diff --git a/visual_workflow_builder/frontend_v4/src/App.tsx b/visual_workflow_builder/frontend_v4/src/App.tsx
index c39e92d32..e74d9678b 100644
--- a/visual_workflow_builder/frontend_v4/src/App.tsx
+++ b/visual_workflow_builder/frontend_v4/src/App.tsx
@@ -1,13 +1,15 @@
-import { useState, useEffect, useCallback } from 'react';
+import { useState, useEffect, useCallback, useRef } from 'react';
 import {
   ReactFlow,
   Controls,
   Background,
   useNodesState,
   useEdgesState,
+  useReactFlow,
+  addEdge,
   ReactFlowProvider,
 } from '@xyflow/react';
-import type { Node, Edge, NodeTypes } from '@xyflow/react';
+import type { Node, Edge, NodeTypes, Connection } from '@xyflow/react';
 import '@xyflow/react/dist/style.css';
 
 import * as api from './services/api';
@@ -27,6 +29,7 @@ import type { Variable } from './components/VariableManager';
 import CaptureLibrary from './components/CaptureLibrary';
 import SelfHealingDialog from './components/SelfHealingDialog';
 import ConfidenceDashboard from './components/ConfidenceDashboard';
+import WorkflowValidation from './components/WorkflowValidation';
 
 const nodeTypes: NodeTypes = {
   step: StepNode,
@@ -43,9 +46,16 @@ function App() {
   const [isExecutionRunning, setIsExecutionRunning] = useState(false);
   const [detectionZone, setDetectionZone] = useState<{x: number; y: number; width: number; height: number} | null>(null);
   const [variables, setVariables] = useState<Variable[]>([]);
+  const [runtimeVariables, setRuntimeVariables] = useState<Record<string, unknown>>({});
   const [showWorkflowManager, setShowWorkflowManager] = useState(false);
   const [currentCapture, setCurrentCapture] = useState<Capture | null>(null);
 
+  // React Flow instance pour screenToFlowPosition
+  const reactFlowInstance = useReactFlow();
+
+  // Tracker le workflow chargé pour ne pas écraser les edges manuelles
+  const loadedWorkflowIdRef = useRef<string | null>(null);
+
   // Self-healing interactif
   const [showSelfHealing, setShowSelfHealing] = useState(false);
   const [healingCandidates, setHealingCandidates] = useState<any[]>([]);
@@ -56,7 +66,10 @@ function App() {
     try {
       const state = await api.getState();
       setAppState(state);
-      updateNodesFromWorkflow(state.workflow?.steps || []);
+      updateNodesFromWorkflow(
+        state.workflow?.steps || [],
+        state.workflow?.id
+      );
     } catch (err) {
       setError((err as Error).message);
     }
@@ -75,6 +88,11 @@ function App() {
         const status = await api.getExecutionStatus();
         setIsExecutionRunning(status.is_running);
 
+        // Extraire les variables runtime du status d'exécution
+        if (status.variables && typeof status.variables === 'object') {
+          setRuntimeVariables(status.variables as Record<string, unknown>);
+        }
+
         // Self-healing interactif: detecter si on attend un choix utilisateur
         if (status.waiting_for_choice && status.candidates) {
           setHealingCandidates(status.candidates);
@@ -100,7 +118,9 @@ function App() {
   }, [isExecutionRunning, loadState]);
 
   // Convertir les étapes en nœuds React Flow
-  const updateNodesFromWorkflow = (steps: Step[]) => {
+  // Les edges ne sont générées automatiquement que lors du premier chargement
+  // d'un workflow. Ensuite, les connexions manuelles de l'utilisateur sont préservées.
+  const updateNodesFromWorkflow = (steps: Step[], workflowId?: string) => {
     const newNodes: Node[] = steps.map((step, index) => ({
       id: step.id,
       type: 'step',
@@ -108,22 +128,29 @@ function App() {
       data: { step },
     }));
 
-    const newEdges: Edge[] = [];
-    for (let i = 0; i < steps.length - 1; i++) {
-      newEdges.push({
-        id: `e-${steps[i].id}-${steps[i + 1].id}`,
-        source: steps[i].id,
-        sourceHandle: 'bottom',
-        target: steps[i + 1].id,
-        targetHandle: 'top',
-        type: 'smoothstep',
-        animated: false,
-        style: { strokeWidth: 2 },
-      });
-    }
-
     setNodes(newNodes);
-    setEdges(newEdges);
+
+    // Ne régénérer les edges QUE si on charge un workflow différent
+    const isNewWorkflow = workflowId && workflowId !== loadedWorkflowIdRef.current;
+    if (isNewWorkflow) {
+      loadedWorkflowIdRef.current = workflowId;
+
+      const newEdges: Edge[] = [];
+      for (let i = 0; i < steps.length - 1; i++) {
+        newEdges.push({
+          id: `e-${steps[i].id}-${steps[i + 1].id}`,
+          source: steps[i].id,
+          sourceHandle: 'bottom',
+          target: steps[i + 1].id,
+          targetHandle: 'top',
+          type: 'smoothstep',
+          animated: false,
+          style: { strokeWidth: 2 },
+        });
+      }
+      setEdges(newEdges);
+    }
+    // Sinon : les edges existantes sont conservées (connexions manuelles préservées)
   };
 
   // Actions
@@ -316,22 +343,48 @@ function App() {
     }
   };
 
-  // Drop d'un outil sur le canvas
+  // Connexion entre deux nœuds (drag d'un handle à un autre)
+  const onConnect = useCallback(
+    (connection: Connection) => {
+      setEdges((eds) =>
+        addEdge(
+          {
+            ...connection,
+            type: 'smoothstep',
+            animated: false,
+            style: { strokeWidth: 2 },
+          },
+          eds
+        )
+      );
+    },
+    [setEdges]
+  );
+
+  // Suppression d'edges (touche Suppr/Backspace)
+  const onEdgesDelete = useCallback(
+    (deletedEdges: Edge[]) => {
+      console.log(`🗑️ ${deletedEdges.length} liaison(s) supprimée(s)`);
+    },
+    []
+  );
+
+  // Drop d'un outil sur le canvas (position corrigée avec zoom/pan)
   const onDrop = useCallback(
     (event: React.DragEvent) => {
       event.preventDefault();
       const actionType = event.dataTransfer.getData('actionType') as ActionType;
       if (!actionType) return;
 
-      const reactFlowBounds = event.currentTarget.getBoundingClientRect();
-      const position = {
-        x: event.clientX - reactFlowBounds.left,
-        y: event.clientY - reactFlowBounds.top,
-      };
+      // Utiliser screenToFlowPosition pour tenir compte du zoom et du pan
+      const position = reactFlowInstance.screenToFlowPosition({
+        x: event.clientX,
+        y: event.clientY,
+      });
 
       handleAddStep(actionType, position);
     },
-    [appState]
+    [appState, reactFlowInstance]
   );
 
   const onDragOver = useCallback((event: React.DragEvent) => {
@@ -356,6 +409,9 @@ function App() {
           onOpenManager={() => setShowWorkflowManager(true)}
           onRename={handleRenameWorkflow}
         />
+        <WorkflowValidation
+          workflowId={appState?.session.active_workflow_id}
+        />
         <ExecutionModeToggle
           mode={executionMode}
           onChange={setExecutionMode}
@@ -365,6 +421,10 @@ function App() {
           onStart={handleStartExecution}
           onStop={handleStopExecution}
         />
+        <ConfidenceDashboard
+          isExecutionRunning={isExecutionRunning}
+          executionMode={executionMode}
+        />
       </header>
 
       {/* Erreur */}
@@ -389,9 +449,12 @@ function App() {
               edges={edges}
               onNodesChange={onNodesChange}
               onEdgesChange={onEdgesChange}
+              onConnect={onConnect}
+              onEdgesDelete={onEdgesDelete}
               onNodeClick={(_, node) => handleSelectStep(node.id)}
               onNodeDragStop={handleNodeDragStop}
               nodeTypes={nodeTypes}
+              deleteKeyCode="Delete"
               fitView
             >
               <Controls />
@@ -430,6 +493,8 @@ function App() {
             onVariableCreate={handleVariableCreate}
             onVariableUpdate={handleVariableUpdate}
             onVariableDelete={handleVariableDelete}
+            steps={appState?.workflow?.steps || []}
+            runtimeVariables={runtimeVariables}
           />
         </aside>
       </div>
@@ -473,11 +538,7 @@ function App() {
         }}
       />
 
