💾 chore: Enhance Local Storage Handling and Update MCP SDK (#6809)

* feat: Update MCP package version and dependencies; refactor ToolContentPart type * refactor: Change module type to commonjs and update rollup configuration, remove unused dev dependency * refactor: Change async calls to synchronous for MCP and FlowStateManager retrieval * chore: Add eslint disable comment for i18next rule in DropdownPopup component * fix: improve statefulness of mcp servers selected if some were removed since last session * feat: implement conversation storage cleanup functions and integrate them into mutation success handlers * feat: enhance storage condition logic in useLocalStorageAlt to prevent unnecessary local storage writes * refactor: streamline local storage update logic in useLocalStorageAlt
2025-12-17 08:50:15 +01:00 · 2025-04-09 18:38:48 -04:00 · 2025-04-09 18:38:48 -04:00 · e16a6190a5
commit e16a6190a5
parent 24c0433dcf
18 changed files with 420 additions and 382 deletions
--- a/api/config/index.js
+++ b/api/config/index.js
@ -1,6 +1,7 @@
 const axios = require('axios');
 const { EventSource } = require('eventsource');
 const { Time, CacheKeys } = require('librechat-data-provider');
+const { MCPManager, FlowStateManager } = require('librechat-mcp');
 const logger = require('./winston');

 global.EventSource = EventSource;
@ -9,11 +10,10 @@ let mcpManager = null;
 let flowManager = null;

 /**
- * @returns {Promise<MCPManager>}
+ * @returns {MCPManager}
 */
-async function getMCPManager() {
+function getMCPManager() {
  if (!mcpManager) {
-    const { MCPManager } = await import('librechat-mcp');
    mcpManager = MCPManager.getInstance(logger);
  }
  return mcpManager;
@ -21,11 +21,10 @@ async function getMCPManager() {

 /**
 * @param {(key: string) => Keyv} getLogStores
- * @returns {Promise<FlowStateManager>}
+ * @returns {FlowStateManager}
 */
-async function getFlowStateManager(getLogStores) {
+function getFlowStateManager(getLogStores) {
  if (!flowManager) {
-    const { FlowStateManager } = await import('librechat-mcp');
    flowManager = new FlowStateManager(getLogStores(CacheKeys.FLOWS), {
      ttl: Time.ONE_MINUTE * 3,
      logger,
--- a/api/server/controllers/PluginController.js
+++ b/api/server/controllers/PluginController.js
@ -108,7 +108,7 @@ const getAvailableTools = async (req, res) => {
    const pluginManifest = availableTools;
    const customConfig = await getCustomConfig();
    if (customConfig?.mcpServers != null) {
-      const mcpManager = await getMCPManager();
+      const mcpManager = getMCPManager();
      await mcpManager.loadManifestTools(pluginManifest);
    }

--- a/api/server/routes/actions.js
+++ b/api/server/routes/actions.js
@ -20,7 +20,7 @@ router.get('/:action_id/oauth/callback', async (req, res) => {
  const { action_id } = req.params;
  const { code, state } = req.query;

-  const flowManager = await getFlowStateManager(getLogStores);
+  const flowManager = getFlowStateManager(getLogStores);
  let identifier = action_id;
  try {
    let decodedState;
--- a/api/server/services/ActionService.js
+++ b/api/server/services/ActionService.js
@ -189,7 +189,7 @@ async function createActionTool({
                    expires_at: Date.now() + Time.TWO_MINUTES,
                  },
                };
-                const flowManager = await getFlowStateManager(getLogStores);
+                const flowManager = getFlowStateManager(getLogStores);
                await flowManager.createFlowWithHandler(
                  `${identifier}:oauth_login:${config.metadata.thread_id}:${config.metadata.run_id}`,
                  'oauth_login',
@ -265,7 +265,7 @@ async function createActionTool({
                    encrypted_oauth_client_id: encrypted.oauth_client_id,
                    encrypted_oauth_client_secret: encrypted.oauth_client_secret,
                  });
-                const flowManager = await getFlowStateManager(getLogStores);
+                const flowManager = getFlowStateManager(getLogStores);
                const refreshData = await flowManager.createFlowWithHandler(
                  `${identifier}:refresh`,
                  'oauth_refresh',
--- a/api/server/services/AppService.js
+++ b/api/server/services/AppService.js
@ -66,7 +66,7 @@ const AppService = async (app) => {
  });

