diff --git a/packages/backend/package.json b/packages/backend/package.json
index 01dc4ebe..52f91e7f 100644
--- a/packages/backend/package.json
+++ b/packages/backend/package.json
@@ -36,7 +36,6 @@
 		"@peertube/http-signature": "1.7.0",
 		"@redocly/openapi-core": "1.4.0",
 		"@sinonjs/fake-timers": "11.2.2",
-		"@syuilo/aiscript": "0.11.1",
 		"@tensorflow/tfjs": "4.12.0",
 		"adm-zip": "0.5.10",
 		"ajv": "8.12.0",
diff --git a/packages/client/package.json b/packages/client/package.json
index c9da0480..9a0ddfe0 100644
--- a/packages/client/package.json
+++ b/packages/client/package.json
@@ -17,7 +17,7 @@
 		"@rollup/plugin-alias": "5.0.1",
 		"@rollup/plugin-json": "6.0.1",
 		"@rollup/pluginutils": "5.0.5",
-		"@syuilo/aiscript": "0.11.1",
+		"@syuilo/aiscript": "0.16.0",
 		"@types/glob": "8.1.0",
 		"@types/gulp": "4.0.16",
 		"@types/gulp-rename": "2.0.4",
diff --git a/packages/client/src/components/page/page.vue b/packages/client/src/components/page/page.vue
index 5edda71d..e43af6ad 100644
--- a/packages/client/src/components/page/page.vue
+++ b/packages/client/src/components/page/page.vue
@@ -17,7 +17,7 @@
 <script lang="ts">
 import type { PropType } from "vue";
 import { defineComponent, nextTick, onMounted, onUnmounted } from "vue";
-import { parse } from "@syuilo/aiscript";
+import { Parser } from "@syuilo/aiscript";
 import XBlock from "./page.block.vue";
 import { Hpml } from "@/scripts/hpml/evaluator";
 import { url } from "@/config";
@@ -42,12 +42,14 @@ export default defineComponent({
 			enableAiScript: !defaultStore.state.disablePagesScript,
 		});
 
+		const parser = new Parser();
+
 		onMounted(() => {
 			nextTick(() => {
 				if (props.page.script && hpml.aiscript) {
 					let ast;
 					try {
-						ast = parse(props.page.script);
+						ast = parser.parse(props.page.script);
 					} catch (err) {
 						console.error(err);
 						/* os.alert({
diff --git a/packages/client/src/pages/scratchpad.vue b/packages/client/src/pages/scratchpad.vue
index f6620e72..232a1ab8 100644
--- a/packages/client/src/pages/scratchpad.vue
+++ b/packages/client/src/pages/scratchpad.vue
@@ -45,7 +45,7 @@ import "prismjs/components/prism-javascript";
 import "prismjs/themes/prism-okaidia.css";
 import { PrismEditor } from "vue-prism-editor";
 import "vue-prism-editor/dist/prismeditor.min.css";
-import { AiScript, parse, utils } from "@syuilo/aiscript";
+import { Interpreter, Parser, utils } from "@syuilo/aiscript";
 import MkContainer from "@/components/MkContainer.vue";
 import MkButton from "@/components/MkButton.vue";
 import { createAiScriptEnv } from "@/scripts/aiscript/api";
@@ -58,6 +58,8 @@ import icon from "@/scripts/icon";
 const code = ref("");
 const logs = ref<any[]>([]);
 
+const parser = new Parser();
+
 const saved = localStorage.getItem("scratchpad");
 if (saved) {
 	code.value = saved;
@@ -69,7 +71,7 @@ watch(code, () => {
 
 async function run() {
 	logs.value = [];
-	const aiscript = new AiScript(
+	const aiscript = new Interpreter(
 		createAiScriptEnv({
 			storageKey: "scratchpad",
 			token: $i?.token,
@@ -112,11 +114,11 @@ async function run() {
 
 	let ast;
 	try {
-		ast = parse(code.value);
+		ast = parser.parse(code.value);
 	} catch (error) {
 		os.alert({
 			type: "error",
-			text: "Syntax error :(",
+			text: `Syntax error : ${error}`,
 		});
 		return;
 	}
diff --git a/packages/client/src/pages/settings/plugin.install.vue b/packages/client/src/pages/settings/plugin.install.vue
index ef6c6096..59d5a953 100644
--- a/packages/client/src/pages/settings/plugin.install.vue
+++ b/packages/client/src/pages/settings/plugin.install.vue
@@ -19,8 +19,7 @@
 
