@agent360/browser-mcp - npm Package Compare versions

Comparing version 1.19.0 to 1.20.0

extension/manifest.json

 {
   "manifest_version": 3,
   "name": "Agent360 Browser MCP",
-  "version": "1.19.0",
+  "version": "1.20.0",
   "description": "Control your real Chrome from Claude Code — navigate, click, fill, set dates, dismiss overlays, autocomplete, upload, screenshot, solve CAPTCHAs. 33 tools, multi-session, human-in-the-loop.",
@@ -6,0 +6,0 @@ "permissions": [

index.js

@@ -64,2 +64,6 @@ #!/usr/bin/env node
 
+// Timers hoisted to module scope so gracefulShutdown can clear them deterministically.
+let heartbeat = null;
+let parentCheck = null;
+
 // ── WebSocket Server ───────────────────────────────────────────────────────
@@ -102,4 +106,4 @@
       if (msg.type === 'terminate') {
-        process.stderr.write('[MCP] Terminate signal received from extension (last tab closed) — exiting\n');
-        process.exit(0);
+        gracefulShutdown('Terminate signal from extension (last tab closed)');
+        return;
       }
@@ -129,4 +133,4 @@
 
-  // Heartbeat + idle timeout (4 hours)
-  setInterval(() => {
+  // Heartbeat + idle timeout (4 hours) — hoisted to module scope so gracefulShutdown can clear it
+  heartbeat = setInterval(() => {
     if (extensionSocket && extensionSocket.readyState === 1) {
@@ -136,4 +140,3 @@ extensionSocket.ping();
     if (Date.now() - lastActivity > 4 * 60 * 60 * 1000) {
-      process.stderr.write('[MCP] Idle timeout (4h) — shutting down\n');
-      process.exit(0);
+      gracefulShutdown('Idle timeout (4h)');
     }
@@ -369,8 +372,31 @@ }, 20000);
 
-// ── Start ───────────────────────────────────────────────────────────────────
+// ── Graceful shutdown ──────────────────────────────────────────────────────
+// All shutdown paths funnel through gracefulShutdown so the cleanup chain runs
+// deterministically — even on abrupt parent-exit. Without this, process.exit(0)
+// was racing against WS close-handshake, leaving zombie tabs in Chrome.
 
-// Clean shutdown — release port so next session can use it
-process.on('SIGTERM', () => process.exit(0));
-process.on('SIGINT', () => process.exit(0));
+let shuttingDown = false;
+function gracefulShutdown(reason, code = 0) {
+  if (shuttingDown) return;
+  shuttingDown = true;
+  process.stderr.write(`[MCP] ${reason} — shutting down\n`);
+
+  // Stop timers so they can't re-enter gracefulShutdown
+  if (parentCheck) clearInterval(parentCheck);
+  if (heartbeat) clearInterval(heartbeat);
+
+  // Close WS with explicit close-frame so extension's onclose handler fires
+  if (extensionSocket && extensionSocket.readyState === 1) {
+    try { extensionSocket.close(1000, 'mcp-shutdown'); } catch {}
+  }
+  if (wss) try { wss.close(); } catch {}
+
+  // 300ms grace for FIN-flush + extension session_disconnect cleanup
+  setTimeout(() => process.exit(code), 300);
+}
+
+process.on('SIGTERM', () => gracefulShutdown('SIGTERM'));
+process.on('SIGINT', () => gracefulShutdown('SIGINT'));
 process.on('exit', () => {
+  // Safety net for direct process.exit calls that bypass gracefulShutdown
   if (wss) try { wss.close(); } catch {}
@@ -383,9 +409,7 @@ if (extensionSocket) try { extensionSocket.close(); } catch {}
 const parentPid = process.ppid;
-const parentCheck = setInterval(() => {
+parentCheck = setInterval(() => {
   try {
     process.kill(parentPid, 0); // signal 0 = check if process exists
   } catch {
-    process.stderr.write(`[MCP] Parent process ${parentPid} died — shutting down\n`);
-    clearInterval(parentCheck);
-    process.exit(0);
+    gracefulShutdown(`Parent process ${parentPid} died`);
   }
@@ -395,6 +419,3 @@ }, 5000); // check every 5 seconds
 // Also listen for stdin close as backup
-process.stdin.on('end', () => {
-  process.stderr.write('[MCP] stdin closed — shutting down\n');
-  process.exit(0);
-});
+process.stdin.on('end', () => gracefulShutdown('stdin closed'));
 
@@ -401,0 +422,0 @@ const transport = new StdioServerTransport();

package.json

 {
   "name": "@agent360/browser-mcp",
-  "version": "1.19.0",
-  "description": "Browser MCP — control your real Chrome from Claude Code. 29 tools, CAPTCHA solving, file upload, multi-session, human-in-the-loop.",
+  "version": "1.20.0",
+  "description": "Browser MCP — control your real Chrome from Claude Code. 33 tools, CAPTCHA solving, date pickers, autocomplete combobox, overlay dismissal, file upload, multi-session, human-in-the-loop.",
   "mcpName": "io.github.Agent360dk/browser-mcp",
@@ -6,0 +6,0 @@ "type": "module",

New alerts

AI-detected potential code anomaly

Supply chain risk

AI has identified unusual behaviors that may pose a security risk.

Found 2 instances

URL strings

Supply chain risk

Package contains fragments of external URLs or IP addresses, which the package may be accessing at runtime.

Fixed alerts

AI-detected potential code anomaly

Supply chain risk

AI has identified unusual behaviors that may pose a security risk.

Found 2 instances

URL strings

Supply chain risk

Package contains fragments of external URLs or IP addresses, which the package may be accessing at runtime.

Improved metrics

Total package byte prevSize

187200

0.52%

Lines of code

3531

0.46%

No dependency changes