diff --git a/packages/frontend/src/components/MkNote.vue b/packages/frontend/src/components/MkNote.vue
index f3f8c1ce82..ca778d87de 100644
--- a/packages/frontend/src/components/MkNote.vue
+++ b/packages/frontend/src/components/MkNote.vue
@@ -222,7 +222,7 @@ import { isEnabledUrlPreview } from '@/instance.js';
 import { focusPrev, focusNext } from '@/utility/focus.js';
 import { getAppearNote } from '@/utility/get-appear-note.js';
 import { prefer } from '@/preferences.js';
-import { noteViewInterruptors } from '@/plugin.js';
+import { getPluginHandlers } from '@/plugin.js';
 
 const props = withDefaults(defineProps<{
 	note: Misskey.entities.Note;
@@ -248,6 +248,7 @@ const currentClip = inject<Ref<Misskey.entities.Clip> | null>('currentClip', nul
 const note = ref(deepClone(props.note));
 
 // plugin
+const noteViewInterruptors = getPluginHandlers('note_view_interruptor');
 if (noteViewInterruptors.length > 0) {
 	onMounted(async () => {
 		let result: Misskey.entities.Note | null = deepClone(note.value);
diff --git a/packages/frontend/src/components/MkNoteDetailed.vue b/packages/frontend/src/components/MkNoteDetailed.vue
index 7f982858f1..3f3dbf6d83 100644
--- a/packages/frontend/src/components/MkNoteDetailed.vue
+++ b/packages/frontend/src/components/MkNoteDetailed.vue
@@ -254,7 +254,7 @@ import MkButton from '@/components/MkButton.vue';
 import { isEnabledUrlPreview } from '@/instance.js';
 import { getAppearNote } from '@/utility/get-appear-note.js';
 import { prefer } from '@/preferences.js';
-import { noteViewInterruptors } from '@/plugin.js';
+import { getPluginHandlers } from '@/plugin.js';
 
 const props = withDefaults(defineProps<{
 	note: Misskey.entities.Note;
@@ -268,6 +268,7 @@ const inChannel = inject('inChannel', null);
 const note = ref(deepClone(props.note));
 
 // plugin
+const noteViewInterruptors = getPluginHandlers('note_view_interruptor');
 if (noteViewInterruptors.length > 0) {
 	onMounted(async () => {
 		let result: Misskey.entities.Note | null = deepClone(note.value);
diff --git a/packages/frontend/src/components/MkPostForm.vue b/packages/frontend/src/components/MkPostForm.vue
index 4edb147b86..755e13279c 100644
--- a/packages/frontend/src/components/MkPostForm.vue
+++ b/packages/frontend/src/components/MkPostForm.vue
@@ -136,7 +136,7 @@ import { claimAchievement } from '@/utility/achievements.js';
 import { emojiPicker } from '@/utility/emoji-picker.js';
 import { mfmFunctionPicker } from '@/utility/mfm-function-picker.js';
 import { prefer } from '@/preferences.js';
-import { notePostInterruptors, postFormActions } from '@/plugin.js';
+import { getPluginHandlers } from '@/plugin.js';
 
 const $i = signinRequired();
 
@@ -197,6 +197,7 @@ const showingOptions = ref(false);
 const textAreaReadOnly = ref(false);
 const justEndedComposition = ref(false);
 const renoteTargetNote: ShallowRef<PostFormProps['renote'] | null> = shallowRef(props.renote);
+const postFormActions = getPluginHandlers('post_form_action');
 
 const draftKey = computed((): string => {
 	let key = props.channel ? `channel:${props.channel.id}` : '';
@@ -823,6 +824,7 @@ async function post(ev?: MouseEvent) {
 	}
 
 	// plugin
+	const notePostInterruptors = getPluginHandlers('note_post_interruptor');
 	if (notePostInterruptors.length > 0) {
 		for (const interruptor of notePostInterruptors) {
 			try {
diff --git a/packages/frontend/src/pages/page.vue b/packages/frontend/src/pages/page.vue
index 18322cde91..0405a722ab 100644
--- a/packages/frontend/src/pages/page.vue
+++ b/packages/frontend/src/pages/page.vue
@@ -122,7 +122,7 @@ import { getStaticImageUrl } from '@/utility/media-proxy.js';
 import { copyToClipboard } from '@/utility/copy-to-clipboard.js';
 import { useRouter } from '@/router/supplier.js';
 import { prefer } from '@/preferences.js';
-import { pageViewInterruptors } from '@/plugin.js';
+import { getPluginHandlers } from '@/plugin.js';
 
 const router = useRouter();
 