 <script lang="ts" setup>
 import { defineAsyncComponent, nextTick, ref } from "vue";
-import { AiScript, parse } from "@syuilo/aiscript";
-import { serialize } from "@syuilo/aiscript/built/serializer";
+import { Interpreter, Parser, utils } from "@syuilo/aiscript";
 import { v4 as uuid } from "uuid";
 import FormTextarea from "@/components/form/textarea.vue";
 import FormButton from "@/components/MkButton.vue";
@@ -30,11 +29,20 @@ import { ColdDeviceStorage } from "@/store";
 import { unisonReload } from "@/scripts/unison-reload";
 import { i18n } from "@/i18n";
 import { definePageMetadata } from "@/scripts/page-metadata";
+import { compareVersions } from "compare-versions";
 import icon from "@/scripts/icon";
 
-const code = ref(null);
+const code = ref<string>();
 
-function installPlugin({ id, meta, ast, token }) {
+function isSupportedVersion(version: string): boolean {
+	try {
+		return compareVersions(version, "0.12.0") >= 0;
+	} catch (err) {
+		return false;
+	}
+}
+
+function installPlugin({ id, meta, src, token }) {
 	ColdDeviceStorage.set(
 		"plugins",
 		ColdDeviceStorage.get("plugins").concat({
@@ -42,25 +50,46 @@ function installPlugin({ id, meta, ast, token }) {
 			id,
 			active: true,
 			configData: {},
+			src,
 			token,
-			ast,
 		}),
 	);
 }
 
+const parser = new Parser();
+
 async function install() {
-	let ast;
-	try {
-		ast = parse(code.value);
-	} catch (err) {
+	if (code.value == null) return;
+
+	const scriptVersion = utils.getLangVersion(code.value);
+
+	if (scriptVersion == null) {
 		os.alert({
 			type: "error",
-			text: "Syntax error :(",
+			text: "No language version annotation found :(",
+		});
+		return;
+	}
+	if (!isSupportedVersion(scriptVersion)) {
+		os.alert({
+			type: "error",
+			text: `aiscript version '${scriptVersion}' is not supported :(`,
 		});
 		return;
 	}
 
-	const meta = AiScript.collectMetadata(ast);
+	let ast;
+	try {
+		ast = parser.parse(code.value);
+	} catch (err) {
+		os.alert({
+			type: "error",
+			text: `Syntax error : ${err}`,
+		});
+		return;
+	}
+
+	const meta = Interpreter.collectMetadata(ast);
 	if (meta == null) {
 		os.alert({
 			type: "error",
@@ -83,7 +112,7 @@ async function install() {
 	if (name == null || version == null || author == null) {
 		os.alert({
 			type: "error",
-			text: "Required property not found :(",
+			text: "Required property (name, version, author) not found :(",
 		});
 		return;
 	}
@@ -134,8 +163,8 @@ async function install() {
 			permissions,
 			config,
 		},
+		src: code.value,
 		token,
-		ast: serialize(ast),
 	});
 
 	os.success();
diff --git a/packages/client/src/plugin.ts b/packages/client/src/plugin.ts
index 8e964ab3..44df90ff 100644
--- a/packages/client/src/plugin.ts
+++ b/packages/client/src/plugin.ts
@@ -1,6 +1,4 @@
-import { AiScript, utils, values } from "@syuilo/aiscript";
-import { deserialize } from "@syuilo/aiscript/built/serializer";
-import { jsToVal } from "@syuilo/aiscript/built/interpreter/util";
+import { Interpreter, Parser, utils, values } from "@syuilo/aiscript";
 import { createAiScriptEnv } from "@/scripts/aiscript/api";
 import { inputText } from "@/os";
 import {
@@ -11,12 +9,13 @@ import {
 	userActions,
 } from "@/store";
 
