diff --git a/scripts/claude-bridge.js b/scripts/claude-bridge.js
index 32dfee2..a788444 100644
--- a/scripts/claude-bridge.js
+++ b/scripts/claude-bridge.js
@@ -1089,16 +1089,39 @@ process.on('SIGINT', () => { clearInterval(keepAlive); cleanupDaemon(); process.
 process.on('exit', () => { cleanupDaemon(); });
 
 // Globale Fehler-Handler — Bridge darf nicht still abstürzen
+// WICHTIG: err.stack ist ein lazy Getter der bei jedem Zugriff neu formatiert wird
+// und bei V8-OOM selbst einen OOM-Abort auslösen kann. Daher: einmal lesen, kürzen,
+// try/catch drumrum — der Handler darf nicht selbst crashen.
+function safeStack(err) {
+  try {
+    const raw = (err && err.stack) ? String(err.stack) : '';
+    return raw.length > 2000 ? raw.slice(0, 2000) + '\n...[gekürzt]' : raw;
+  } catch {
+    return '[stack nicht lesbar]';
+  }
+}
 process.on('uncaughtException', (err) => {
-  process.stderr.write(`❌ Unbehandelter Fehler: ${err.message}\n${err.stack}\n`);
-  sendEvent('bridge-error', { type: 'uncaughtException', message: err.message, stack: err.stack });
-  sendMonitorEvent('error', `Bridge Crash: ${err.message}`, { stack: err.stack });
+  try {
+    const msg = (err && err.message) ? String(err.message).slice(0, 500) : String(err).slice(0, 500);
+    const stack = safeStack(err);
+    process.stderr.write(`❌ Unbehandelter Fehler: ${msg}\n${stack}\n`);
+    sendEvent('bridge-error', { type: 'uncaughtException', message: msg, stack });
+    sendMonitorEvent('error', `Bridge Crash: ${msg}`, {});
+  } catch (inner) {
+    try { process.stderr.write(`❌ Handler-Fehler: ${inner && inner.message}\n`); } catch {}
+  }
 });
 process.on('unhandledRejection', (reason) => {
-  const msg = reason instanceof Error ? reason.message : String(reason);
-  process.stderr.write(`❌ Unhandled Promise Rejection: ${msg}\n`);
-  sendEvent('bridge-error', { type: 'unhandledRejection', message: msg });
-  sendMonitorEvent('error', `Unhandled Rejection: ${msg}`, {});
+  try {
+    const msg = reason instanceof Error
+      ? String(reason.message).slice(0, 500)
+      : String(reason).slice(0, 500);
+    process.stderr.write(`❌ Unhandled Promise Rejection: ${msg}\n`);
+    sendEvent('bridge-error', { type: 'unhandledRejection', message: msg });
+    sendMonitorEvent('error', `Unhandled Rejection: ${msg}`, {});
+  } catch (inner) {
+    try { process.stderr.write(`❌ Handler-Fehler: ${inner && inner.message}\n`); } catch {}
+  }
 });
 
 // Bereit-Signal (im stdio-Modus sofort senden, im Daemon-Modus pro Client bei Connect)
diff --git a/src-tauri/src/claude.rs b/src-tauri/src/claude.rs
index 82ec8ba..48351c2 100644
--- a/src-tauri/src/claude.rs
+++ b/src-tauri/src/claude.rs
@@ -173,7 +173,10 @@ fn start_daemon(script_path: &std::path::Path) -> Result<u32, String> {
 
     println!("🔌 Starte Bridge-Daemon: {:?} --socket {}", script_path, SOCKET_PATH);
 
+    // --max-old-space-size=4096: Node-Default (~2GB) reicht nicht bei langen Sessions
+    // mit großen Thinking-Blocks/Agent-SDK-History (KB #crash-oom-stacktrace).
     let child = Command::new("node")
+        .arg("--max-old-space-size=4096")
         .arg(script_path)
         .arg("--socket")
         .arg(SOCKET_PATH)
@@ -328,6 +331,7 @@ fn start_bridge_stdio(app: &AppHandle, script_path: &std::path::Path) -> Result<
     println!("📂 Bridge Arbeitsverzeichnis: {:?}", project_dir);
 
     let mut child = Command::new("node")
+        .arg("--max-old-space-size=4096")
         .arg(script_path)
         .current_dir(project_dir)
         .stdin(Stdio::piped())