@@ -151,6 +151,7 @@ function fetchPage() {
 		page.value = _page;
 
 		// plugin
+		const pageViewInterruptors = getPluginHandlers('page_view_interruptor');
 		if (pageViewInterruptors.length > 0) {
 			let result = deepClone(_page);
 			for (const interruptor of pageViewInterruptors) {
diff --git a/packages/frontend/src/pages/settings/plugin.vue b/packages/frontend/src/pages/settings/plugin.vue
index 741c776bb8..5619d696f2 100644
--- a/packages/frontend/src/pages/settings/plugin.vue
+++ b/packages/frontend/src/pages/settings/plugin.vue
@@ -28,14 +28,14 @@ SPDX-License-Identifier: AGPL-3.0-only
 					</template>
 					<template #footer>
 						<div class="_buttons">
-							<MkButton v-if="plugin.config" inline @click="config(plugin)"><i class="ti ti-settings"></i> {{ i18n.ts.settings }}</MkButton>
-							<MkButton inline danger @click="uninstall(plugin)"><i class="ti ti-trash"></i> {{ i18n.ts.uninstall }}</MkButton>
+							<MkButton :disabled="!plugin.active" @click="reload(plugin)"><i class="ti ti-refresh"></i> {{ i18n.ts.reload }}</MkButton>
+							<MkButton danger @click="uninstall(plugin)"><i class="ti ti-trash"></i> {{ i18n.ts.uninstall }}</MkButton>
+							<MkButton v-if="plugin.config" style="margin-left: auto;" @click="config(plugin)"><i class="ti ti-settings"></i> {{ i18n.ts.settings }}</MkButton>
 						</div>
 					</template>
 
 					<div class="_gaps_m">
 						<div class="_gaps_s">
-							<span style="display: flex; align-items: center;"><b>{{ plugin.name }}</b><span style="margin-left: auto;">v{{ plugin.version }}</span></span>
 							<MkSwitch :modelValue="plugin.active" @update:modelValue="changeActive(plugin, $event)">{{ i18n.ts.makeActive }}</MkSwitch>
 						</div>
 
@@ -64,10 +64,6 @@ SPDX-License-Identifier: AGPL-3.0-only
 							<template #label>{{ i18n.ts._plugin.viewLog }}</template>
 
 							<div class="_gaps_s">
-								<div class="_buttons">
-									<MkButton inline @click="copy(pluginLogs.get(plugin.installId)?.join('\n'))"><i class="ti ti-copy"></i> {{ i18n.ts.copy }}</MkButton>
-								</div>
-
 								<MkCode :code="pluginLogs.get(plugin.installId)?.join('\n') ?? ''"/>
 							</div>
 						</MkFolder>
@@ -77,10 +73,6 @@ SPDX-License-Identifier: AGPL-3.0-only
 							<template #label>{{ i18n.ts._plugin.viewSource }}</template>
 
 							<div class="_gaps_s">
-								<div class="_buttons">
-									<MkButton inline @click="copy(plugin.src)"><i class="ti ti-copy"></i> {{ i18n.ts.copy }}</MkButton>
-								</div>
-
 								<MkCode :code="plugin.src ?? ''" lang="ais"/>
 							</div>
 						</MkFolder>
@@ -94,6 +86,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 
 <script lang="ts" setup>
 import { nextTick, ref, computed } from 'vue';
+import type { Plugin } from '@/plugin.js';
 import FormLink from '@/components/form/link.vue';
 import MkSwitch from '@/components/MkSwitch.vue';
 import FormSection from '@/components/form/section.vue';
@@ -101,36 +94,30 @@ import MkButton from '@/components/MkButton.vue';
 import MkCode from '@/components/MkCode.vue';
 import MkFolder from '@/components/MkFolder.vue';
 import MkKeyValue from '@/components/MkKeyValue.vue';
-import * as os from '@/os.js';
-import { copyToClipboard } from '@/utility/copy-to-clipboard.js';
 import { unisonReload } from '@/utility/unison-reload.js';
 import { i18n } from '@/i18n.js';
 import { definePageMetadata } from '@/utility/page-metadata.js';
-import { changePluginActive, configPlugin, pluginLogs, uninstallPlugin } from '@/plugin.js';
+import { changePluginActive, configPlugin, pluginLogs, uninstallPlugin, reloadPlugin } from '@/plugin.js';
 import { prefer } from '@/preferences.js';
 
 const plugins = prefer.r.plugins;
 