-const pluginContexts = new Map<string, AiScript>();
+const parser = new Parser();
+const pluginContexts = new Map<string, Interpreter>();
 
 export function install(plugin) {
 	console.info("Plugin installed:", plugin.name, `v${plugin.version}`);
 
-	const aiscript = new AiScript(
+	const aiscript = new Interpreter(
 		createPluginEnv({
 			plugin,
 			storageKey: `plugins:${plugin.id}`,
@@ -40,15 +39,15 @@ export function install(plugin) {
 
 	initPlugin({ plugin, aiscript });
 
-	aiscript.exec(deserialize(plugin.ast));
+	aiscript.exec(parser.parse(plugin.src));
 }
 
 function createPluginEnv(opts) {
-	const config = new Map();
-	for (const [k, v] of Object.entries(opts.plugin.config || {})) {
+	const config = new Map<string, values.Value>();
+	for (const [k, v] of Object.entries(opts.plugin.config ?? {})) {
 		config.set(
 			k,
-			jsToVal(
+			utils.jsToVal(
 				typeof opts.plugin.configData[k] !== "undefined"
 					? opts.plugin.configData[k]
 					: v.default,
@@ -114,6 +113,9 @@ function createPluginEnv(opts) {
 				handler,
 			});
 		}),
+		"Plugin:register_page_view_interruptor": values.FN_NATIVE(([handler]) => {
+			registerPageViewInterruptor({ pluginId: opts.plugin.id, handler });
+		}),
 		"Plugin:open_url": values.FN_NATIVE(([url]) => {
 			window.open(url.value, "_blank");
 		}),
@@ -129,10 +131,17 @@ function registerPostFormAction({ pluginId, title, handler }) {
 	postFormActions.push({
 		title,
 		handler: (form, update) => {
-			pluginContexts.get(pluginId).execFn(handler, [
+			const pluginContext = pluginContexts.get(pluginId);
+			if (!pluginContext) {
+				return;
+			}
+			pluginContext.execFn(handler, [
 				utils.jsToVal(form),
 				values.FN_NATIVE(([key, value]) => {
-					update(key.value, value.value);
+					if (!key || !value) {
+						return;
+					}
+					update(utils.valToJs(key), utils.valToJs(value));
 				}),
 			]);
 		},
@@ -143,7 +152,11 @@ function registerUserAction({ pluginId, title, handler }) {
 	userActions.push({
 		title,
 		handler: (user) => {
-			pluginContexts.get(pluginId).execFn(handler, [utils.jsToVal(user)]);
+			const pluginContext = pluginContexts.get(pluginId);
+			if (!pluginContext) {
+				return;
+			}
+			pluginContext.execFn(handler, [utils.jsToVal(user)]);
 		},
 	});
 }
@@ -152,7 +165,11 @@ function registerNoteAction({ pluginId, title, handler }) {
 	noteActions.push({
 		title,
 		handler: (note) => {
-			pluginContexts.get(pluginId).execFn(handler, [utils.jsToVal(note)]);
+			const pluginContext = pluginContexts.get(pluginId);
+			if (!pluginContext) {
+				return;
+			}
+			pluginContext.execFn(handler, [utils.jsToVal(user)]);
 		},
 	});
 }
@@ -160,10 +177,12 @@ function registerNoteAction({ pluginId, title, handler }) {
 function registerNoteViewInterruptor({ pluginId, handler }) {
 	noteViewInterruptors.push({
 		handler: async (note) => {
+			const pluginContext = pluginContexts.get(pluginId);
+			if (!pluginContext) {
+				return;
+			}
 			return utils.valToJs(
-				await pluginContexts
-					.get(pluginId)
-					.execFn(handler, [utils.jsToVal(note)]),
+				await pluginContext.execFn(handler, [utils.jsToVal(note)]),
 			);
 		},
 	});
@@ -172,10 +191,26 @@ function registerNoteViewInterruptor({ pluginId, handler }) {
 function registerNotePostInterruptor({ pluginId, handler }) {
 	notePostInterruptors.push({
 		handler: async (note) => {
+			const pluginContext = pluginContexts.get(pluginId);
+			if (!pluginContext) {
+				return;
+			}
 			return utils.valToJs(
-				await pluginContexts
-					.get(pluginId)
-					.execFn(handler, [utils.jsToVal(note)]),
+				await pluginContext.execFn(handler, [utils.jsToVal(note)]),
+			);
+		},
+	});
+}
+
+function registerPageViewInterruptor({ pluginId, handler }): void {
+	pageViewInterruptors.push({
+		handler: async (page) => {
+			const pluginContext = pluginContexts.get(pluginId);
+			if (!pluginContext) {
+				return;
+			}
+			return utils.valToJs(
+				await pluginContext.execFn(handler, [utils.jsToVal(page)]),
 			);
 		},
 	});
diff --git a/packages/client/src/scripts/aiscript/api.ts b/packages/client/src/scripts/aiscript/api.ts
index 55b89772..e0eed05c 100644
--- a/packages/client/src/scripts/aiscript/api.ts
+++ b/packages/client/src/scripts/aiscript/api.ts
@@ -54,5 +54,8 @@ export function createAiScriptEnv(opts) {
 				),
 			);
 		}),
+		"Mk:url": values.FN_NATIVE(() => {
+			return values.STR(window.location.href);
+		}),
 	};
 }
diff --git a/packages/client/src/scripts/hpml/evaluator.ts b/packages/client/src/scripts/hpml/evaluator.ts
index f9a08079..ba06a874 100644
--- a/packages/client/src/scripts/hpml/evaluator.ts
+++ b/packages/client/src/scripts/hpml/evaluator.ts
@@ -1,5 +1,5 @@
 import autobind from "autobind-decorator";
-import { AiScript, utils, values } from "@syuilo/aiscript";
+import { Interpreter, utils, values } from "@syuilo/aiscript";
 import type { Ref } from "vue";
 import { markRaw, ref, unref } from "vue";
 import { collectPageVars } from "../collect-page-vars";
@@ -19,7 +19,7 @@ export class Hpml {
 	private variables: Variable[];
 	private pageVars: PageVar[];
 	private envVars: Record<keyof typeof envVarsDef, any>;
-	public aiscript?: AiScript;
+	public aiscript?: Interpreter;
 	public pageVarUpdatedCallback?: values.VFn;
 	public canvases: Record<string, HTMLCanvasElement> = {};
 	public vars: Ref<Record<string, any>> = ref({});
@@ -40,7 +40,7 @@ export class Hpml {
 