-      {/* Confidence Dashboard - scores en temps reel */}
-      <ConfidenceDashboard
-        isExecutionRunning={isExecutionRunning}
-        executionMode={executionMode}
-      />
+      {/* ConfidenceDashboard déplacé dans le header */}
     </div>
   );
 }
diff --git a/visual_workflow_builder/frontend_v4/src/components/AIModelSelector.tsx b/visual_workflow_builder/frontend_v4/src/components/AIModelSelector.tsx
new file mode 100644
index 000000000..c4fb3552d
--- /dev/null
+++ b/visual_workflow_builder/frontend_v4/src/components/AIModelSelector.tsx
@@ -0,0 +1,238 @@
+/**
+ * Composant de sélection de modèle IA avec listing Ollama dynamique
+ * Propose des modèles recommandés selon le type de tâche
+ */
+
+import { useState, useEffect, useCallback, useRef } from 'react';
+import {
+  listModels,
+  getRecommendedModels,
+  checkOllamaStatus,
+  AI_TASK_TYPES,
+  MODEL_RECOMMENDATIONS,
+  type OllamaModelInfo,
+  type AITaskType,
+} from '../services/ollamaService';
+
+interface Props {
+  taskType: AITaskType;
+  selectedModel: string;
+  onModelChange: (model: string) => void;
+  needsVision?: boolean;
+}
+
+export default function AIModelSelector({
+  taskType,
+  selectedModel,
+  onModelChange,
+  needsVision = false,
+}: Props) {
+  const [models, setModels] = useState<OllamaModelInfo[]>([]);
+  const [loading, setLoading] = useState(true);
+  const [ollamaStatus, setOllamaStatus] = useState<{ available: boolean; version?: string }>({ available: false });
+  const [showAllModels, setShowAllModels] = useState(false);
+  const [recommendedModels, setRecommendedModels] = useState<{
+    visionModels: OllamaModelInfo[];
+    textModels: OllamaModelInfo[];
+  }>({ visionModels: [], textModels: [] });
+
+  // Ref stable pour onModelChange (évite les boucles infinies dans les effets)
+  const onModelChangeRef = useRef(onModelChange);
+  useEffect(() => { onModelChangeRef.current = onModelChange; });
+
+  // Charger le statut Ollama et les modèles (données uniquement, pas d'auto-sélection)
+  const loadModels = useCallback(async () => {
+    setLoading(true);
+    try {
+      const status = await checkOllamaStatus();
+      setOllamaStatus(status);
+
+      if (status.available) {
+        const allModels = await listModels();
+        setModels(allModels);
+
+        const recommended = await getRecommendedModels(taskType);
+        setRecommendedModels({
+          visionModels: recommended.visionModels,
+          textModels: recommended.textModels,
+        });
+      }
+    } catch (err) {
+      console.error('Erreur chargement modèles:', err);
+    } finally {
+      setLoading(false);
+    }
+  }, [taskType]);
+
+  useEffect(() => {
+    loadModels();
+  }, [loadModels]);
+
+  // Auto-correction synchrone : quand le modèle sélectionné est incompatible
+  // avec le mode actuel (vision vs texte), on sélectionne automatiquement
+  // le premier modèle recommandé compatible
+  useEffect(() => {
+    if (loading || models.length === 0) return;
+
+    const currentInfo = models.find(m => m.name === selectedModel);
+    const isIncompatible = currentInfo &&
+      (needsVision ? !currentInfo.isVision : currentInfo.isVision);
+
+    if (!selectedModel || isIncompatible) {
+      const recs = MODEL_RECOMMENDATIONS[taskType];
+      const defaultName = needsVision ? recs?.vision?.[0] : recs?.text?.[0];
+
+      if (defaultName) {
+        const found = models.find(m => m.name.includes(defaultName.split(':')[0]));
+        if (found) { onModelChangeRef.current(found.name); return; }
+      }
+
+      // Fallback : premier modèle compatible
+      const fallback = models.find(m => needsVision ? m.isVision : !m.isVision);
+      if (fallback) onModelChangeRef.current(fallback.name);
+      else if (models.length > 0) onModelChangeRef.current(models[0].name);
+    }
+  }, [loading, models, needsVision, taskType, selectedModel]);
+
+  const taskInfo = AI_TASK_TYPES.find(t => t.id === taskType);
+  const recommendations = MODEL_RECOMMENDATIONS[taskType];
+
+  // Filtrer les modèles à afficher
+  const filteredModels = needsVision
+    ? recommendedModels.visionModels
+    : showAllModels
+      ? models
+      : recommendedModels.textModels;
+
+  // Vérifier si le modèle sélectionné est dans les options visibles du dropdown
+  const selectedModelInOptions = selectedModel && (
+    filteredModels.some(m => m.name === selectedModel) ||
+    (showAllModels && models.some(m => m.name === selectedModel))
+  );
+
+  if (loading) {
+    return (
+      <div className="ai-model-selector loading">
+        <div className="loading-spinner">Chargement des modèles...</div>
+      </div>
+    );
+  }
+
+  if (!ollamaStatus.available) {
+    return (
+      <div className="ai-model-selector error">
+        <div className="status-error">
+          <span className="icon">⚠️</span>
+          <span>Ollama non disponible</span>
+        </div>
+        <button className="btn-retry" onClick={loadModels}>
+          Réessayer
+        </button>
+      </div>
+    );
+  }
+
+  return (
+    <div className="ai-model-selector">
+      {/* Info sur le type de tâche */}
+      <div className="task-info">
+        <span className="task-icon">{taskInfo?.icon}</span>
+        <span className="task-description">{recommendations?.description}</span>
+      </div>
+
+      {/* Sélecteur de modèle */}
+      <div className="model-select-container">
+        <label>Modèle Ollama</label>
+        <select
+          value={selectedModel}
+          onChange={(e) => onModelChange(e.target.value)}
+          className="model-select"
+        >
+          {filteredModels.length === 0 && !selectedModel ? (
+            <option value="">Aucun modèle disponible</option>
+          ) : (
+            <>
+              {/* Option de secours : si le modèle sélectionné n'apparaît pas
+                  dans les options visibles, on l'ajoute en tant qu'option
+                  désactivée pour que le <select> HTML fonctionne correctement */}
+              {selectedModel && !selectedModelInOptions && (
+                <option value={selectedModel} disabled>
+                  {selectedModel} (changement en cours...)
+                </option>
+              )}
+
+              {/* Groupe des modèles recommandés */}
+              {recommendedModels.visionModels.length > 0 && needsVision && (
+                <optgroup label="Recommandés (Vision)">
+                  {recommendedModels.visionModels.slice(0, 3).map(m => (
+                    <option key={m.name} value={m.name}>
+                      {m.displayName} ({m.size}) {recommendations?.vision.some(r => m.name.includes(r.split(':')[0])) ? '★' : ''}
+                    </option>
+                  ))}
+                </optgroup>
+              )}
+
+              {recommendedModels.textModels.length > 0 && !needsVision && (
+                <optgroup label="Recommandés">
+                  {recommendedModels.textModels.slice(0, 3).map(m => (
+                    <option key={m.name} value={m.name}>
+                      {m.displayName} ({m.size}) {recommendations?.text.some(r => m.name.includes(r.split(':')[0])) ? '★' : ''}
+                    </option>
+                  ))}
+                </optgroup>
+              )}
+
+              {/* Tous les modèles si demandé */}
+              {showAllModels && (
+                <optgroup label="Autres modèles">
+                  {models
+                    .filter(m => needsVision ? m.isVision : !m.isVision)
+                    .filter(m => !recommendedModels.textModels.slice(0, 3).some(r => r.name === m.name))
+                    .filter(m => !recommendedModels.visionModels.slice(0, 3).some(r => r.name === m.name))
+                    .map(m => (
+                      <option key={m.name} value={m.name}>
+                        {m.displayName} ({m.size}) {m.isVision ? '👁️' : ''}
+                      </option>
+                    ))}
+                </optgroup>
+              )}
+            </>
+          )}
+        </select>
+      </div>
+
+      {/* Toggle pour voir tous les modèles */}
+      <div className="model-options">
+        <label className="checkbox-label">
+          <input
+            type="checkbox"
+            checked={showAllModels}
+            onChange={(e) => setShowAllModels(e.target.checked)}
+          />
+          Afficher tous les modèles
+        </label>
+
+        {needsVision && (
+          <span className="vision-badge">👁️ Vision requise</span>
+        )}
+      </div>
+
+      {/* Modèle sélectionné */}
+      {selectedModel && (
+        <div className="selected-model-info">
+          <span className="label">Sélectionné:</span>
+          <span className="model-name">{selectedModel}</span>
+        </div>
+      )}
+
+      {/* Statut Ollama */}
+      <div className="ollama-status">
+        <span className="status-dot available" />
+        <span className="status-text">Ollama v{ollamaStatus.version}</span>
+        <button className="btn-refresh" onClick={loadModels} title="Rafraîchir">
+          🔄
+        </button>
+      </div>
+    </div>
+  );
+}
diff --git a/visual_workflow_builder/frontend_v4/src/components/ConfidenceDashboard.tsx b/visual_workflow_builder/frontend_v4/src/components/ConfidenceDashboard.tsx
index c2bc95056..7bab752fc 100644
--- a/visual_workflow_builder/frontend_v4/src/components/ConfidenceDashboard.tsx
+++ b/visual_workflow_builder/frontend_v4/src/components/ConfidenceDashboard.tsx
@@ -1,11 +1,11 @@
 /**
  * Confidence Dashboard Component
  *
- * Affiche les scores de confiance en temps réel pendant l'exécution.
- * Montre CLIP score, template score, distance et méthode utilisée.
+ * Badge compact dans le header avec dropdown pour les scores de confiance.
+ * S'affiche uniquement en mode intelligent/debug.
  */
 
-import { useState, useEffect } from 'react';
+import { useState, useEffect, useRef } from 'react';
 
 interface StepScore {
   stepIndex: number;
@@ -27,7 +27,19 @@ interface Props {
 export default function ConfidenceDashboard({ isExecutionRunning, executionMode }: Props) {
   const [scores, setScores] = useState<StepScore[]>([]);
   const [currentStep, setCurrentStep] = useState<number>(0);
-  const [isExpanded, setIsExpanded] = useState(true);
+  const [isOpen, setIsOpen] = useState(false);
+  const dropdownRef = useRef<HTMLDivElement>(null);
+
+  // Fermer le dropdown au clic extérieur
+  useEffect(() => {
+    const handleClickOutside = (e: MouseEvent) => {
+      if (dropdownRef.current && !dropdownRef.current.contains(e.target as Node)) {
+        setIsOpen(false);
+      }
+    };
+    document.addEventListener('mousedown', handleClickOutside);
+    return () => document.removeEventListener('mousedown', handleClickOutside);
+  }, []);
 
