameStand: tabletopIronFrameStand_schema,
+	tabletopPictureFrame: tabletopPictureFrame_schema,
+	tabletopLcdButtonsController: tabletopLcdButtonsController_schema,
+	tapestry: tapestry_schema,
+	tetrapod: tetrapod_schema,
+	tv: tv_schema,
+	twistedCubeObjet: twistedCubeObjet_schema,
+	usedTissue: usedTissue_schema,
+	wallCanvas: wallCanvas_schema,
+	wallClock: wallClock_schema,
+	wallGlassPictureFrame: wallGlassPictureFrame_schema,
+	wallMirror: wallMirror_schema,
+	wallMountSpotLight: wallMountSpotLight_schema,
+	wallShelf: wallShelf_schema,
+	woodRingFloorLamp: woodRingFloorLamp_schema,
+	woodRingsPendantLight: woodRingsPendantLight_schema,
+	woodSoundAbsorbingPanel: woodSoundAbsorbingPanel_schema,
+	hangingDuctRail: hangingDuctRail_schema,
+	spotLight: spotLight_schema,
+	lowPartitionBar: lowPartitionBar_schema,
+	descriptionPlate: descriptionPlate_schema,
+	stanchionPole: stanchionPole_schema,
+	handheldGameConsole: handheldGameConsole_schema,
+	curtain: curtain_schema,
+	wireNet: wireNet_schema,
+	clippedPicture: clippedPicture_schema,
+	wireBasket: wireBasket_schema,
+};
+
+export function getObjectSchemaDef(type: string): ObjectSchemaDef {
+	const def = OBJECT_SCHEMA_DEFS[type as keyof typeof OBJECT_SCHEMA_DEFS];
+	if (def == null) {
+		throw new Error(`Unrecognized object type: ${type}`);
+	}
+	return def;
+}