 		if (this.opts.enableAiScript) {
 			this.aiscript = markRaw(
-				new AiScript(
+				new Interpreter(
 					{
 						...createAiScriptEnv({
 							storageKey: `pages:${this.page.id}`,
diff --git a/packages/client/src/widgets/aiscript.vue b/packages/client/src/widgets/aiscript.vue
index 5b6c886b..0f1469a0 100644
--- a/packages/client/src/widgets/aiscript.vue
+++ b/packages/client/src/widgets/aiscript.vue
@@ -27,9 +27,13 @@
 
 <script lang="ts" setup>
 import { ref } from "vue";
-import { AiScript, parse, utils } from "@syuilo/aiscript";
-import type { Widget, WidgetComponentExpose } from "./widget";
-import { useWidgetPropsManager } from "./widget";
+import { Interpreter, Parser, utils } from "@syuilo/aiscript";
+import {
+	useWidgetPropsManager,
+	WidgetComponentEmits,
+	WidgetComponentProps,
+} from "./widget";
+import type { WidgetComponentExpose } from "./widget";
 import type { GetFormResultType } from "@/scripts/form";
 import * as os from "@/os";
 import MkContainer from "@/components/MkContainer.vue";
@@ -55,11 +59,8 @@ const widgetPropsDef = {
 
 type WidgetProps = GetFormResultType<typeof widgetPropsDef>;
 
-// 現時点ではvueの制限によりimportしたtypeをジェネリックに渡せない
-// const props = defineProps<WidgetComponentProps<WidgetProps>>();
-// const emit = defineEmits<WidgetComponentEmits<WidgetProps>>();
-const props = defineProps<{ widget?: Widget<WidgetProps> }>();
-const emit = defineEmits<{ (ev: "updateProps", props: WidgetProps) }>();
+const props = defineProps<WidgetComponentProps<WidgetProps>>();
+const emit = defineEmits<WidgetComponentEmits<WidgetProps>>();
 
 const { widgetProps, configure } = useWidgetPropsManager(
 	name,
@@ -76,9 +77,11 @@ const logs = ref<
 	}[]
 >([]);
 