   // Polling pour les scores en temps réel
   useEffect(() => {
@@ -41,7 +53,6 @@ export default function ConfidenceDashboard({ isExecutionRunning, executionMode
         if (data.success && data.execution) {
           setCurrentStep(data.execution.current_step_index || 0);
 
-          // Si on a des resultats d'etapes, les ajouter
           if (data.execution.step_results) {
             const newScores: StepScore[] = data.execution.step_results.map((result: any, index: number) => ({
               stepIndex: index,
@@ -66,27 +77,19 @@ export default function ConfidenceDashboard({ isExecutionRunning, executionMode
     return () => clearInterval(interval);
   }, [isExecutionRunning]);
 
-  // Reset quand l'execution s'arrete
-  useEffect(() => {
-    if (!isExecutionRunning) {
-      // Garder les scores pour review
-    }
-  }, [isExecutionRunning]);
-
   if (executionMode === 'basic') {
-    return null; // Pas de dashboard en mode basic
+    return null;
   }
 
   const getConfidenceColor = (confidence: number): string => {
-    if (confidence >= 0.8) return '#a6e3a1'; // Vert
-    if (confidence >= 0.5) return '#f9e2af'; // Jaune
-    return '#f38ba8'; // Rouge
+    if (confidence >= 0.8) return '#a6e3a1';
+    if (confidence >= 0.5) return '#f9e2af';
+    return '#f38ba8';
   };
 
   const getMethodIcon = (method: string): string => {
     switch (method) {
-      case 'clip': return '🧠';
-      case 'clip_embedding': return '🧠';
+      case 'clip': case 'clip_embedding': return '🧠';
       case 'zoned_template': return '📍';
       case 'direct_template': return '🔍';
       case 'seeclick_grounding': return '🎯';
@@ -104,278 +107,238 @@ export default function ConfidenceDashboard({ isExecutionRunning, executionMode
     ? (scores.filter(s => s.success).length / scores.length) * 100
     : 0;
 
-  return (
-    <div className="confidence-dashboard">
-      <div className="dashboard-header" onClick={() => setIsExpanded(!isExpanded)}>
-        <div className="header-left">
-          <span className="dashboard-icon">📊</span>
-          <span className="dashboard-title">Scores de confiance</span>
-          {isExecutionRunning && (
-            <span className="live-indicator">LIVE</span>
-          )}
-        </div>
-        <div className="header-right">
-          <span className="toggle-icon">{isExpanded ? '▼' : '▶'}</span>
-        </div>
-      </div>
+  const avgPct = (averageConfidence * 100).toFixed(0);
 
-      {isExpanded && (
-        <div className="dashboard-content">
-          {/* Metriques globales */}
-          <div className="metrics-row">
-            <div className="metric">
-              <span className="metric-label">Etape actuelle</span>
-              <span className="metric-value">{currentStep + 1}</span>
+  return (
+    <div className="confidence-header-widget" ref={dropdownRef}>
+      {/* Badge compact dans le header */}
+      <button className="confidence-badge" onClick={() => setIsOpen(!isOpen)}>
+        <span className="badge-icon">📊</span>
+        {scores.length > 0 ? (
+          <>
+            <span className="badge-value" style={{ color: getConfidenceColor(averageConfidence) }}>
+              {avgPct}%
+            </span>
+            {isExecutionRunning && <span className="badge-live">LIVE</span>}
+          </>
+        ) : (
+          <span className="badge-label">Confiance</span>
+        )}
+        <span className={`badge-arrow ${isOpen ? 'open' : ''}`}>▼</span>
+      </button>
+
+      {/* Dropdown avec les détails */}
+      {isOpen && (
+        <div className="confidence-dropdown">
+          {/* Métriques globales */}
+          <div className="cd-metrics">
+            <div className="cd-metric">
+              <span className="cd-metric-label">Étape</span>
+              <span className="cd-metric-value">{currentStep + 1}</span>
             </div>
-            <div className="metric">
-              <span className="metric-label">Confiance moy.</span>
-              <span
-                className="metric-value"
-                style={{ color: getConfidenceColor(averageConfidence) }}
-              >
-                {(averageConfidence * 100).toFixed(0)}%
+            <div className="cd-metric">
+              <span className="cd-metric-label">Confiance</span>
+              <span className="cd-metric-value" style={{ color: getConfidenceColor(averageConfidence) }}>
+                {avgPct}%
               </span>
             </div>
-            <div className="metric">
-              <span className="metric-label">Taux succes</span>
-              <span
-                className="metric-value"
-                style={{ color: getConfidenceColor(successRate / 100) }}
-              >
+            <div className="cd-metric">
+              <span className="cd-metric-label">Succès</span>
+              <span className="cd-metric-value" style={{ color: getConfidenceColor(successRate / 100) }}>
                 {successRate.toFixed(0)}%
               </span>
             </div>
           </div>
 
-          {/* Liste des scores par etape */}
-          <div className="scores-list">
+          {/* Liste des scores */}
+          <div className="cd-scores-list">
             {scores.length === 0 ? (
-              <div className="no-scores">
-                {isExecutionRunning
-                  ? "En attente de resultats..."
-                  : "Aucune execution en cours"}
+              <div className="cd-empty">
+                {isExecutionRunning ? "En attente..." : "Aucune exécution"}
               </div>
             ) : (
               scores.map((score) => (
                 <div
                   key={score.stepIndex}
-                  className={`score-item ${score.success ? 'success' : 'error'} ${score.stepIndex === currentStep ? 'current' : ''}`}
+                  className={`cd-score-item ${score.success ? 'success' : 'error'} ${score.stepIndex === currentStep ? 'current' : ''}`}
                 >
-                  <div className="score-step">
-                    <span className="step-number">#{score.stepIndex + 1}</span>
-                    <span className="method-icon">{getMethodIcon(score.method)}</span>
-                  </div>
-                  <div className="score-details">
-                    <span className="method-name">{score.method}</span>
-                    {score.distance !== undefined && (
-                      <span className="distance">{score.distance.toFixed(0)}px</span>
-                    )}
-                  </div>
+                  <span className="cd-step">#{score.stepIndex + 1}</span>
+                  <span className="cd-method-icon">{getMethodIcon(score.method)}</span>
+                  <span className="cd-method-name">{score.method}</span>
+                  {score.distance !== undefined && (
+                    <span className="cd-distance">{score.distance.toFixed(0)}px</span>
+                  )}
                   <div
-                    className="confidence-bar"
+                    className="cd-bar"
                     style={{
                       '--confidence': `${score.confidence * 100}%`,
                       '--confidence-color': getConfidenceColor(score.confidence)
                     } as React.CSSProperties}
                   >
-                    <span className="confidence-value">
-                      {(score.confidence * 100).toFixed(0)}%
-                    </span>
+                    <span className="cd-bar-value">{(score.confidence * 100).toFixed(0)}%</span>
                   </div>
                 </div>
               ))
             )}
           </div>
 
-          {/* Legende */}
-          <div className="legend">
-            <span className="legend-item">🧠 CLIP</span>
-            <span className="legend-item">📍 Template zone</span>
-            <span className="legend-item">🎯 SeeClick</span>
-            <span className="legend-item">📌 Static</span>
+          {/* Légende */}
+          <div className="cd-legend">
+            <span>🧠 CLIP</span>
+            <span>📍 Template</span>
+            <span>🎯 SeeClick</span>
+            <span>📌 Static</span>
           </div>
         </div>
       )}
 
       <style>{`
-        .confidence-dashboard {
-          position: fixed;
-          bottom: 20px;
-          right: 20px;
-          width: 320px;
-          background: #1e1e2e;
-          border-radius: 12px;
-          box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
-          border: 1px solid #313244;
-          overflow: hidden;
-          z-index: 1000;
-          font-size: 13px;
+        .confidence-header-widget {
+          position: relative;
         }
 
-        .dashboard-header {
-          display: flex;
-          justify-content: space-between;
-          align-items: center;
-          padding: 12px 16px;
-          background: #313244;
-          cursor: pointer;
-        }
-
-        .header-left {
+        .confidence-badge {
           display: flex;
           align-items: center;
-          gap: 8px;
-        }
-
-        .dashboard-icon {
-          font-size: 16px;
-        }
-
-        .dashboard-title {
-          font-weight: 600;
-          color: #cdd6f4;
-        }
-
-        .live-indicator {
-          padding: 2px 6px;
-          background: #f38ba8;
-          color: #1e1e2e;
-          border-radius: 4px;
-          font-size: 10px;
-          font-weight: bold;
-          animation: pulse 1.5s infinite;
-        }
-
-        @keyframes pulse {
-          0%, 100% { opacity: 1; }
-          50% { opacity: 0.6; }
-        }
-
-        .toggle-icon {
-          color: #a6adc8;
-          font-size: 10px;
-        }
-
-        .dashboard-content {
-          padding: 12px;
-        }
-
-        .metrics-row {
-          display: flex;
-          justify-content: space-between;
-          margin-bottom: 12px;
-          padding-bottom: 12px;
-          border-bottom: 1px solid #313244;
-        }
-
-        .metric {
-          text-align: center;
-        }
-
-        .metric-label {
-          display: block;
-          font-size: 10px;
-          color: #a6adc8;
-          margin-bottom: 4px;
-          text-transform: uppercase;
-        }
-
-        .metric-value {
-          font-size: 18px;
-          font-weight: bold;
-          color: #cdd6f4;
-        }
-
-        .scores-list {
-          max-height: 200px;
-          overflow-y: auto;
-        }
-
-        .no-scores {
-          text-align: center;
-          color: #a6adc8;
-          padding: 20px;
-          font-style: italic;
-        }
-
-        .score-item {
-          display: flex;
-          align-items: center;
-          padding: 8px;
-          margin-bottom: 4px;
-          background: #313244;
+          gap: 6px;
+          padding: 6px 12px;
+          background: rgba(255, 255, 255, 0.1);
+          border: 1px solid rgba(255, 255, 255, 0.2);
           border-radius: 6px;
-          gap: 8px;
+          color: #cdd6f4;
+          cursor: pointer;
+          font-size: 13px;
+          transition: all 0.2s;
         }
 