  if (config.mcpServers != null) {
-    const mcpManager = await getMCPManager();
+    const mcpManager = getMCPManager();
    await mcpManager.initializeMCP(config.mcpServers, processMCPEnv);
    await mcpManager.mapAvailableTools(availableTools);
  }
--- a/api/server/services/MCP.js
+++ b/api/server/services/MCP.js
@ -49,7 +49,7 @@ async function createMCPTool({ req, toolKey, provider }) {
  /** @type {(toolArguments: Object | string, config?: GraphRunnableConfig) => Promise<unknown>} */
  const _call = async (toolArguments, config) => {
    try {
-      const mcpManager = await getMCPManager();
+      const mcpManager = getMCPManager();
      const result = await mcpManager.callTool({
        serverName,
        toolName,
--- a/client/src/components/Chat/Input/CodeInterpreter.tsx
+++ b/client/src/components/Chat/Input/CodeInterpreter.tsx
@ -17,6 +17,20 @@ import useLocalStorage from '~/hooks/useLocalStorageAlt';
 import { useVerifyAgentToolAuth } from '~/data-provider';
 import { ephemeralAgentByConvoId } from '~/store';

+const storageCondition = (value: unknown, rawCurrentValue?: string | null) => {
+  if (rawCurrentValue) {
+    try {
+      const currentValue = rawCurrentValue?.trim() ?? '';
+      if (currentValue === 'true' && value === false) {
+        return true;
+      }
+    } catch (e) {
+      console.error(e);
+    }
+  }
+  return value !== undefined && value !== null && value !== '' && value !== false;
+};
+
 function CodeInterpreter({ conversationId }: { conversationId?: string | null }) {
  const localize = useLocalize();
  const key = conversationId ?? Constants.NEW_CONVO;
@ -55,6 +69,7 @@ function CodeInterpreter({ conversationId }: { conversationId?: string | null })
    `${LocalStorageKeys.LAST_CODE_TOGGLE_}${key}`,
    isCodeToggleEnabled,
    setValue,
+    storageCondition,
  );

  const handleChange = useCallback(
--- a/client/src/components/Chat/Input/MCPSelect.tsx
+++ b/client/src/components/Chat/Input/MCPSelect.tsx
@ -8,14 +8,43 @@ import { ephemeralAgentByConvoId } from '~/store';
 import MCPIcon from '~/components/ui/MCPIcon';
 import { useLocalize } from '~/hooks';

+const storageCondition = (value: unknown, rawCurrentValue?: string | null) => {
+  if (rawCurrentValue) {
+    try {
+      const currentValue = rawCurrentValue?.trim() ?? '';
+      if (currentValue.length > 2) {
+        return true;
+      }
+    } catch (e) {
+      console.error(e);
+    }
+  }
+  return Array.isArray(value) && value.length > 0;
+};
+
 function MCPSelect({ conversationId }: { conversationId?: string | null }) {
  const localize = useLocalize();
-  const hasSetFetched = useRef(false);
  const key = conversationId ?? Constants.NEW_CONVO;
+  const hasSetFetched = useRef<string | null>(null);
+
+  const { data: mcpServerSet, isFetched } = useAvailableToolsQuery(EModelEndpoint.agents, {
+    select: (data) => {
+      const serverNames = new Set<string>();
+      data.forEach((tool) => {
+        if (tool.pluginKey.includes(Constants.mcp_delimiter)) {
+          const parts = tool.pluginKey.split(Constants.mcp_delimiter);
+          serverNames.add(parts[parts.length - 1]);
+        }
+      });
+      return serverNames;
+    },
+  });
+
  const [ephemeralAgent, setEphemeralAgent] = useRecoilState(ephemeralAgentByConvoId(key));
  const mcpState = useMemo(() => {
    return ephemeralAgent?.mcp ?? [];
  }, [ephemeralAgent?.mcp]);
+
  const setSelectedValues = useCallback(
    (values: string[] | null | undefined) => {
      if (!values) {
@ -35,33 +64,23 @@ function MCPSelect({ conversationId }: { conversationId?: string | null }) {
    `${LocalStorageKeys.LAST_MCP_}${key}`,
    mcpState,
    setSelectedValues,
+    storageCondition,
  );
-  const { data: mcpServers, isFetched } = useAvailableToolsQuery(EModelEndpoint.agents, {
-    select: (data) => {
-      const serverNames = new Set<string>();
-      data.forEach((tool) => {
-        if (tool.pluginKey.includes(Constants.mcp_delimiter)) {
-          const parts = tool.pluginKey.split(Constants.mcp_delimiter);
-          serverNames.add(parts[parts.length - 1]);
-        }
-      });
-      return [...serverNames];
-    },
-  });