-async function uninstall(plugin) {
+async function uninstall(plugin: Plugin) {
 	await uninstallPlugin(plugin);
 	nextTick(() => {
 		unisonReload();
 	});
 }
 
-function copy(text) {
-	copyToClipboard(text ?? '');
-	os.success();
+function reload(plugin: Plugin) {
+	reloadPlugin(plugin);
 }
 
-async function config(plugin) {
+async function config(plugin: Plugin) {
 	await configPlugin(plugin);
-	nextTick(() => {
-		location.reload();
-	});
 }
 
-function changeActive(plugin, active) {
+function changeActive(plugin: Plugin, active: boolean) {
 	changePluginActive(plugin, active);
 	nextTick(() => {
 		location.reload();
diff --git a/packages/frontend/src/plugin.ts b/packages/frontend/src/plugin.ts
index 3639d628c2..15644870e5 100644
--- a/packages/frontend/src/plugin.ts
+++ b/packages/frontend/src/plugin.ts
@@ -37,40 +37,6 @@ export type AiScriptPluginMeta = {
 	config?: Record<string, any>;
 };
 
-interface PostFormAction {
-	title: string,
-	handler: <T>(form: T, update: (key: unknown, value: unknown) => void) => void;
-}
-
-interface UserAction {
-	title: string,
-	handler: (user: Misskey.entities.UserDetailed) => void;
-}
-
-interface NoteAction {
-	title: string,
-	handler: (note: Misskey.entities.Note) => void;
-}
-
-interface NoteViewInterruptor {
-	handler: (note: Misskey.entities.Note) => unknown;
-}
-
-interface NotePostInterruptor {
-	handler: (note: FIXME) => unknown;
-}
-
-interface PageViewInterruptor {
-	handler: (page: Misskey.entities.Page) => unknown;
-}
-
-export const postFormActions: PostFormAction[] = [];
-export const userActions: UserAction[] = [];
-export const noteActions: NoteAction[] = [];
-export const noteViewInterruptors: NoteViewInterruptor[] = [];
-export const notePostInterruptors: NotePostInterruptor[] = [];
-export const pageViewInterruptors: PageViewInterruptor[] = [];
-
 const parser = new Parser();
 
 export function isSupportedAiScriptVersion(version: string): boolean {
@@ -215,6 +181,42 @@ export function changePluginActive(plugin: Plugin, active: boolean) {
 const pluginContexts = new Map<string, Interpreter>();
 export const pluginLogs = ref(new Map<string, string[]>());
 
+type HandlerDef = {
+	post_form_action: {
+		title: string,
+		handler: <T>(form: T, update: (key: unknown, value: unknown) => void) => void;
+	};
+	user_action: {
+		title: string,
+		handler: (user: Misskey.entities.UserDetailed) => void;
+	};
+	note_action: {
+		title: string,
+		handler: (note: Misskey.entities.Note) => void;
+	};
+	note_view_interruptor: {
+		handler: (note: Misskey.entities.Note) => unknown;
+	};
+	note_post_interruptor: {
+		handler: (note: FIXME) => unknown;
+	};
+	page_view_interruptor: {
+		handler: (page: Misskey.entities.Page) => unknown;
+	};
+};
+
+type PluginHandler<K extends keyof HandlerDef> = {
+	pluginInstallId: string;
+	type: K;
+	ctx: HandlerDef[K];
+};
+
+let pluginHandlers: PluginHandler<keyof HandlerDef>[] = [];
+
+function addPluginHandler<K extends keyof HandlerDef>(installId: Plugin['installId'], type: K, ctx: PluginHandler<K>['ctx']) {
+	pluginHandlers.push({ pluginInstallId: installId, type, ctx });
+}
+
 export async function launchPlugin(plugin: Plugin): Promise<void> {
 	// 後方互換性のため
 	if (plugin.src == null) return;
@@ -252,6 +254,18 @@ export async function launchPlugin(plugin: Plugin): Promise<void> {
 	);
 }
 