-        .score-item.current {
-          border: 1px solid #89b4fa;
-          background: rgba(137, 180, 250, 0.1);
+        .confidence-badge:hover {
+          background: rgba(255, 255, 255, 0.18);
+          border-color: rgba(255, 255, 255, 0.35);
         }
 
-        .score-item.error {
-          border-left: 3px solid #f38ba8;
-        }
+        .badge-icon { font-size: 14px; }
 
-        .score-item.success {
-          border-left: 3px solid #a6e3a1;
-        }
-
-        .score-step {
-          display: flex;
-          align-items: center;
-          gap: 4px;
-          min-width: 50px;
-        }
-
-        .step-number {
-          color: #89b4fa;
-          font-weight: bold;
-        }
-
-        .method-icon {
+        .badge-value {
+          font-weight: 700;
           font-size: 14px;
         }
 
-        .score-details {
-          flex: 1;
+        .badge-label {
+          font-size: 12px;
+          opacity: 0.7;
+        }
+
+        .badge-live {
+          padding: 1px 5px;
+          background: #f38ba8;
+          color: #1e1e2e;
+          border-radius: 3px;
+          font-size: 9px;
+          font-weight: bold;
+          animation: cd-pulse 1.5s infinite;
+        }
+
+        @keyframes cd-pulse {
+          0%, 100% { opacity: 1; }
+          50% { opacity: 0.5; }
+        }
+
+        .badge-arrow {
+          font-size: 9px;
+          opacity: 0.6;
+          transition: transform 0.2s;
+        }
+        .badge-arrow.open { transform: rotate(180deg); }
+
+        .confidence-dropdown {
+          position: absolute;
+          top: calc(100% + 6px);
+          right: 0;
+          width: 320px;
+          background: #1e1e2e;
+          border: 1px solid #313244;
+          border-radius: 10px;
+          box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
+          z-index: 1000;
+          overflow: hidden;
+        }
+
+        .cd-metrics {
           display: flex;
-          flex-direction: column;
-          gap: 2px;
+          justify-content: space-around;
+          padding: 12px;
+          background: #313244;
         }
 
-        .method-name {
-          color: #cdd6f4;
-          font-size: 11px;
-        }
+        .cd-metric { text-align: center; }
 
-        .distance {
-          color: #fab387;
+        .cd-metric-label {
+          display: block;
           font-size: 10px;
+          color: #a6adc8;
+          text-transform: uppercase;
+          margin-bottom: 3px;
         }
 
-        .confidence-bar {
-          width: 60px;
-          height: 20px;
+        .cd-metric-value {
+          font-size: 18px;
+          font-weight: 700;
+          color: #cdd6f4;
+        }
+
+        .cd-scores-list {
+          max-height: 220px;
+          overflow-y: auto;
+          padding: 8px;
+        }
+
+        .cd-empty {
+          text-align: center;
+          color: #a6adc8;
+          padding: 16px;
+          font-style: italic;
+          font-size: 12px;
+        }
+
+        .cd-score-item {
+          display: flex;
+          align-items: center;
+          gap: 6px;
+          padding: 6px 8px;
+          margin-bottom: 3px;
+          background: #313244;
+          border-radius: 5px;
+          font-size: 12px;
+        }
+
+        .cd-score-item.current { border: 1px solid #89b4fa; background: rgba(137, 180, 250, 0.1); }
+        .cd-score-item.error { border-left: 3px solid #f38ba8; }
+        .cd-score-item.success { border-left: 3px solid #a6e3a1; }
+
+        .cd-step { color: #89b4fa; font-weight: 700; min-width: 28px; }
+        .cd-method-icon { font-size: 13px; }
+        .cd-method-name { flex: 1; color: #cdd6f4; font-size: 11px; }
+        .cd-distance { color: #fab387; font-size: 10px; }
+
+        .cd-bar {
+          width: 52px;
+          height: 18px;
           background: #45475a;
           border-radius: 4px;
           position: relative;
           overflow: hidden;
         }
 
-        .confidence-bar::before {
+        .cd-bar::before {
           content: '';
           position: absolute;
-          left: 0;
-          top: 0;
-          bottom: 0;
+          left: 0; top: 0; bottom: 0;
           width: var(--confidence);
           background: var(--confidence-color);
           border-radius: 4px;
-          transition: width 0.3s;
         }
 
-        .confidence-value {
+        .cd-bar-value {
           position: relative;
           z-index: 1;
           display: flex;
@@ -383,20 +346,16 @@ export default function ConfidenceDashboard({ isExecutionRunning, executionMode
           justify-content: center;
           height: 100%;
           font-size: 10px;
-          font-weight: bold;
+          font-weight: 700;
           color: #1e1e2e;
         }
 
-        .legend {
+        .cd-legend {
           display: flex;
-          gap: 12px;
+          gap: 10px;
           justify-content: center;
-          margin-top: 12px;
-          padding-top: 8px;
+          padding: 8px;
           border-top: 1px solid #313244;
-        }
-
-        .legend-item {
           font-size: 10px;
           color: #a6adc8;
         }
diff --git a/visual_workflow_builder/frontend_v4/src/components/PropertiesPanel.tsx b/visual_workflow_builder/frontend_v4/src/components/PropertiesPanel.tsx
index fa87d1d84..67b20871a 100644
--- a/visual_workflow_builder/frontend_v4/src/components/PropertiesPanel.tsx
+++ b/visual_workflow_builder/frontend_v4/src/components/PropertiesPanel.tsx
@@ -2,6 +2,8 @@ import { useState, useEffect } from 'react';
 import type { Step, ActionType } from '../types';
 import { ACTIONS } from '../types';
 import { getAnchorThumbnailUrl } from '../services/api';
+import AIModelSelector from './AIModelSelector';
+import type { AITaskType } from '../services/ollamaService';
 
 interface Props {
   step: Step | null;
@@ -147,7 +149,7 @@ export default function PropertiesPanel({ step, onUpdateParams, onDelete }: Prop
                 value={String(params.text || '')}
                 onChange={(e) => updateParam('text', e.target.value)}
                 rows={3}
-                placeholder="Entrez le texte..."
+                placeholder={"Entrez le texte...\nSupporte les variables : {{nom_variable}}"}
               />
             </div>
             <div className="prop-field">
@@ -171,6 +173,16 @@ export default function PropertiesPanel({ step, onUpdateParams, onDelete }: Prop
                 Effacer le champ avant
               </label>
             </div>
+            <div className="prop-field">
+              <label>Stocker dans une variable (optionnel)</label>
+              <input
+                type="text"
+                value={String(params.output_variable || '')}
+                onChange={(e) => updateParam('output_variable', e.target.value)}
+                placeholder="nom_variable"
+              />
+              <small className="field-hint">Le texte saisi sera disponible via {'{{nom_variable}}'} dans les étapes suivantes</small>
+            </div>
           </>
         );
 
@@ -442,16 +454,316 @@ export default function PropertiesPanel({ step, onUpdateParams, onDelete }: Prop
         );
 
