fix: update @mcpc/core version to 0.2.5 and modify logger to always use console.error for logging

Author: yaonyan

deno.lock

@@ -12,7 +12,7 @@
     "./app": "./src/app.ts"
   },
   "imports": {
-    "@mcpc/core": "jsr:@mcpc/core@^0.2.4",
+    "@mcpc/core": "jsr:@mcpc/core@^0.2.5",
     "@mcpc/utils": "jsr:@mcpc/utils@^0.2.2",
     "@modelcontextprotocol/sdk": "npm:@modelcontextprotocol/sdk@^1.8.0",
     "@mcpc-tech/ripgrep-napi": "npm:@mcpc-tech/ripgrep-napi@^0.0.4",

packages/cli/deno.json

@@ -1,6 +1,6 @@
 {
   "name": "@mcpc/core",
-  "version": "0.2.4",
+  "version": "0.2.5",
   "repository": {
     "type": "git",
     "url": "git+https://github.com/mcpc-tech/mcpc.git"

packages/core/deno.json

@@ -74,17 +74,10 @@ export class MCPLogger {
 
   private logToConsole(level: LogLevel, data: unknown): void {
     const message = typeof data === "string" ? data : JSON.stringify(data);
-    const prefix = `[${this.loggerName}]`;
-
-    if (level === "debug") {
-      console.debug(prefix, message);
-    } else if (level === "info" || level === "notice") {
-      console.info(prefix, message);
-    } else if (level === "warning") {
-      console.warn(prefix, message);
-    } else {
-      console.error(prefix, message);
-    }
+    const prefix = `[${this.loggerName}:${level}]`;
+
+    // Always use console.error to avoid interfering with JSON-RPC on stdout in stdio mode
+    console.error(prefix, message);
   }
 
   debug(data: unknown): Promise<void> {

packages/core/src/utils/logger.ts

@@ -4,9 +4,9 @@ Deno.test(
   "Tool warning system - shows warning for non-existent tools",
   async () => {
     // Capture console output
-    const originalWarn = console.warn;
+    const originalError = console.error;
     const warnings: string[] = [];
-    console.warn = (...args: any[]) => {
+    console.error = (...args: any[]) => {
       warnings.push(args.join(" "));
     };
 
@@ -58,8 +58,8 @@ Deno.test(
 
       await server.close();
     } finally {
-      // Restore console.warn
-      console.warn = originalWarn;
+      // Restore console.error
+      console.error = originalError;
     }
   },
 );