+export function reloadPlugin(plugin: Plugin): void {
+	const pluginContext = pluginContexts.get(plugin.installId);
+	if (!pluginContext) return;
+
+	pluginContext.abort();
+	pluginContexts.delete(plugin.installId);
+	pluginLogs.value.delete(plugin.installId);
+	pluginHandlers = pluginHandlers.filter(x => x.pluginInstallId !== plugin.installId);
+
+	launchPlugin(plugin);
+}
+
 function createPluginEnv(opts: { plugin: Plugin; storageKey: string }): Record<string, values.Value> {
 	const id = opts.plugin.installId;
 
@@ -260,111 +274,90 @@ function createPluginEnv(opts: { plugin: Plugin; storageKey: string }): Record<s
 		config.set(k, utils.jsToVal(typeof opts.plugin.configData[k] !== 'undefined' ? opts.plugin.configData[k] : v.default));
 	}
 
+	function withContext<T>(fn: (ctx: Interpreter) => T): T {
+		console.log('withContext', id);
+		const ctx = pluginContexts.get(id);
+		if (!ctx) throw new Error('Plugin context not found');
+		return fn(ctx);
+	}
+
 	return {
 		...createAiScriptEnv({ ...opts, token: store.state.pluginTokens[id] }),
 
 		'Plugin:register_post_form_action': values.FN_NATIVE(([title, handler]) => {
 			utils.assertString(title);
-			registerPostFormAction({ pluginId: id, title: title.value, handler });
+			utils.assertFunction(handler);
+			addPluginHandler(id, 'post_form_action', {
+				title: title.value,
+				handler: withContext(ctx => (form, update) => {
+					ctx.execFn(handler, [utils.jsToVal(form), values.FN_NATIVE(([key, value]) => {
+						if (!key || !value) {
+							return;
+						}
+						update(utils.valToJs(key), utils.valToJs(value));
+					})]);
+				}),
+			});
 		}),
+
 		'Plugin:register_user_action': values.FN_NATIVE(([title, handler]) => {
 			utils.assertString(title);
-			registerUserAction({ pluginId: id, title: title.value, handler });
+			utils.assertFunction(handler);
+			addPluginHandler(id, 'user_action', {
+				title: title.value,
+				handler: withContext(ctx => (user) => {
+					ctx.execFn(handler, [utils.jsToVal(user)]);
+				}),
+			});
 		}),
+
 		'Plugin:register_note_action': values.FN_NATIVE(([title, handler]) => {
 			utils.assertString(title);
-			registerNoteAction({ pluginId: id, title: title.value, handler });
+			utils.assertFunction(handler);
+			addPluginHandler(id, 'note_action', {
+				title: title.value,
+				handler: withContext(ctx => (note) => {
+					ctx.execFn(handler, [utils.jsToVal(note)]);
+				}),
+			});
 		}),
+
 		'Plugin:register_note_view_interruptor': values.FN_NATIVE(([handler]) => {
-			registerNoteViewInterruptor({ pluginId: id, handler });
+			utils.assertFunction(handler);
+			addPluginHandler(id, 'note_view_interruptor', {
+				handler: withContext(ctx => async (note) => {
+					return utils.valToJs(await ctx.execFn(handler, [utils.jsToVal(note)]));
+				}),
+			});
 		}),
+
 		'Plugin:register_note_post_interruptor': values.FN_NATIVE(([handler]) => {
-			registerNotePostInterruptor({ pluginId: id, handler });
+			utils.assertFunction(handler);
+			addPluginHandler(id, 'note_post_interruptor', {
+				handler: withContext(ctx => async (note) => {
+					return utils.valToJs(await ctx.execFn(handler, [utils.jsToVal(note)]));
+				}),
+			});
 		}),
+
 		'Plugin:register_page_view_interruptor': values.FN_NATIVE(([handler]) => {
-			registerPageViewInterruptor({ pluginId: id, handler });
+			utils.assertFunction(handler);
+			addPluginHandler(id, 'page_view_interruptor', {
+				handler: withContext(ctx => async (page) => {
+					return utils.valToJs(await ctx.execFn(handler, [utils.jsToVal(page)]));
+				}),
+			});
 		}),
+
 		'Plugin:open_url': values.FN_NATIVE(([url]) => {
 			utils.assertString(url);
 			window.open(url.value, '_blank', 'noopener');
 		}),
+
 		'Plugin:config': values.OBJ(config),
 	};
 }
 