       // === IA ===
+      case 'ai_ocr':
+        return (
+          <>
+            <div className="prop-section-title">
+              <span className="icon">📝</span> OCR Intelligent
+            </div>
+            <AIModelSelector
+              taskType="ocr"
+              selectedModel={String(params.model || '')}
+              onModelChange={(model) => updateParam('model', model)}
+              needsVision={true}
+            />
+            <div className="prop-field">
+              <label>Variable de sortie</label>
+              <input
+                type="text"
+                value={String(params.variable_name || '')}
+                onChange={(e) => updateParam('variable_name', e.target.value)}
+                placeholder="texte_extrait"
+              />
+            </div>
+            <div className="prop-field">
+              <label>Langue</label>
+              <select
+                value={String(params.language || 'fr')}
+                onChange={(e) => updateParam('language', e.target.value)}
+              >
+                <option value="fr">Français</option>
+                <option value="en">Anglais</option>
+                <option value="auto">Auto-détection</option>
+              </select>
+            </div>
+            <div className="prop-field">
+              <label>Post-traitement</label>
+              <select
+                value={String(params.post_process || 'none')}
+                onChange={(e) => updateParam('post_process', e.target.value)}
+              >
+                <option value="none">Aucun</option>
+                <option value="clean">Nettoyer espaces</option>
+                <option value="structure">Structurer (JSON)</option>
+              </select>
+            </div>
+          </>
+        );
+
+      case 'ai_summarize':
+        return (
+          <>
+            <div className="prop-section-title">
+              <span className="icon">📋</span> Résumé IA
+            </div>
+            <AIModelSelector
+              taskType="summarize"
+              selectedModel={String(params.model || '')}
+              onModelChange={(model) => updateParam('model', model)}
+              needsVision={false}
+            />
+            <div className="prop-field">
+              <label>Texte source (variable ou direct)</label>
+              <textarea
+                value={String(params.input_text || '')}
+                onChange={(e) => updateParam('input_text', e.target.value)}
+                rows={3}
+                placeholder="${variable_texte} ou texte direct"
+              />
+            </div>
+            <div className="prop-field">
+              <label>Longueur du résumé</label>
+              <select
+                value={String(params.summary_length || 'medium')}
+                onChange={(e) => updateParam('summary_length', e.target.value)}
+              >
+                <option value="short">Court (1-2 phrases)</option>
+                <option value="medium">Moyen (1 paragraphe)</option>
+                <option value="long">Long (détaillé)</option>
+              </select>
+            </div>
+            <div className="prop-field">
+              <label>Variable de sortie</label>
+              <input
+                type="text"
+                value={String(params.variable_name || '')}
+                onChange={(e) => updateParam('variable_name', e.target.value)}
+                placeholder="resume_texte"
+              />
+            </div>
+          </>
+        );
+
+      case 'ai_extract':
+        return (
+          <>
+            <div className="prop-section-title">
+              <span className="icon">🔍</span> Extraction IA
+            </div>
+            <AIModelSelector
+              taskType="extract"
+              selectedModel={String(params.model || '')}
+              onModelChange={(model) => updateParam('model', model)}
+              needsVision={Boolean(params.use_vision)}
+            />
+            <div className="prop-field">
+              <label>Instructions d'extraction</label>
+              <textarea
+                value={String(params.prompt || '')}
+                onChange={(e) => updateParam('prompt', e.target.value)}
+                rows={3}
+                placeholder="Ex: Extrais le nom, la date et le montant"
+              />
+            </div>
+            <div className="prop-field">
+              <label>Format de sortie</label>
+              <select
+                value={String(params.output_format || 'json')}
+                onChange={(e) => updateParam('output_format', e.target.value)}
+              >
+                <option value="text">Texte brut</option>
+                <option value="json">JSON structuré</option>
+                <option value="csv">CSV</option>
+              </select>
+            </div>
+            <div className="prop-field">
+              <label>Variable de sortie</label>
+              <input
+                type="text"
+                value={String(params.variable_name || '')}
+                onChange={(e) => updateParam('variable_name', e.target.value)}
+                placeholder="donnees_extraites"
+              />
+            </div>
+            <div className="prop-field checkbox">
+              <label>
+                <input
+                  type="checkbox"
+                  checked={Boolean(params.use_vision)}
+                  onChange={(e) => updateParam('use_vision', e.target.checked)}
+                />
+                Utiliser la vision (pour images/captures)
+              </label>
+            </div>
+          </>
+        );
+
+      case 'ai_classify':
+        return (
+          <>
+            <div className="prop-section-title">
+              <span className="icon">🏷️</span> Classification IA
+            </div>
+            <AIModelSelector
+              taskType="classify"
+              selectedModel={String(params.model || '')}
+              onModelChange={(model) => updateParam('model', model)}
+              needsVision={false}
+            />
+            <div className="prop-field">
+              <label>Texte à classifier</label>
+              <textarea
+                value={String(params.input_text || '')}
+                onChange={(e) => updateParam('input_text', e.target.value)}
+                rows={2}
+                placeholder="${variable_texte} ou texte direct"
+              />
+            </div>
+            <div className="prop-field">
+              <label>Catégories (une par ligne)</label>
+              <textarea
+                value={String(params.categories || '')}
+                onChange={(e) => updateParam('categories', e.target.value)}
+                rows={4}
+                placeholder="Facture&#10;Devis&#10;Commande&#10;Autre"
+              />
+            </div>
+            <div className="prop-field">
+              <label>Variable de sortie</label>
+              <input
+                type="text"
+                value={String(params.variable_name || '')}
+                onChange={(e) => updateParam('variable_name', e.target.value)}
+                placeholder="categorie_detectee"
+              />
+            </div>
+          </>
+        );
+
       case 'ai_analyze_text':
         return (
           <>
+            <div className="prop-section-title">
+              <span className="icon">🧠</span> Analyse IA
+            </div>
+            <AIModelSelector
+              taskType="analyze"
+              selectedModel={String(params.model || '')}
+              onModelChange={(model) => updateParam('model', model)}
+              needsVision={!params.input_text}
+            />
             <div className="prop-field">
-              <label>Prompt pour l'IA</label>
+              <label>Mode d'entrée</label>
+              <div className="mode-toggle-row">
+                <button
+                  className={`mode-btn ${!params.input_text ? 'active' : ''}`}
+                  onClick={() => updateParam('input_text', '')}
+                >
+                  📸 Image (screenshot)
+                </button>
+                <button
+                  className={`mode-btn ${params.input_text ? 'active' : ''}`}
+                  onClick={() => updateParam('input_text', params.input_text || ' ')}
+                >
+                  📝 Texte brut
+                </button>
+              </div>
+            </div>
+            {params.input_text !== undefined && params.input_text !== '' && (
+              <div className="prop-field">
+                <label>Texte à analyser</label>
+                <textarea
+                  value={String(params.input_text || '')}
+                  onChange={(e) => updateParam('input_text', e.target.value)}
+                  rows={6}
+                  placeholder={"Collez le texte ici ou utilisez une variable :\n{{nom_variable}}"}
+                />
+                <small className="field-hint">Supporte les variables : {'{{resultat_ocr}}'}, {'{{texte_extrait}}'}, etc.</small>
+              </div>
+            )}
+            <div className="prop-field">
+              <label>Prompt d'analyse</label>
               <textarea
                 value={String(params.prompt || '')}
                 onChange={(e) => updateParam('prompt', e.target.value)}
                 rows={4}
-                placeholder="Ex: Extrais le montant total de cette facture"
+                placeholder="Ex: Traduis ce texte en français et fais un résumé..."
+              />
+            </div>
+            <div className="prop-field">
+              <label>Variable de sortie</label>
+              <input
+                type="text"
+                value={String(params.output_variable || 'resultat_analyse')}
+                onChange={(e) => updateParam('output_variable', e.target.value)}
+                placeholder="resultat_analyse"
+              />
+            </div>
+            <div className="prop-field">
+              <label>Température ({Number(params.temperature || 0.7).toFixed(1)})</label>
+              <input
+                type="range"
+                min="0"
+                max="1"
+                step="0.1"
+                value={Number(params.temperature || 0.7)}
+                onChange={(e) => updateParam('temperature', Number(e.target.value))}
+              />
+              <small className="field-hint">0 = précis/déterministe, 1 = créatif/varié</small>
+            </div>
+            <div className="prop-field">
+              <label>Tokens max</label>
+              <select
+                value={String(params.max_tokens || '-1')}
+                onChange={(e) => updateParam('max_tokens', Number(e.target.value))}
+              >
+                <option value="-1">Illimité (recommandé)</option>
+                <option value="1000">1 000</option>
+                <option value="2000">2 000</option>
+                <option value="4000">4 000</option>
+                <option value="8000">8 000</option>
+              </select>
+            </div>
+          </>
+        );
+
+      case 'ai_custom':
+        return (
+          <>
+            <div className="prop-section-title">
+              <span className="icon">⚙️</span> IA Personnalisée
+            </div>
+            <AIModelSelector
+              taskType="custom"
+              selectedModel={String(params.model || '')}
+              onModelChange={(model) => updateParam('model', model)}
+              needsVision={Boolean(params.use_vision)}
+            />
+            <div className="prop-field">
+              <label>Prompt système (contexte)</label>
+              <textarea
+                value={String(params.system_prompt || '')}
+                onChange={(e) => updateParam('system_prompt', e.target.value)}
+                rows={2}
+                placeholder="Tu es un assistant expert en..."
+              />
+            </div>
+            <div className="prop-field">
+              <label>Prompt utilisateur</label>
+              <textarea
+                value={String(params.prompt || '')}
+                onChange={(e) => updateParam('prompt', e.target.value)}
+                rows={4}
+                placeholder="Votre instruction..."
+              />
+            </div>
+            <div className="prop-field">
+              <label>Entrée (variable ou texte)</label>
+              <textarea
+                value={String(params.input_text || '')}
+                onChange={(e) => updateParam('input_text', e.target.value)}
+                rows={2}
+                placeholder="${variable} ou texte direct"
               />
             </div>
             <div className="prop-field">
@@ -463,17 +775,15 @@ export default function PropertiesPanel({ step, onUpdateParams, onDelete }: Prop
                 placeholder="resultat_ia"
               />
             </div>
-            <div className="prop-field">
-              <label>Modèle IA</label>
-              <select
-                value={String(params.model || 'auto')}
-                onChange={(e) => updateParam('model', e.target.value)}
-              >
-                <option value="auto">Automatique</option>
-                <option value="gpt-4">GPT-4</option>
-                <option value="claude">Claude</option>
-                <option value="local">Local (Ollama)</option>
-              </select>
+            <div className="prop-field checkbox">
+              <label>
+                <input
+                  type="checkbox"
+                  checked={Boolean(params.use_vision)}
+                  onChange={(e) => updateParam('use_vision', e.target.checked)}
+                />
+                Utiliser modèle vision
+              </label>
             </div>
           </>
         );
@@ -615,7 +925,7 @@ export default function PropertiesPanel({ step, onUpdateParams, onDelete }: Prop
       {/* Ancre visuelle */}
       {action?.needsAnchor && (
         <div className="prop-anchor">
-          <label>Ancre visuelle</label>
+          <label>Ancre visuelle (obligatoire)</label>
           {step.anchor_id ? (
             <div className="anchor-preview">
               <img src={getAnchorThumbnailUrl(step.anchor_id)} alt="Ancre" />
@@ -629,6 +939,17 @@ export default function PropertiesPanel({ step, onUpdateParams, onDelete }: Prop
         </div>
       )}
 