+const parser = new Parser();
+
 const run = async () => {
 	logs.value = [];
-	const aiscript = new AiScript(
+	const aiscript = new Interpreter(
 		createAiScriptEnv({
 			storageKey: "widget",
 			token: $i?.token,
@@ -121,11 +124,11 @@ const run = async () => {
 
 	let ast;
 	try {
-		ast = parse(widgetProps.script);
+		ast = parser.parse(widgetProps.script);
 	} catch (err) {
 		os.alert({
 			type: "error",
-			text: "Syntax error :(",
+			text: `Syntax error : ${err}`,
 		});
 		return;
 	}
@@ -134,7 +137,7 @@ const run = async () => {
 	} catch (err) {
 		os.alert({
 			type: "error",
-			text: err,
+			text: String(err),
 		});
 	}
 };
diff --git a/packages/client/src/widgets/button.vue b/packages/client/src/widgets/button.vue
index 35295d7a..696049a0 100644
--- a/packages/client/src/widgets/button.vue
+++ b/packages/client/src/widgets/button.vue
@@ -8,16 +8,16 @@
 
 <script lang="ts" setup>
 import { onMounted, onUnmounted, ref, watch } from "vue";
-import { AiScript, parse, utils } from "@syuilo/aiscript";
-import type { Widget, WidgetComponentExpose } from "./widget";
+import { Interpreter, Parser } from "@syuilo/aiscript";
+import { createAiScriptEnv } from "@/scripts/aiscript/api";
 import {
+	useWidgetPropsManager,
 	WidgetComponentEmits,
 	WidgetComponentProps,
-	useWidgetPropsManager,
 } from "./widget";
+import type { WidgetComponentExpose } from "./widget";
 import type { GetFormResultType } from "@/scripts/form";
 import * as os from "@/os";
-import { createAiScriptEnv } from "@/scripts/aiscript/api";
 import { $i } from "@/reactiveAccount";
 import MkButton from "@/components/MkButton.vue";
 
@@ -41,11 +41,8 @@ const widgetPropsDef = {
 
 type WidgetProps = GetFormResultType<typeof widgetPropsDef>;
 
-// 現時点ではvueの制限によりimportしたtypeをジェネリックに渡せない
-// const props = defineProps<WidgetComponentProps<WidgetProps>>();
-// const emit = defineEmits<WidgetComponentEmits<WidgetProps>>();
-const props = defineProps<{ widget?: Widget<WidgetProps> }>();
-const emit = defineEmits<{ (ev: "updateProps", props: WidgetProps) }>();
+const props = defineProps<WidgetComponentProps<WidgetProps>>();
+const emit = defineEmits<WidgetComponentEmits<WidgetProps>>();
 
 const { widgetProps, configure } = useWidgetPropsManager(
 	name,
@@ -54,8 +51,10 @@ const { widgetProps, configure } = useWidgetPropsManager(
 	emit,
 );
 
+const parser = new Parser();
+
 const run = async () => {
-	const aiscript = new AiScript(
+	const aiscript = new Interpreter(
 		createAiScriptEnv({
 			storageKey: "widget",
 			token: $i?.token,
@@ -81,11 +80,11 @@ const run = async () => {
 
 	let ast;
 	try {
-		ast = parse(widgetProps.script);
+		ast = parser.parse(widgetProps.script);
 	} catch (err) {
 		os.alert({
 			type: "error",
-			text: "Syntax error :(",
+			text: `Syntax error: ${err}`,
 		});
 		return;
 	}
@@ -94,7 +93,7 @@ const run = async () => {
 	} catch (err) {
 		os.alert({
 			type: "error",
-			text: err,
+			text: String(err),
 		});
 	}
 };
@@ -105,8 +104,3 @@ defineExpose<WidgetComponentExpose>({
 	id: props.widget ? props.widget.id : null,
 });
 </script>
-
-<style lang="scss" scoped>
-.mkw-button {
-}
-</style>