-function registerPostFormAction({ pluginId, title, handler }): void {
-	postFormActions.push({
-		title, handler: (form, update) => {
-			const pluginContext = pluginContexts.get(pluginId);
-			if (!pluginContext) {
-				return;
-			}
-			pluginContext.execFn(handler, [utils.jsToVal(form), values.FN_NATIVE(([key, value]) => {
-				if (!key || !value) {
-					return;
-				}
-				update(utils.valToJs(key), utils.valToJs(value));
-			})]);
-		},
-	});
-}
-
-function registerUserAction({ pluginId, title, handler }): void {
-	userActions.push({
-		title, handler: (user) => {
-			const pluginContext = pluginContexts.get(pluginId);
-			if (!pluginContext) {
-				return;
-			}
-			pluginContext.execFn(handler, [utils.jsToVal(user)]);
-		},
-	});
-}
-
-function registerNoteAction({ pluginId, title, handler }): void {
-	noteActions.push({
-		title, handler: (note) => {
-			const pluginContext = pluginContexts.get(pluginId);
-			if (!pluginContext) {
-				return;
-			}
-			pluginContext.execFn(handler, [utils.jsToVal(note)]);
-		},
-	});
-}
-
-function registerNoteViewInterruptor({ pluginId, handler }): void {
-	noteViewInterruptors.push({
-		handler: async (note) => {
-			const pluginContext = pluginContexts.get(pluginId);
-			if (!pluginContext) {
-				return;
-			}
-			return utils.valToJs(await pluginContext.execFn(handler, [utils.jsToVal(note)]));
-		},
-	});
-}
-
-function registerNotePostInterruptor({ pluginId, handler }): void {
-	notePostInterruptors.push({
-		handler: async (note) => {
-			const pluginContext = pluginContexts.get(pluginId);
-			if (!pluginContext) {
-				return;
-			}
-			return utils.valToJs(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)]));
-		},
-	});
+export function getPluginHandlers<K extends keyof HandlerDef>(type: K): HandlerDef[K][] {
+	return pluginHandlers.filter((x): x is PluginHandler<K> => x.type === type).map(x => x.ctx);
 }
diff --git a/packages/frontend/src/utility/get-note-menu.ts b/packages/frontend/src/utility/get-note-menu.ts
index 7bc4ba1026..9c37070784 100644
--- a/packages/frontend/src/utility/get-note-menu.ts
+++ b/packages/frontend/src/utility/get-note-menu.ts
@@ -24,7 +24,7 @@ import { isSupportShare } from '@/utility/navigator.js';
 import { getAppearNote } from '@/utility/get-appear-note.js';
 import { genEmbedCode } from '@/utility/get-embed-code.js';
 import { prefer } from '@/preferences.js';
-import { noteActions } from '@/plugin.js';
+import { getPluginHandlers } from '@/plugin.js';
 
 export async function getNoteClipMenu(props: {
 	note: Misskey.entities.Note;
@@ -497,6 +497,7 @@ export function getNoteMenu(props: {
 		}
 	}
 
+	const noteActions = getPluginHandlers('note_action');
 	if (noteActions.length > 0) {
 		menuItems.push({ type: 'divider' });
 
diff --git a/packages/frontend/src/utility/get-user-menu.ts b/packages/frontend/src/utility/get-user-menu.ts
index 5fc1ffd3eb..1b9b0eac95 100644
--- a/packages/frontend/src/utility/get-user-menu.ts
+++ b/packages/frontend/src/utility/get-user-menu.ts
@@ -19,7 +19,7 @@ import { antennasCache, rolesCache, userListsCache } from '@/cache.js';
 import { mainRouter } from '@/router/main.js';
 import { genEmbedCode } from '@/utility/get-embed-code.js';
 import { prefer } from '@/preferences.js';
-import { userActions } from '@/plugin.js';
+import { getPluginHandlers } from '@/plugin.js';
 
 export function getUserMenu(user: Misskey.entities.UserDetailed, router: IRouter = mainRouter) {
 	const meId = $i ? $i.id : null;
@@ -419,6 +419,7 @@ export function getUserMenu(user: Misskey.entities.UserDetailed, router: IRouter
 		});
 	}
 
+	const userActions = getPluginHandlers('user_action');
 	if (userActions.length > 0) {
 		menuItems.push({ type: 'divider' }, ...userActions.map(action => ({
 			icon: 'ti ti-plug',