+      {/* Ancre optionnelle (pour les actions qui peuvent fonctionner avec ou sans) */}
+      {!action?.needsAnchor && step.anchor_id && (
+        <div className="prop-anchor">
+          <label>Ancre visuelle (optionnelle)</label>
+          <div className="anchor-preview">
+            <img src={getAnchorThumbnailUrl(step.anchor_id)} alt="Ancre" />
+            <span className="anchor-ok">✓ Définie</span>
+          </div>
+        </div>
+      )}
+
       <div className="prop-actions">
         <button className="btn-save" onClick={handleSave}>
           Enregistrer
diff --git a/visual_workflow_builder/frontend_v4/src/components/VariableManager.tsx b/visual_workflow_builder/frontend_v4/src/components/VariableManager.tsx
index 63ff4d88d..a9afc8bb0 100644
--- a/visual_workflow_builder/frontend_v4/src/components/VariableManager.tsx
+++ b/visual_workflow_builder/frontend_v4/src/components/VariableManager.tsx
@@ -1,9 +1,13 @@
 /**
  * Gestionnaire de Variables simplifié pour VWB v4
  * Permet de créer, modifier et supprimer des variables de workflow
+ * + Section "Variables du workflow" : extraction automatique des variables
+ *   produites (output_variable) et consommées ({{var}}) par les étapes.
  */
 
-import { useState, useCallback } from 'react';
+import { useState, useCallback, useMemo } from 'react';
+import type { Step } from '../types';
+import { ACTIONS } from '../types';
 
 export type VariableType = 'text' | 'number' | 'boolean' | 'list';
 
@@ -15,11 +19,19 @@ export interface Variable {
   description?: string;
 }
 
+interface WorkflowVariable {
+  name: string;
+  producer: Step | null;
+  consumers: Step[];
+}
+
 interface Props {
   variables: Variable[];
   onVariableCreate: (data: Omit<Variable, 'id'>) => void;
   onVariableUpdate: (id: string, data: Partial<Variable>) => void;
   onVariableDelete: (id: string) => void;
+  steps?: Step[];
+  runtimeVariables?: Record<string, unknown>;
 }
 
 const TYPE_LABELS: Record<VariableType, string> = {
@@ -29,13 +41,67 @@ const TYPE_LABELS: Record<VariableType, string> = {
   list: 'Liste',
 };
 
+function getActionCategory(actionType: string): string {
+  const def = ACTIONS.find(a => a.type === actionType);
+  return def?.category || 'other';
+}
+
+function getStepLabel(step: Step): string {
+  const def = ACTIONS.find(a => a.type === step.action_type);
+  return step.label || def?.label || step.action_type;
+}
+
+function extractWorkflowVariables(steps: Step[]): WorkflowVariable[] {
+  const vars = new Map<string, WorkflowVariable>();
+
+  for (const step of steps) {
+    const p = step.parameters || {};
+
+    // Producteurs : output_variable ou variable_name
+    const outVar = (p.output_variable || p.variable_name) as string | undefined;
+    if (outVar && typeof outVar === 'string') {
+      const existing = vars.get(outVar);
+      if (existing) {
+        existing.producer = step;
+      } else {
+        vars.set(outVar, { name: outVar, producer: step, consumers: [] });
+      }
+    }
+
+    // Consommateurs : chercher {{var}} dans toutes les valeurs string des params
+    for (const val of Object.values(p)) {
+      if (typeof val === 'string') {
+        for (const match of val.matchAll(/\{\{(\w+)\}\}/g)) {
+          const varName = match[1];
+          const existing = vars.get(varName);
+          if (existing) {
+            // Eviter les doublons de consommateurs
+            if (!existing.consumers.some(c => c.id === step.id)) {
+              existing.consumers.push(step);
+            }
+          } else {
+            vars.set(varName, { name: varName, producer: null, consumers: [step] });
+          }
+        }
+      }
+    }
+  }
+
+  return Array.from(vars.values());
+}
+
 export default function VariableManager({
   variables,
   onVariableCreate,
   onVariableUpdate,
   onVariableDelete,
+  steps = [],
+  runtimeVariables = {},
 }: Props) {
   const [isDialogOpen, setIsDialogOpen] = useState(false);
+
+  // Extraire les variables du workflow depuis les étapes
+  const workflowVars = useMemo(() => extractWorkflowVariables(steps), [steps]);
   const [editingVariable, setEditingVariable] = useState<Variable | null>(null);
   const [formData, setFormData] = useState({
     name: '',
@@ -209,9 +275,57 @@ export default function VariableManager({
         </button>
       </div>
 
