Update to ver 0.3.6

Author: hideya

CHANGELOG.md

@@ -5,6 +5,14 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
+
+## [0.3.6] - 2025-08-24
+
+### Added
+- "schema_transformations" flag to the config file to check the effect of
+  the transformations.
+
+
 ## [0.3.5] - 2025-08-23
 
 ### Added

README.md

@@ -101,7 +101,8 @@ See [README_DEV.md](https://github.com/hideya/mcp-client-langchain-ts/blob/main/
 - **Multiple LLM providers**: OpenAI, Anthropic, Google (GenAI)
 - **Schema Compatibility Support**: Automatically adjusts tools schema for LLM compatibility, which can help some failing MCP servers run successfully. 
   See [this page](https://github.com/hideya/langchain-mcp-tools-ts/blob/main/README.md#llm-provider-schema-compatibility)
-for details.
+for details.  
+If you want to disable the schema trnaformations, add `"schema_transformations": false,` to the top level of the config file.
 - **Command & URL servers**: Support for both local and remote MCP servers
 - **Real-time logging**: Live stdio MCP server logs with customizable log directory
 - **Interactive testing**: Example queries for the convenience of repeated testing
@@ -243,6 +244,12 @@ Create a `llm_mcp_config.json5` file:
       "headers": {
         "Authorization": "Bearer ${GITHUB_PERSONAL_ACCESS_TOKEN}"
       }
+    },
+
+    // To connect a remote MCP server with OAuth, use "mcp-remote"
+    "notionMCP": {
+      "command": "npx",
+      "args": ["-y", "mcp-remote", "https://mcp.notion.com/mcp"],
     }
   }
 }

llm_mcp_config.json5

@@ -5,6 +5,8 @@
 // Keep all the credentials and private into the `.env` file
 // and refer to them with `${...}` notation as needed.
 {
+    // "schema_transformations": false,
+
     // "llm": {
     //     // https://docs.anthropic.com/en/docs/about-claude/pricing
     //     // https://console.anthropic.com/settings/billing
@@ -19,8 +21,8 @@
     //     // https://platform.openai.com/docs/pricing
     //     // https://platform.openai.com/settings/organization/billing/overview
     //     "provider": "openai",
-    //     "model": "gpt-4.1-nano",
-    //     // "model": "gpt-5-mini",
+    //     // "model": "gpt-4.1-nano",
+    //     "model": "gpt-5-mini",
     //     // "temperature": 0.0,  //  'temperature' is not supported with "o4-mini"
     //     // "max_completion_tokens": 10000,  //  Use 'max_completion_tokens' instead of 'max_tokens'
     // },
@@ -61,6 +63,7 @@
         "Are there any weather alerts in California?",
         // "What's the news from Tokyo today?",
         // "Open the webpage at bbc.com",
+        // "Tell me how many github repositories I have?"
         // "Tell me about my Notion account",
     ],
 
@@ -118,8 +121,6 @@
         //     "Authorization": "Bearer ${GITHUB_PERSONAL_ACCESS_TOKEN}"
         //   }
         // },
-        // // NOTE: When accessing the GitHub MCP server, [GitHub PAT (Personal Access Token)](https://github.com/settings/personal-access-tokens)
-        // // alone is not enough; your GitHub account must have an active Copilot subscription or be assigned a Copilot license through your organization.
 
         // // https://github.com/microsoft/playwright-mcp
         // "playwright": {
@@ -134,15 +135,23 @@
         //     "env": { "BRAVE_API_KEY": "${BRAVE_API_KEY}" }
         // },
 