  useEffect(() => {
-    if (hasSetFetched.current) {
+    if (hasSetFetched.current === key) {
      return;
    }
    if (!isFetched) {
      return;
    }
-    hasSetFetched.current = true;
-    if ((mcpServers?.length ?? 0) > 0) {
+    hasSetFetched.current = key;
+    if ((mcpServerSet?.size ?? 0) > 0) {
+      setMCPValues(mcpValues.filter((mcp) => mcpServerSet?.has(mcp)));
      return;
    }
    setMCPValues([]);
-  }, [isFetched, setMCPValues, mcpServers?.length]);
+  }, [isFetched, setMCPValues, mcpServerSet, key, mcpValues]);

  const renderSelectedValues = useCallback(
    (values: string[], placeholder?: string) => {
@ -76,7 +95,11 @@ function MCPSelect({ conversationId }: { conversationId?: string | null }) {
    [localize],
  );

-  if (!mcpServers || mcpServers.length === 0) {
+  const mcpServers = useMemo(() => {
+    return Array.from(mcpServerSet ?? []);
+  }, [mcpServerSet]);
+
+  if (!mcpServerSet || mcpServerSet.size === 0) {
    return null;
  }

--- a/client/src/components/Nav/SettingsTabs/Data/ClearChats.tsx
+++ b/client/src/components/Nav/SettingsTabs/Data/ClearChats.tsx
@ -3,6 +3,7 @@ import { useClearConversationsMutation } from 'librechat-data-provider/react-que
 import { Label, Button, OGDialog, OGDialogTrigger, Spinner } from '~/components';
 import { useLocalize, useNewConvo } from '~/hooks';
 import OGDialogTemplate from '~/components/ui/OGDialogTemplate';
+import { clearAllConversationStorage } from '~/utils';

 export const ClearChats = () => {
  const localize = useLocalize();
@ -15,6 +16,7 @@ export const ClearChats = () => {
      {},
      {
        onSuccess: () => {
+          clearAllConversationStorage();
          newConversation();
        },
      },
--- a/client/src/components/ui/DropdownPopup.tsx
+++ b/client/src/components/ui/DropdownPopup.tsx
@ -83,6 +83,7 @@ const DropdownPopup: React.FC<DropdownProps> = ({
                )}
                {item.label}
                {item.kbd != null && (
+                  // eslint-disable-next-line i18next/no-literal-string
                  <kbd className="ml-auto hidden font-sans text-xs text-black/50 group-hover:inline group-focus:inline dark:text-white/50">
                    ⌘{item.kbd}
                  </kbd>
--- a/client/src/data-provider/Auth/mutations.ts
+++ b/client/src/data-provider/Auth/mutations.ts
@ -4,6 +4,7 @@ import { MutationKeys, QueryKeys, dataService, request } from 'librechat-data-pr
 import type { UseMutationResult } from '@tanstack/react-query';
 import type * as t from 'librechat-data-provider';
 import useClearStates from '~/hooks/Config/useClearStates';
+import { clearAllConversationStorage } from '~/utils';
 import store from '~/store';

