diff --git a/backend/main.py b/backend/main.py
index 76339a0..730665f 100644
--- a/backend/main.py
+++ b/backend/main.py
@@ -40,11 +40,34 @@ app.add_middleware(
 
 AVATAR_COLORS = ['#1D9E75','#378ADD','#D85A30','#EF9F27','#7F77DD','#D4537E','#639922','#888780']
 
+@app.on_event("startup")
+async def startup_event():
+    """Run migrations and initialization on startup."""
+    init_db()
+
 def init_db():
     """Initialize database - Schema is loaded by startup.sh"""
     # Schema loading and migration handled by startup.sh
     # This function kept for backwards compatibility
-    pass
+
+    # Ensure "pipeline" master prompt exists
+    with get_db() as conn:
+        cur = get_cursor(conn)
+        cur.execute("SELECT COUNT(*) as count FROM ai_prompts WHERE slug='pipeline'")
+        if cur.fetchone()['count'] == 0:
+            cur.execute("""
+                INSERT INTO ai_prompts (slug, name, description, template, active, sort_order)
+                VALUES (
+                    'pipeline',
+                    'Mehrstufige Gesamtanalyse',
+                    'Master-Schalter für die gesamte Pipeline. Deaktiviere diese Analyse, um die Pipeline komplett zu verstecken.',
+                    'PIPELINE_MASTER',
+                    true,
+                    -10
+                )
+            """)
+            conn.commit()
+            print("✓ Pipeline master prompt created")
 
 # ── Helper: get profile_id from header ───────────────────────────────────────
 def get_pid(x_profile_id: Optional[str] = Header(default=None)) -> str:
diff --git a/frontend/src/pages/Analysis.jsx b/frontend/src/pages/Analysis.jsx
index 4c55d33..630bc1b 100644
--- a/frontend/src/pages/Analysis.jsx
+++ b/frontend/src/pages/Analysis.jsx
@@ -179,9 +179,9 @@ export default function Analysis() {
 
   const activePrompts = prompts.filter(p=>p.active && !p.slug.startsWith('pipeline_'))
 
-  // Pipeline is available only if ALL pipeline sub-prompts are active
-  const pipelineSlugs = ['pipeline_body','pipeline_nutrition','pipeline_activity','pipeline_synthesis','pipeline_goals']
-  const pipelineAvailable = pipelineSlugs.every(slug => prompts.find(p=>p.slug===slug)?.active)
+  // Pipeline is available if the "pipeline" prompt is active
+  const pipelinePrompt = prompts.find(p=>p.slug==='pipeline')
+  const pipelineAvailable = pipelinePrompt?.active ?? true  // Default to true if not found (backwards compatibility)
 
   return (
     <div>
@@ -386,15 +386,47 @@ export default function Analysis() {
                 ))}
 
                 {/* Pipeline prompts */}
-                <div style={{fontSize:12,fontWeight:700,color:'var(--text3)',
-                  textTransform:'uppercase',letterSpacing:'0.05em',margin:'20px 0 8px'}}>
-                  Mehrstufige Pipeline
-                </div>
-                <div style={{padding:'10px 12px',background:'var(--warn-bg)',borderRadius:8,
-                  fontSize:12,color:'var(--warn-text)',marginBottom:12,lineHeight:1.6}}>
-                  ⚠️ <strong>Hinweis:</strong> Pipeline-Stage-1-Prompts müssen valides JSON zurückgeben.
-                  Halte das JSON-Format im Prompt erhalten. Stage 2 + 3 können frei angepasst werden.
+                <div style={{display:'flex',alignItems:'center',justifyContent:'space-between',margin:'20px 0 8px'}}>
+                  <div style={{fontSize:12,fontWeight:700,color:'var(--text3)',
+                    textTransform:'uppercase',letterSpacing:'0.05em'}}>
+                    Mehrstufige Pipeline
+                  </div>
+                  {(() => {
+                    const pipelinePrompt = prompts.find(p=>p.slug==='pipeline')
+                    return pipelinePrompt && (
+                      <button className="btn btn-secondary" style={{padding:'5px 12px',fontSize:12}}
+                        onClick={()=>{
+                          const token = localStorage.getItem('bodytrack_token')||''
+                          fetch(`/api/prompts/${pipelinePrompt.id}`,{
+                            method:'PUT',
+                            headers:{'Content-Type':'application/json','X-Auth-Token':token},
+                            body:JSON.stringify({active:!pipelinePrompt.active})
+                          }).then(loadAll)
+                        }}>
+                        {pipelinePrompt.active ? 'Gesamte Pipeline deaktivieren' : 'Gesamte Pipeline aktivieren'}
+                      </button>
+                    )
+                  })()}
                 </div>
+                {(() => {
+                  const pipelinePrompt = prompts.find(p=>p.slug==='pipeline')
+                  const isPipelineActive = pipelinePrompt?.active ?? true
+                  return (
+                    <div style={{padding:'10px 12px',
+                      background: isPipelineActive ? 'var(--warn-bg)' : '#FCEBEB',
+                      borderRadius:8,fontSize:12,
+                      color: isPipelineActive ? 'var(--warn-text)' : '#D85A30',
+                      marginBottom:12,lineHeight:1.6}}>
+                      {isPipelineActive ? (
+                        <>⚠️ <strong>Hinweis:</strong> Pipeline-Stage-1-Prompts müssen valides JSON zurückgeben.
+                        Halte das JSON-Format im Prompt erhalten. Stage 2 + 3 können frei angepasst werden.</>
+                      ) : (
+                        <>⏸ <strong>Pipeline deaktiviert:</strong> Die mehrstufige Gesamtanalyse ist aktuell nicht verfügbar.
+                        Aktiviere sie mit dem Schalter oben, um sie auf der Analyse-Seite zu nutzen.</>
+                      )}
+                    </div>
+                  )
+                })()}
                 {pipelinePrompts.map(p=>{
                   const isJson = jsonSlugs.includes(p.slug)
                   return (