-        // notion: {
-        //   "command": "npx",
-        //   "args": ["-y", "@notionhq/notion-mcp-server"],
-        //   "env": {
-        //     // Although the following implies that this MCP server is designed for
-        //     // OpenAI LLMs, it works fine with others models.
-        //     // Tested with Claude and Gemini (with schema adjustments).
-        //     "OPENAPI_MCP_HEADERS": '{"Authorization": "Bearer ${NOTION_INTEGRATION_SECRET}", "Notion-Version": "2022-06-28"}'
-        //   },
+        // The following Notion local MCP server is not recommended anymore?
+        // Refs:
+        // - https://developers.notion.com/docs/get-started-with-mcp
+        // - https://www.npmjs.com/package/@notionhq/notion-mcp-server
+        // 
+        // "notionApi": {
+        //     "command": "npx",
+        //     "args": ["-y", "@notionhq/notion-mcp-server"],
+        //     "env": {
+        //         "NOTION_TOKEN": "${NOTION_INTEGRATION_SECRET}"
+        //     }
         // },
+
+        // Run Notion remote MCP server via mcp-remote
+        // "notionMCP": {
+        //     "command": "npx",
+        //     "args": ["-y", "mcp-remote", "https://mcp.notion.com/mcp"],
+        // }
     }
 }

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "@h1deya/mcp-client-cli",
-  "version": "0.3.5",
+  "version": "0.3.6",
   "description": "Simple MCP Client to quickly test and explore MCP servers from the command line",
   "license": "MIT",
   "keywords": [
@@ -52,7 +52,7 @@
     "publish:do": "npm run publish:prepare && npm publish --access=public"
   },
   "dependencies": {
-    "@h1deya/langchain-mcp-tools": "^0.3.5",
+    "@h1deya/langchain-mcp-tools": "^0.3.6",
     "@langchain/anthropic": "^0.3.11",
     "@langchain/cerebras": "^0.0.3",
     "@langchain/core": "^0.3.61",

package.json

@@ -160,7 +160,6 @@ function addLogFileWatcher(logPath: string, serverName: string) {
 
   const watcher = fs.watch(logPath, (eventType: string, filename: unknown) => {
     if (eventType === 'change') {
-      // console.log(`*** file updated: "${filename}"`);
       const stats = fs.statSync(logPath);
       const currentSize = stats.size;
       if (currentSize > lastSize) {
@@ -181,11 +180,11 @@ function addLogFileWatcher(logPath: string, serverName: string) {
 
 // Application initialization
 async function initializeReactAgent(config: Config, verbose: boolean, logDir: string) {
-  const llmProvider = config.llm.provider as LlmProvider;
+  const llmApiProvider = config.llm.provider as LlmProvider;
 
   console.log("Initializing model...", config.llm, "\n");
   const llmConfig = {
-    modelProvider: llmProvider,
+    modelProvider: llmApiProvider,
     model: config.llm.model,
     temperature: config.llm.temperature,
     maxTokens: config.llm.max_tokens,
@@ -213,6 +212,14 @@ async function initializeReactAgent(config: Config, verbose: boolean, logDir: st
     }
   });
 
+  const schemaTransformations = 
+    (config.schema_transformations === undefined) || config.schema_transformations;
+
+  const llmProvider = schemaTransformations && (llmApiProvider === "openai" || 
+    llmApiProvider === "google_gemini" ||  llmApiProvider === "google_genai" ||
+    llmApiProvider === "anthropic" ||  llmApiProvider === "xai")
+    ? llmApiProvider : "none" as LlmProvider;
+
   const toolsAndCleanup = await convertMcpToLangchainTools(
     config.mcp_servers,
     { llmProvider, logLevel: verbose ? "debug" : "info" }

src/index.ts

@@ -39,6 +39,7 @@ export interface Config {
   mcp_servers: {
     [key: string]: MCPServerConfig;
   }
+  schema_transformations?: boolean; 
 }
 
 export function loadConfig(path: string): Config {
@@ -61,6 +62,7 @@ export function loadConfig(path: string): Config {
       delete config.llm.model_provider;
     }
     console.log(config);
+    console.log(config.schema_transformations);
 
     // Validate required fields
     validateConfig(config);
@@ -107,6 +109,12 @@ function validateConfig(config: unknown): asserts config is Config {
       throw new Error(`Invalid configuration for MCP server "${key}": ${error instanceof Error ? error.message : String(error)}`);
     }
   });
+
+  if ("schema_transformations" in config) {
+    if (typeof config.schema_transformations !== "boolean") {
+      throw new Error("schema_transformations must be a boolean if provided");
+    }
+  }
 }
 
 function validateLLMConfig(llmConfig: unknown): asserts llmConfig is LLMConfig {