 /* login/logout */
@ -79,6 +80,7 @@ export const useDeleteUserMutation = (
    onSuccess: (...args) => {
      resetDefaultPreset();
      clearStates();
+      clearAllConversationStorage();
      queryClient.removeQueries();
      options?.onSuccess?.(...args);
    },
--- a/client/src/data-provider/mutations.ts
+++ b/client/src/data-provider/mutations.ts
@ -18,6 +18,7 @@ import {
  updateConvoFields,
  updateConversation,
  deleteConversation,
+  clearConversationStorage,
 } from '~/utils';

 export type TGenTitleMutation = UseMutationResult<
@ -562,6 +563,7 @@ export const useDeleteConversationMutation = (
        const current = queryClient.getQueryData<t.ConversationData>([QueryKeys.allConversations]);
        refetch({ refetchPage: (page, index) => index === (current?.pages.length ?? 1) - 1 });
        onSuccess?.(_data, vars, context);
+        clearConversationStorage(conversationId);
      },
      ..._options,
    },
@ -897,7 +899,7 @@ export const useUploadAssistantAvatarMutation = (
  unknown // context
 > => {
  return useMutation([MutationKeys.assistantAvatarUpload], {
-    // eslint-disable-next-line @typescript-eslint/no-unused-vars
+
    mutationFn: ({ postCreation, ...variables }: t.AssistantAvatarVariables) =>
      dataService.uploadAssistantAvatar(variables),
    ...(options || {}),
--- a/client/src/hooks/useLocalStorageAlt.tsx
+++ b/client/src/hooks/useLocalStorageAlt.tsx
@ -11,13 +11,16 @@ export default function useLocalStorage<T>(
  key: string,
  defaultValue: T,
  globalSetState?: (value: T) => void,
+  storageCondition?: (value: T, rawCurrentValue?: string | null) => boolean,
 ): [T, (value: T) => void] {
  const [value, setValue] = useState(defaultValue);

  useEffect(() => {
    const item = localStorage.getItem(key);

-    if (!item) {
+    if (!item && !storageCondition) {
+      localStorage.setItem(key, JSON.stringify(defaultValue));
+    } else if (!item && storageCondition && storageCondition(defaultValue)) {
      localStorage.setItem(key, JSON.stringify(defaultValue));
    }

@ -47,9 +50,14 @@ export default function useLocalStorage<T>(
  const setValueWrap = (value: T) => {
    try {
      setValue(value);
+      const storeLocal = () => {
        localStorage.setItem(key, JSON.stringify(value));
-      if (typeof window !== 'undefined') {
-        window.dispatchEvent(new StorageEvent('storage', { key }));
+        window?.dispatchEvent(new StorageEvent('storage', { key }));
+      };
+      if (!storageCondition) {
+        storeLocal();
+      } else if (storageCondition(value, localStorage.getItem(key))) {
+        storeLocal();
      }
      globalSetState?.(value);
    } catch (e) {
--- a/client/src/utils/localStorage.ts
+++ b/client/src/utils/localStorage.ts
@ -1,4 +1,4 @@
-import { LocalStorageKeys, TConversation } from 'librechat-data-provider';
+import { LocalStorageKeys, TConversation, isUUID } from 'librechat-data-provider';