+      {/* Section : Variables du workflow (auto-détectées) */}
+      {workflowVars.length > 0 && (
+        <div className="workflow-vars-section">
+          <div className="workflow-vars-header">
+            <span className="wv-icon">&#x1f517;</span>
+            <span>Variables du workflow</span>
+            <span className="wv-count">{workflowVars.length}</span>
+          </div>
+          {workflowVars.map((wv) => {
+            const category = wv.producer ? getActionCategory(wv.producer.action_type) : 'other';
+            const runtimeVal = runtimeVariables[wv.name];
+            return (
+              <div key={wv.name} className="workflow-var-card">
+                <div className="var-header">
+                  <span className="var-name">{`{{${wv.name}}}`}</span>
+                  <span className={`var-type-badge type-${category}`}>{category}</span>
+                </div>
+                {wv.producer ? (
+                  <div className="var-producer">
+                    <span className="label">Produit par:</span>
+                    <span className="step-ref">{getStepLabel(wv.producer)}</span>
+                  </div>
+                ) : (
+                  <div className="var-no-producer">Pas de producteur detect&eacute;</div>
+                )}
+                {wv.consumers.length > 0 && (
+                  <div className="var-consumers">
+                    <span className="label">Utilis&eacute; par:</span>
+                    <span className="step-ref">
+                      {wv.consumers.map(c => getStepLabel(c)).join(', ')}
+                    </span>
+                  </div>
+                )}
+                {runtimeVal !== undefined && (
+                  <div className="var-runtime-value">
+                    <span className="runtime-label">Valeur:</span>
+                    {String(runtimeVal).length > 120
+                      ? String(runtimeVal).slice(0, 120) + '...'
+                      : String(runtimeVal)}
+                  </div>
+                )}
+              </div>
+            );
+          })}
+        </div>
+      )}
+
+      {/* Section : Variables manuelles */}
       {variables.length === 0 ? (
         <p className="variable-empty-message">
-          Aucune variable. Créez-en pour rendre votre workflow flexible.
+          Aucune variable manuelle.
         </p>
       ) : (
         <div className="variable-list">
diff --git a/visual_workflow_builder/frontend_v4/src/components/WorkflowValidation.tsx b/visual_workflow_builder/frontend_v4/src/components/WorkflowValidation.tsx
new file mode 100644
index 000000000..a3bfef361
--- /dev/null
+++ b/visual_workflow_builder/frontend_v4/src/components/WorkflowValidation.tsx
@@ -0,0 +1,171 @@
+import { useState } from 'react';
+import * as api from '../services/api';
+
+interface WorkflowValidationProps {
+  workflowId: string | null | undefined;
+}
+
+interface ValidationResult {
+  is_valid: boolean;
+  errors: string[];
+  warnings: string[];
+  step_count: number;
+}
+
+export default function WorkflowValidation({ workflowId }: WorkflowValidationProps) {
+  const [showModal, setShowModal] = useState(false);
+  const [loading, setLoading] = useState(false);
+  const [result, setResult] = useState<ValidationResult | null>(null);
+  const [exportPath, setExportPath] = useState<string | null>(null);
+  const [exportError, setExportError] = useState<string | null>(null);
+
+  const handleValidate = async () => {
+    if (!workflowId) return;
+    setLoading(true);
+    setResult(null);
+    setExportPath(null);
+    setExportError(null);
+    setShowModal(true);
+
+    try {
+      const data = await api.validateWorkflow(workflowId);
+      setResult(data);
+    } catch (err) {
+      setResult({
+        is_valid: false,
+        errors: [(err as Error).message],
+        warnings: [],
+        step_count: 0,
+      });
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  const handleExport = async () => {
+    if (!workflowId) return;
+    setExportError(null);
+
+    try {
+      const data = await api.exportWorkflowForTraining(workflowId);
+      setExportPath(data.export_path);
+    } catch (err) {
+      setExportError((err as Error).message);
+    }
+  };
+
+  const handleClose = () => {
+    setShowModal(false);
+    setResult(null);
+    setExportPath(null);
+    setExportError(null);
+  };
+
+  return (
+    <>
+      <button
+        className="validation-btn"
+        onClick={handleValidate}
+        disabled={!workflowId}
+        title={workflowId ? 'Valider le workflow' : 'Aucun workflow actif'}
+      >
+        <span className="validation-btn-icon">&#10003;</span>
+        <span className="validation-btn-text">Valider</span>
+      </button>
+
+      {showModal && (
+        <div className="modal-overlay" onClick={handleClose}>
+          <div className="validation-modal" onClick={(e) => e.stopPropagation()}>
+            <div className="modal-header">
+              <h4>Validation du workflow</h4>
+              <button className="btn-close" onClick={handleClose}>&times;</button>
+            </div>
+
+            <div className="modal-body">
+              {loading && (
+                <div className="validation-loading">Validation en cours...</div>
+              )}
+
+              {result && !loading && (
+                <>
+                  {/* Status */}
+                  <div className={`validation-status ${result.is_valid ? 'valid' : 'invalid'}`}>
+                    <span className="validation-status-icon">
+                      {result.is_valid ? '\u2705' : '\u274C'}
+                    </span>
+                    <span>
+                      {result.is_valid
+                        ? `Workflow valide (${result.step_count} etape${result.step_count > 1 ? 's' : ''})`
+                        : `${result.errors.length} erreur${result.errors.length > 1 ? 's' : ''} trouvee${result.errors.length > 1 ? 's' : ''}`}
+                    </span>
+                  </div>
+
+                  {/* Erreurs */}
+                  {result.errors.length > 0 && (
+                    <div className="validation-errors">
+                      <h5>Erreurs</h5>
+                      <ul>
+                        {result.errors.map((err, i) => (
+                          <li key={i}>{err}</li>
+                        ))}
+                      </ul>
+                    </div>
+                  )}
+
+                  {/* Warnings */}
+                  {result.warnings.length > 0 && (
+                    <div className="validation-warnings">
+                      <h5>Warnings</h5>
+                      <ul>
+                        {result.warnings.map((warn, i) => (
+                          <li key={i}>{warn}</li>
+                        ))}
+                      </ul>
+                    </div>
+                  )}
+
+                  {/* Export */}
+                  {result.is_valid && !exportPath && (
+                    <div className="validation-export">
+                      <button className="btn-primary" onClick={handleExport}>
+                        Exporter pour entrainement
+                      </button>
+                    </div>
+                  )}
+
+                  {/* Export error */}
+                  {exportError && (
+                    <div className="validation-errors">
+                      <h5>Erreur d'export</h5>
+                      <ul>
+                        <li>{exportError}</li>
+                      </ul>
+                    </div>
+                  )}
+
+                  {/* Export success */}
+                  {exportPath && (
+                    <div className="validation-success">
+                      <span className="validation-success-icon">&#128230;</span>
+                      <div>
+                        <strong>Export reussi</strong>
+                        <code>{exportPath}</code>
+                      </div>
+                    </div>
+                  )}
+
+                  {/* Message si invalide */}
+                  {!result.is_valid && (
+                    <div className="validation-hint">
+                      Corrigez les erreurs avant de valider.
+                    </div>
+                  )}
+                </>
+              )}
+            </div>
+          </div>
+        </div>
+      )}
+    </>
+  );
+}
diff --git a/visual_workflow_builder/frontend_v4/src/services/api.ts b/visual_workflow_builder/frontend_v4/src/services/api.ts
index 1b8c6d825..202d26c9d 100644
--- a/visual_workflow_builder/frontend_v4/src/services/api.ts
+++ b/visual_workflow_builder/frontend_v4/src/services/api.ts
@@ -165,6 +165,8 @@ export async function getExecutionStatus(): Promise<{
   is_paused: boolean;
   execution: Execution | null;
   session: AppState['session'];
+  // Variables runtime du workflow
+  variables?: Record<string, unknown>;
   // Self-healing interactif
   waiting_for_choice?: boolean;
   candidates?: Array<{
@@ -191,3 +193,20 @@ export async function submitHealingChoice(
 ): Promise<{ success: boolean; choice: unknown }> {
   return request('POST', '/execute/healing/choose', { choice });
 }
+
+// Validation & Export
+export async function validateWorkflow(workflowId: string): Promise<{
+  is_valid: boolean;
+  errors: string[];
+  warnings: string[];
+  step_count: number;
+}> {
+  return request('POST', `/workflow/${workflowId}/validate`);
+}
+
+export async function exportWorkflowForTraining(workflowId: string): Promise<{
+  export_path: string;
+  training_entry: Record<string, unknown>;
+}> {
+  return request('POST', `/workflow/${workflowId}/export-training`);
+}
diff --git a/visual_workflow_builder/frontend_v4/src/services/ollamaService.ts b/visual_workflow_builder/frontend_v4/src/services/ollamaService.ts
new file mode 100644
index 000000000..7e11318eb
--- /dev/null
+++ b/visual_workflow_builder/frontend_v4/src/services/ollamaService.ts
@@ -0,0 +1,204 @@
+/**
+ * Service Ollama - Gestion des modèles IA locaux
+ * Liste dynamique des modèles et recommandations par tâche
+ */
+
+// Base URL Ollama (localhost car Ollama tourne sur le même serveur)
+const OLLAMA_API = 'http://localhost:11434';
+
+export interface OllamaModel {
+  name: string;
+  model: string;
+  modified_at: string;
+  size: number;
+  digest: string;
+  details?: {
+    parent_model: string;
+    format: string;
+    family: string;
+    families: string[];
+    parameter_size: string;
+    quantization_level: string;
+  };
+}
+
+export interface OllamaModelInfo {
+  name: string;
+  displayName: string;
+  size: string;
+  isVision: boolean;
+  family: string;
+  parameterSize: string;
+}
+
+// Modèles connus pour être des modèles vision
+const VISION_MODEL_PATTERNS = [
+  'moondream',
+  'llava',
+  'bakllava',
+  'qwen2.5vl',
+  'qwen2-vl',
+  'qwen3-vl',
+  'granite3.2-vision',
+  'deepseek-ocr',
+  'cogvlm',
+  'minicpm-v',
+  'internvl',
+];
+
+// Recommandations par type de tâche
+export const MODEL_RECOMMENDATIONS: Record<string, {
+  vision: string[];
+  text: string[];
+  description: string;
+}> = {
+  ocr: {
+    vision: ['qwen2.5vl:7b', 'qwen2.5vl:3b', 'deepseek-ocr', 'moondream'],
+    text: [],
+    description: 'Extraction de texte depuis images/PDF scannés',
+  },
+  summarize: {
+    vision: [],
+    text: ['gpt-oss:latest', 'mistral-nemo', 'llama3.1', 'qwen2.5:7b'],
+    description: 'Résumé et synthèse de texte',
+  },
+  extract: {
+    vision: ['qwen2.5vl:7b'],
+    text: ['gpt-oss:latest', 'mistral-nemo', 'qwen2.5:7b'],
+    description: 'Extraction de données structurées',
+  },
+  classify: {
+    vision: ['moondream'],
+    text: ['mistral-nemo', 'gpt-oss:latest', 'qwen2.5:3b'],
+    description: 'Classification et catégorisation',
+  },
+  analyze: {
+    vision: ['qwen2.5vl:7b', 'qwen3-vl:8b', 'granite3.2-vision:2b'],
+    text: ['gpt-oss:latest', 'llama3.1', 'mistral-nemo'],
+    description: 'Analyse complète de document',
+  },
+  custom: {
+    vision: [],
+    text: [],
+    description: 'Tâche personnalisée - choisissez votre modèle',
+  },
+};
+
+/**
+ * Formate la taille en unité lisible
+ */
+function formatSize(bytes: number): string {
+  const gb = bytes / (1024 * 1024 * 1024);
+  if (gb >= 1) {
+    return `${gb.toFixed(1)} GB`;
+  }
+  const mb = bytes / (1024 * 1024);
+  return `${mb.toFixed(0)} MB`;
+}
+
+/**
+ * Détermine si un modèle est un modèle vision
+ */
+export function isVisionModel(modelName: string): boolean {
+  const lowerName = modelName.toLowerCase();
+  return VISION_MODEL_PATTERNS.some(pattern => lowerName.includes(pattern));
+}
+
+/**
+ * Récupère la liste des modèles Ollama disponibles
+ */
+export async function listModels(): Promise<OllamaModelInfo[]> {
+  try {
+    const response = await fetch(`${OLLAMA_API}/api/tags`);
+    if (!response.ok) {
+      throw new Error(`Erreur Ollama: ${response.status}`);
+    }
+
+    const data = await response.json();
+    const models: OllamaModel[] = data.models || [];
+
+    return models.map(m => ({
+      name: m.name,
+      displayName: m.name.split(':')[0],
+      size: formatSize(m.size),
+      isVision: isVisionModel(m.name),
+      family: m.details?.family || 'unknown',
+      parameterSize: m.details?.parameter_size || '',
+    }));
+  } catch (err) {
+    console.error('Erreur listModels:', err);
+    // Retourner une liste vide en cas d'erreur
+    return [];
+  }
+}
+
+/**
+ * Récupère les modèles recommandés pour un type de tâche
+ */
+export async function getRecommendedModels(
+  taskType: keyof typeof MODEL_RECOMMENDATIONS
+): Promise<{
+  visionModels: OllamaModelInfo[];
+  textModels: OllamaModelInfo[];
+  recommendations: typeof MODEL_RECOMMENDATIONS[typeof taskType];
+}> {
+  const allModels = await listModels();
+  const recommendations = MODEL_RECOMMENDATIONS[taskType] || MODEL_RECOMMENDATIONS.custom;
+
+  // Filtrer les modèles disponibles
+  const visionModels = allModels.filter(m => m.isVision);
+  const textModels = allModels.filter(m => !m.isVision);
+
+  // Trier par recommandation (les recommandés en premier)
+  const sortByRecommendation = (models: OllamaModelInfo[], recommended: string[]) => {
+    return [...models].sort((a, b) => {
+      const aIdx = recommended.findIndex(r => a.name.includes(r.split(':')[0]));
+      const bIdx = recommended.findIndex(r => b.name.includes(r.split(':')[0]));
+
+      if (aIdx === -1 && bIdx === -1) return 0;
+      if (aIdx === -1) return 1;
+      if (bIdx === -1) return -1;
+      return aIdx - bIdx;
+    });
+  };
+
+  return {
+    visionModels: sortByRecommendation(visionModels, recommendations.vision),
+    textModels: sortByRecommendation(textModels, recommendations.text),
+    recommendations,
+  };
+}
+
+/**
+ * Vérifie si Ollama est accessible
+ */
+export async function checkOllamaStatus(): Promise<{
+  available: boolean;
+  version?: string;
+  error?: string;
+}> {
+  try {
+    const response = await fetch(`${OLLAMA_API}/api/version`);
+    if (response.ok) {
+      const data = await response.json();
+      return { available: true, version: data.version };
+    }
+    return { available: false, error: `HTTP ${response.status}` };
+  } catch (err) {
+    return { available: false, error: (err as Error).message };
+  }
+}
+
+/**
+ * Types de tâches IA disponibles
+ */
+export const AI_TASK_TYPES = [
+  { id: 'ocr', label: 'OCR - Extraction texte', icon: '📝', needsVision: true },
+  { id: 'summarize', label: 'Résumé', icon: '📋', needsVision: false },
+  { id: 'extract', label: 'Extraction données', icon: '🔍', needsVision: false },
+  { id: 'classify', label: 'Classification', icon: '🏷️', needsVision: false },
+  { id: 'analyze', label: 'Analyse complète', icon: '🧠', needsVision: true },
+  { id: 'custom', label: 'Personnalisé', icon: '⚙️', needsVision: false },
+] as const;
+
+export type AITaskType = typeof AI_TASK_TYPES[number]['id'];
diff --git a/visual_workflow_builder/frontend_v4/src/styles.css b/visual_workflow_builder/frontend_v4/src/styles.css
index 19f7a09f3..9654c3388 100644
--- a/visual_workflow_builder/frontend_v4/src/styles.css
+++ b/visual_workflow_builder/frontend_v4/src/styles.css
@@ -43,13 +43,14 @@ body {
 
