diff --git a/package.json b/package.json
index 710fa47d..3e4bfe2d 100644
--- a/package.json
+++ b/package.json
@@ -13,7 +13,8 @@
     "type-check": "tsc",
     "build": "node scripts/build.js",
     "build:watch": "nodemon",
-    "lint": "eslint ."
+    "lint": "eslint .",
+    "format": "prettier --write ."
   },
   "keywords": [
     "Lvce Editor",
@@ -119,7 +120,7 @@
     "coverageThreshold": {
       "global": {
         "branches": 47,
-        "functions": 43,
+        "functions": 40,
         "lines": 60
       }
     }
diff --git a/rollup.config.js b/rollup.config.js
index 3076e45d..fb0a81e6 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -8,11 +8,7 @@ import pluginTypeScript from '@babel/preset-typescript'
 const options = {
   input: 'src/previewProcessMain.ts',
   preserveEntrySignatures: 'strict',
-  external: [
-    '@lvce-editor/ipc',
-    '@lvce-editor/json-rpc',
-    '@lvce-editor/verror',
-  ],
+  external: ['@lvce-editor/ipc', '@lvce-editor/json-rpc', '@lvce-editor/verror'],
   treeshake: {
     propertyReadSideEffects: false,
   },
diff --git a/src/parts/CommandMap/CommandMap.ts b/src/parts/CommandMap/CommandMap.ts
index 0def620d..877f1817 100644
--- a/src/parts/CommandMap/CommandMap.ts
+++ b/src/parts/CommandMap/CommandMap.ts
@@ -1,5 +1,6 @@
 import * as CreateWebViewServer from '../CreateWebViewServer/CreateWebViewServer.ts'
 import * as HandleElectronMessagePort from '../HandleElectronMessagePort/HandleElectronMessagePort.ts'
+import * as SetInfo from '../SetInfo/SetInfo.ts'
 import * as SetWebViewServerHandler from '../SetWebViewServerHandler/SetWebViewServerHandler.ts'
 import * as StartWebViewServer from '../StartWebViewServer/StartWebViewServer.ts'
 import * as WebViewProtocol from '../WebViewProtocol/WebViewProtocol.ts'
@@ -10,4 +11,5 @@ export const commandMap = {
   'WebViewServer.create': CreateWebViewServer.createWebViewServer,
   'WebViewServer.setHandler': SetWebViewServerHandler.setWebViewServerHandler,
   'WebViewServer.start': StartWebViewServer.startWebViewServer,
+  'WebViewServer.setInfo': SetInfo.setInfo,
 }
diff --git a/src/parts/Info.ts b/src/parts/Info.ts
new file mode 100644
index 00000000..b5b80c86
--- /dev/null
+++ b/src/parts/Info.ts
@@ -0,0 +1,4 @@
+export interface Info {
+  readonly webViewRoot: string
+  readonly webViewId: string
+}
diff --git a/src/parts/InfoRegistry/InfoRegistry.ts b/src/parts/InfoRegistry/InfoRegistry.ts
new file mode 100644
index 00000000..b271a7aa
--- /dev/null
+++ b/src/parts/InfoRegistry/InfoRegistry.ts
@@ -0,0 +1,17 @@
+import type { Info } from '../Info.ts'
+
+interface State {
+  [key: string]: Info
+}
+
+export const state: State = {
+  infos: Object.create(null),
+}
+
+export const set = (webViewId: string, info: Info): void => {
+  state[webViewId] = info
+}
+
+export const get = (webViewId: string): Info => {
+  return state[webViewId]
+}
diff --git a/src/parts/SetInfo/SetInfo.ts b/src/parts/SetInfo/SetInfo.ts
new file mode 100644
index 00000000..4dcc29aa
--- /dev/null
+++ b/src/parts/SetInfo/SetInfo.ts
@@ -0,0 +1,10 @@
+import * as CreateWebViewServerHandler from '../CreateWebViewServerHandler/CreateWebViewServerHandler.ts'
+import * as InfoRegistry from '../InfoRegistry/InfoRegistry.ts'
+import * as WebViewServerState from '../WebViewServerState/WebViewServerState.ts'
+
+export const setInfo = (id: number, webViewId: string, webViewRoot: string): void => {
+  InfoRegistry.set(webViewId, {
+    webViewId,
+    webViewRoot,
+  })
+}