 export function getLocalStorageItems() {
  const items = {
@ -45,3 +45,36 @@ export function clearLocalStorage(skipFirst?: boolean) {
    }
  });
 }
+
+export function clearConversationStorage(conversationId?: string | null) {
+  if (!conversationId) {
+    return;
+  }
+  if (!isUUID.safeParse(conversationId)?.success) {
+    console.warn(
+      `Conversation ID ${conversationId} is not a valid UUID. Skipping local storage cleanup.`,
+    );
+    return;
+  }
+  const keys = Object.keys(localStorage);
+  keys.forEach((key) => {
+    if (key.includes(conversationId)) {
+      localStorage.removeItem(key);
+    }
+  });
+}
+export function clearAllConversationStorage() {
+  const keys = Object.keys(localStorage);
+  keys.forEach((key) => {
+    if (
+      key.startsWith(LocalStorageKeys.LAST_MCP_) ||
+      key.startsWith(LocalStorageKeys.LAST_CODE_TOGGLE_) ||
+      key.startsWith(LocalStorageKeys.TEXT_DRAFT) ||
+      key.startsWith(LocalStorageKeys.ASST_ID_PREFIX) ||
+      key.startsWith(LocalStorageKeys.AGENT_ID_PREFIX) ||
+      key.startsWith(LocalStorageKeys.LAST_CONVO_SETUP)
+    ) {
+      localStorage.removeItem(key);
+    }
+  });
+}
--- a/package-lock.json
+++ b/package-lock.json
@ -18649,304 +18649,6 @@
        "zod": ">= 3"
      }
    },
-    "node_modules/@modelcontextprotocol/sdk": {
-      "version": "1.8.0",
-      "resolved": "https://registry.npmjs.org/@modelcontextprotocol/sdk/-/sdk-1.8.0.tgz",
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-        "cors": "^2.8.5",
-        "cross-spawn": "^7.0.3",
-        "eventsource": "^3.0.2",
-        "express": "^5.0.1",
-        "express-rate-limit": "^7.5.0",
-        "pkce-challenge": "^4.1.0",
-        "raw-body": "^3.0.0",
-        "zod": "^3.23.8",
-        "zod-to-json-schema": "^3.24.1"
-      },
-      "engines": {
-        "node": ">=18"
-      }
-    },
-    "node_modules/@modelcontextprotocol/sdk/node_modules/accepts": {
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@ -44077,6 +43954,50 @@
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+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/send/-/send-1.2.0.tgz",
+      "integrity": "sha512-uaW0WwXKpL9blXE2o0bRhoL2EGXIrZxQ2ZQ4mgcfoBxdFmQold+qWsD2jLrfZ0trjKL6vOw0j//eAwcALFjKSw==",
+      "dependencies": {
+        "debug": "^4.3.5",
+        "encodeurl": "^2.0.0",
+        "escape-html": "^1.0.3",
+        "etag": "^1.8.1",
+        "fresh": "^2.0.0",
+        "http-errors": "^2.0.0",
+        "mime-types": "^3.0.1",
+        "ms": "^2.1.3",
+        "on-finished": "^2.4.1",
+        "range-parser": "^1.2.1",
+        "statuses": "^2.0.1"
+      },
+      "engines": {
+        "node": ">= 18"
+      }
+    },
+    "packages/mcp/node_modules/serve-static": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-2.2.0.tgz",
+      "integrity": "sha512-61g9pCh0Vnh7IutZjtLGGpTA355+OPn2TyDv/6ivP2h/AdAVX9azsoxmg2/M6nZeQZNYBEwIcsne1mJd9oQItQ==",
+      "dependencies": {
+        "encodeurl": "^2.0.0",
+        "escape-html": "^1.0.3",
+        "parseurl": "^1.3.3",
+        "send": "^1.2.0"
+      },
+      "engines": {
+        "node": ">= 18"
+      }
+    },
+    "packages/mcp/node_modules/type-is": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/type-is/-/type-is-2.0.1.tgz",
+      "integrity": "sha512-OZs6gsjF4vMp32qrCbiVSkrFmXtG/AZhY3t0iAMrMBiAZyV9oALtXO8hsrHbMXF9x6L3grlFuwW2oAz7cav+Gw==",
+      "dependencies": {
+        "content-type": "^1.0.5",
+        "media-typer": "^1.1.0",
+        "mime-types": "^3.0.0"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
    }
  }
 }
--- a/packages/mcp/package.json
+++ b/packages/mcp/package.json
@ -1,21 +1,21 @@
 {
  "name": "librechat-mcp",
-  "version": "1.1.0",
-  "type": "module",
+  "version": "1.2.0",
+  "type": "commonjs",
  "description": "MCP services for LibreChat",
  "main": "dist/index.js",
  "module": "dist/index.es.js",
  "types": "./dist/types/index.d.ts",
  "exports": {
    ".": {
-      "import": "./dist/index.es.js",
+      "require": "./dist/index.js",
      "types": "./dist/types/index.d.ts"
    }
  },
  "scripts": {
    "clean": "rimraf dist",
-    "build": "npm run clean && rollup -c --configPlugin=@rollup/plugin-typescript",
-    "build:watch": "rollup -c -w --configPlugin=@rollup/plugin-typescript",
+    "build": "npm run clean && rollup -c --bundleConfigAsCjs",
+    "build:watch": "rollup -c -w --bundleConfigAsCjs",
    "test": "jest --coverage --watch",
    "test:ci": "jest --coverage --ci",
    "verify": "npm run test:ci",
@ -60,7 +60,6 @@
    "rollup": "^4.22.4",
    "rollup-plugin-generate-package-json": "^3.2.0",
    "rollup-plugin-peer-deps-external": "^2.2.4",
-    "rollup-plugin-typescript2": "^0.35.0",
    "ts-node": "^10.9.2",
    "typescript": "^5.0.4"
  },
@ -68,7 +67,7 @@
    "registry": "https://registry.npmjs.org/"
  },
  "dependencies": {
-    "@modelcontextprotocol/sdk": "^1.8.0",
+    "@modelcontextprotocol/sdk": "^1.9.0",
    "diff": "^7.0.0",
    "eventsource": "^3.0.2",
    "express": "^4.21.2"
--- a/packages/mcp/rollup.config.js
+++ b/packages/mcp/rollup.config.js
@ -1,11 +1,11 @@
 // rollup.config.js
-import typescript from 'rollup-plugin-typescript2';
-import resolve from '@rollup/plugin-node-resolve';
-import peerDepsExternal from 'rollup-plugin-peer-deps-external';
-import commonjs from '@rollup/plugin-commonjs';
-import replace from '@rollup/plugin-replace';
-import terser from '@rollup/plugin-terser';
 import { readFileSync } from 'fs';
+import terser from '@rollup/plugin-terser';
+import replace from '@rollup/plugin-replace';
+import commonjs from '@rollup/plugin-commonjs';
+import resolve from '@rollup/plugin-node-resolve';
+import typescript from '@rollup/plugin-typescript';
+import peerDepsExternal from 'rollup-plugin-peer-deps-external';

