Add --no-log argument to make it work with IntelliJ

IntelliJ fails to connect if output is sent to STDERR

Author: dimber-cais

README.md

@@ -226,6 +226,12 @@ As of version `0.48.0`, Cursor supports unauthed SSE servers directly. If your M
 
 [Official Docs](https://docs.codeium.com/windsurf/mcp). The configuration file is located at `~/.codeium/windsurf/mcp_config.json`.
 
+### JetBrains IntelliJ
+
+IntelliJ supports MCP servers however, you must disable logging (which this package does by default to STDERR). Do this
+by adding the `--no-log` argument.
+
+
 ## Building Remote MCP Servers
 
 For instructions on building & deploying remote MCP servers, including acting as a valid OAuth client, see the following resources:

src/client.ts

@@ -158,7 +158,7 @@ async function runClient(
 }
 
 // Parse command-line arguments and run the client
-parseCommandLineArgs(process.argv.slice(2), 'Usage: npx tsx client.ts <https://server-url> [callback-port] [--debug]')
+parseCommandLineArgs(process.argv.slice(2), 'Usage: npx tsx client.ts <https://server-url> [callback-port] [--debug] [-no-log]')
   .then(({ serverUrl, callbackPort, headers, transportStrategy, host, staticOAuthClientMetadata, staticOAuthClientInfo }) => {
     return runClient(serverUrl, callbackPort, headers, transportStrategy, host, staticOAuthClientMetadata, staticOAuthClientInfo)
   })

src/lib/utils.ts

@@ -32,6 +32,9 @@ const pid = process.pid
 // Global debug flag
 export let DEBUG = false
 
+// Global no-log flag
+export let NO_LOG = false
+
 // Helper function for timestamp formatting
 function getTimestamp(): string {
   const now = new Date()
@@ -71,6 +74,10 @@ export function debugLog(message: string, ...args: any[]) {
 }
 
 export function log(str: string, ...rest: unknown[]) {
+  if(NO_LOG) {
+    return
+  }
+
   // Using stderr so that it doesn't interfere with stdout
   console.error(`[${pid}] ${str}`, ...rest)