diff --git a/backend/routers/prompts.py b/backend/routers/prompts.py
index cc90c5c..5e7d76f 100644
--- a/backend/routers/prompts.py
+++ b/backend/routers/prompts.py
@@ -31,6 +31,42 @@ OPENROUTER_MODEL = os.getenv("OPENROUTER_MODEL", "anthropic/claude-sonnet-4")
 
 router = APIRouter(prefix="/api/prompts", tags=["prompts"])
 
+# Metadaten-Schlüssel in workflow aggregate_results (nicht als „einziger“ Nutzer-Output)
+_WORKFLOW_AGG_META_KEYS = frozenset({
+    "combined_analysis",
+    "all_signals",
+    "total_nodes",
+    "executed_nodes",
+    "failed_nodes",
+    "skipped_nodes",
+})
+
+
+def _workflow_user_facing_content(agg: object) -> str:
+    """
+    Nutzer-sichtbarer Text wie im Admin WorkflowResultViewer („Final Output“):
+    primär aggregated_result['analysis_core'], nicht das gesamte JSON.
+    """
+    if agg is None:
+        return ""
+    if isinstance(agg, str):
+        return agg
+    if not isinstance(agg, dict):
+        return json.dumps(agg, ensure_ascii=False)
+    core = agg.get("analysis_core")
+    if isinstance(core, str) and core.strip():
+        return core
+    combined = agg.get("combined_analysis")
+    if isinstance(combined, str) and combined.strip():
+        return combined
+    non_meta = [k for k in agg.keys() if k not in _WORKFLOW_AGG_META_KEYS]
+    if len(non_meta) == 1:
+        v = agg[non_meta[0]]
+        if isinstance(v, str):
+            return v
+        return json.dumps(v, ensure_ascii=False)
+    return json.dumps(agg, ensure_ascii=False)
+
 
 @router.get("")
 def list_prompts(session: dict=Depends(require_auth)):
@@ -1254,17 +1290,7 @@ async def execute_unified_prompt(
             else:
                 content = json.dumps(final_output, ensure_ascii=False)
         elif result['type'] == 'workflow':
-            # Graph-Workflows: kein "output", sondern aggregated_result
-            agg = result.get('aggregated_result')
-            if isinstance(agg, dict) and len(agg) == 1:
-                v = list(agg.values())[0]
-                content = v if isinstance(v, str) else json.dumps(v, ensure_ascii=False)
-            elif agg is None:
-                content = ''
-            elif isinstance(agg, str):
-                content = agg
-            else:
-                content = json.dumps(agg, ensure_ascii=False)
+            content = _workflow_user_facing_content(result.get('aggregated_result'))
         else:
             # For base prompts, use output directly
             content = result.get('output', '')
diff --git a/frontend/src/pages/Analysis.jsx b/frontend/src/pages/Analysis.jsx
index cea6271..c8f8317 100644
--- a/frontend/src/pages/Analysis.jsx
+++ b/frontend/src/pages/Analysis.jsx
@@ -2,6 +2,7 @@ import React, { useState, useEffect, useMemo } from 'react'
 import { Brain, Trash2, ChevronDown, ChevronUp } from 'lucide-react'
 import { Link } from 'react-router-dom'
 import { api } from '../utils/api'
+import { getWorkflowDisplayContent } from '../utils/workflowDisplay'
 import { useAuth } from '../context/AuthContext'
 import Markdown from '../utils/Markdown'
 import UsageBadge from '../components/UsageBadge'
@@ -400,15 +401,7 @@ export default function Analysis() {
           content = JSON.stringify(finalOutput, null, 2)
         }
       } else if (result.type === 'workflow') {
-        const agg = result.aggregated_result
-        if (agg != null && typeof agg === 'object' && !Array.isArray(agg) && Object.keys(agg).length === 1) {
-          const v = Object.values(agg)[0]
-          content = typeof v === 'string' ? v : JSON.stringify(v, null, 2)
-        } else if (typeof agg === 'string') {
-          content = agg
-        } else {
-          content = JSON.stringify(agg ?? {}, null, 2)
-        }
+        content = getWorkflowDisplayContent(result.aggregated_result)
       } else {
         // For base prompts, use output directly
         content = typeof result.output === 'string' ? result.output : JSON.stringify(result.output, null, 2)
diff --git a/frontend/src/utils/workflowDisplay.js b/frontend/src/utils/workflowDisplay.js
new file mode 100644
index 0000000..ff971ca
--- /dev/null
+++ b/frontend/src/utils/workflowDisplay.js
@@ -0,0 +1,37 @@
+/**
+ * Nutzer-sichtbare Textausgabe eines Workflow-Laufs – gleiche Logik wie
+ * WorkflowResultViewer („Final Output“): primär aggregated_result.analysis_core.
+ */
+const AGG_META_KEYS = new Set([
+  'combined_analysis',
+  'all_signals',
+  'total_nodes',
+  'executed_nodes',
+  'failed_nodes',
+  'skipped_nodes',
+])
+
+export function getWorkflowDisplayContent(aggregatedResult) {
+  if (aggregatedResult == null) return ''
+  if (typeof aggregatedResult !== 'object' || Array.isArray(aggregatedResult)) {
+    return typeof aggregatedResult === 'string'
+      ? aggregatedResult
+      : JSON.stringify(aggregatedResult, null, 2)
+  }
+
+  const core = aggregatedResult.analysis_core
+  if (typeof core === 'string' && core.trim() !== '') return core
+
+  const combined = aggregatedResult.combined_analysis
+  if (typeof combined === 'string' && combined.trim() !== '') return combined
+
+  const keys = Object.keys(aggregatedResult).filter((k) => !AGG_META_KEYS.has(k))
+  if (keys.length === 1) {
+    const v = aggregatedResult[keys[0]]
+    if (typeof v === 'string') return v
+    if (v != null && typeof v === 'object') return JSON.stringify(v, null, 2)
+    return String(v)
+  }
+
+  return JSON.stringify(aggregatedResult, null, 2)
+}