 const pkg = JSON.parse(readFileSync(new URL('./package.json', import.meta.url), 'utf8'));

@ -24,16 +24,18 @@ const plugins = [
  }),
  typescript({
    tsconfig: './tsconfig.json',
-    useTsconfigDeclarationDir: true,
+    outDir: './dist',
+    sourceMap: true,
+    inlineSourceMap: true,
  }),
  terser(),
 ];

-const esmBuild = {
+const cjsBuild = {
  input: 'src/index.ts',
  output: {
-    file: pkg.module,
-    format: 'esm',
+    file: pkg.main,
+    format: 'cjs',
    sourcemap: true,
    exports: 'named',
  },
@ -42,4 +44,4 @@ const esmBuild = {
  plugins,
 };

-export default esmBuild;
+export default cjsBuild;
--- a/packages/mcp/src/types/mcp.ts
+++ b/packages/mcp/src/types/mcp.ts
@ -8,6 +8,7 @@ import {
 } from 'librechat-data-provider';
 import type { JsonSchemaType, TPlugin } from 'librechat-data-provider';
 import { ToolSchema, ListToolsResultSchema } from '@modelcontextprotocol/sdk/types.js';
+import type * as t from '@modelcontextprotocol/sdk/types.js';

 export type StdioOptions = z.infer<typeof StdioOptionsSchema>;
 export type WebSocketOptions = z.infer<typeof WebSocketOptionsSchema>;
@ -44,25 +45,7 @@ export type ConnectionState = 'disconnected' | 'connecting' | 'connected' | 'err

 export type MCPTool = z.infer<typeof ToolSchema>;
 export type MCPToolListResponse = z.infer<typeof ListToolsResultSchema>;
-export type ToolContentPart =
-  | {
-      type: 'text';
-      text: string;
-    }
-  | {
-      type: 'image';
-      data: string;
-      mimeType: string;
-    }
-  | {
-      type: 'resource';
-      resource: {
-        uri: string;
-        mimeType?: string;
-        text?: string;
-        blob?: string;
-      };
-    };
+export type ToolContentPart = t.TextContent | t.ImageContent | t.EmbeddedResource | t.AudioContent;
 export type ImageContent = Extract<ToolContentPart, { type: 'image' }>;
 export type MCPToolCallResponse =
  | undefined