 .header {
   display: flex;
-  justify-content: space-between;
   align-items: center;
+  gap: 0.75rem;
   padding: 0 1rem;
   height: 56px;
   background: var(--primary);
   color: white;
   box-shadow: 0 2px 4px rgba(0,0,0,0.1);
+  overflow: visible;
 }
 
 .header h1 {
@@ -596,6 +597,41 @@ body {
   resize: vertical;
 }
 
+.mode-toggle-row {
+  display: flex;
+  gap: 4px;
+}
+
+.mode-btn {
+  flex: 1;
+  padding: 6px 8px;
+  border: 1px solid var(--border);
+  border-radius: 4px;
+  background: var(--bg-paper);
+  color: var(--text-secondary);
+  cursor: pointer;
+  font-size: 0.8rem;
+  transition: all 0.15s;
+}
+
+.mode-btn.active {
+  background: var(--primary);
+  color: white;
+  border-color: var(--primary);
+}
+
+.mode-btn:hover:not(.active) {
+  background: rgba(99, 102, 241, 0.1);
+}
+
+.field-hint {
+  display: block;
+  margin-top: 4px;
+  font-size: 0.75rem;
+  color: var(--text-secondary);
+  opacity: 0.7;
+}
+
 .prop-anchor {
   margin-bottom: 1rem;
 }
@@ -933,6 +969,8 @@ body {
   align-items: center;
   gap: 0.75rem;
   padding: 0.25rem;
+  margin-left: auto;
+  flex-shrink: 0;
   background: rgba(255,255,255,0.1);
   border-radius: 8px;
 }
@@ -1061,10 +1099,41 @@ body {
 .react-flow__edge-path {
   stroke: var(--border);
   stroke-width: 2;
+  cursor: pointer;
+}
+
+.react-flow__edge:hover .react-flow__edge-path {
+  stroke: var(--secondary);
+  stroke-width: 3;
 }
 
 .react-flow__edge.selected .react-flow__edge-path {
   stroke: var(--primary);
+  stroke-width: 3;
+}
+
+/* Handles de connexion visibles au survol des nœuds */
+.react-flow__handle {
+  width: 10px;
+  height: 10px;
+  background: var(--border);
+  border: 2px solid var(--bg-paper);
+  transition: all 0.15s;
+}
+
+.react-flow__handle:hover,
+.react-flow__node:hover .react-flow__handle {
+  background: var(--primary);
+  width: 12px;
+  height: 12px;
+}
+
+.react-flow__handle-connecting {
+  background: var(--primary-light);
+}
+
+.react-flow__handle-valid {
+  background: #4caf50;
 }
 
 .react-flow__controls {
@@ -2805,3 +2874,562 @@ body {
   background: var(--error);
   color: white;
 }
+
+/* ===========================================
+   AI Model Selector - Outils IA avec Ollama
+   =========================================== */
+
+.ai-model-selector {
+  margin-bottom: 1rem;
+  padding: 0.75rem;
+  background: var(--bg-sidebar);
+  border-radius: 8px;
+  border: 1px solid var(--border);
+}
+
+.ai-model-selector.loading {
+  display: flex;
+  justify-content: center;
+  align-items: center;
+  min-height: 80px;
+}
+
+.ai-model-selector .loading-spinner {
+  color: var(--text-secondary);
+  font-size: 0.85rem;
+  animation: blink 1s infinite;
+}
+
+.ai-model-selector.error {
+  border-color: var(--error);
+  background: rgba(244, 67, 54, 0.05);
+}
+
+.ai-model-selector .status-error {
+  display: flex;
+  align-items: center;
+  gap: 0.5rem;
+  color: var(--error);
+  font-weight: 500;
+  margin-bottom: 0.5rem;
+}
+
+.ai-model-selector .btn-retry {
+  width: 100%;
+  padding: 0.5rem;
+  background: var(--error);
+  color: white;
+  border: none;
+  border-radius: 4px;
+  cursor: pointer;
+  font-size: 0.85rem;
+}
+
+.ai-model-selector .task-info {
+  display: flex;
+  align-items: center;
+  gap: 0.5rem;
+  margin-bottom: 0.75rem;
+  padding-bottom: 0.5rem;
+  border-bottom: 1px solid var(--border);
+}
+
+.ai-model-selector .task-icon {
+  font-size: 1.2rem;
+}
+
+.ai-model-selector .task-description {
+  font-size: 0.8rem;
+  color: var(--text-secondary);
+  font-style: italic;
+}
+
+.ai-model-selector .model-select-container {
+  margin-bottom: 0.75rem;
+}
+
+.ai-model-selector .model-select-container label {
+  display: block;
+  font-size: 0.8rem;
+  font-weight: 600;
+  margin-bottom: 0.35rem;
+  color: var(--text-primary);
+}
+
+.ai-model-selector .model-select {
+  width: 100%;
+  padding: 0.5rem;
+  border: 1px solid var(--border);
+  border-radius: 4px;
+  font-size: 0.85rem;
+  background: var(--bg-paper);
+  cursor: pointer;
+}
+
+.ai-model-selector .model-select:focus {
+  outline: none;
+  border-color: var(--primary);
+  box-shadow: 0 0 0 3px rgba(25, 118, 210, 0.1);
+}
+
+.ai-model-selector .model-select optgroup {
+  font-weight: 600;
+  color: var(--text-primary);
+  background: var(--bg-sidebar);
+}
+
+.ai-model-selector .model-select option {
+  padding: 0.5rem;
+  font-weight: 400;
+}
+
+.ai-model-selector .model-options {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  margin-bottom: 0.5rem;
+}
+
+.ai-model-selector .checkbox-label {
+  display: flex;
+  align-items: center;
+  gap: 0.5rem;
+  font-size: 0.8rem;
+  color: var(--text-secondary);
+  cursor: pointer;
+}
+
+.ai-model-selector .checkbox-label input {
+  cursor: pointer;
+}
+
+.ai-model-selector .vision-badge {
+  font-size: 0.75rem;
+  padding: 0.2rem 0.5rem;
+  background: var(--secondary);
+  color: white;
+  border-radius: 12px;
+  font-weight: 500;
+}
+
+.ai-model-selector .selected-model-info {
+  display: flex;
+  align-items: center;
+  gap: 0.5rem;
+  padding: 0.5rem;
+  background: rgba(25, 118, 210, 0.1);
+  border-radius: 4px;
+  margin-bottom: 0.5rem;
+}
+
+.ai-model-selector .selected-model-info .label {
+  font-size: 0.75rem;
+  color: var(--text-secondary);
+}
+
+.ai-model-selector .selected-model-info .model-name {
+  font-size: 0.85rem;
+  font-weight: 600;
+  color: var(--primary);
+}
+
+.ai-model-selector .ollama-status {
+  display: flex;
+  align-items: center;
+  gap: 0.5rem;
+  padding-top: 0.5rem;
+  border-top: 1px solid var(--border);
+  font-size: 0.75rem;
+}
+
+.ai-model-selector .status-dot {
+  width: 8px;
+  height: 8px;
+  border-radius: 50%;
+}
+
+.ai-model-selector .status-dot.available {
+  background: var(--success);
+  box-shadow: 0 0 6px var(--success);
+}
+
+.ai-model-selector .status-dot.unavailable {
+  background: var(--error);
+}
+
+.ai-model-selector .status-text {
+  color: var(--text-secondary);
+  flex: 1;
+}
+
+.ai-model-selector .btn-refresh {
+  background: none;
+  border: none;
+  cursor: pointer;
+  font-size: 1rem;
+  opacity: 0.6;
+  transition: all 0.15s;
+}
+
+.ai-model-selector .btn-refresh:hover {
+  opacity: 1;
+  transform: rotate(90deg);
+}
+
+/* Section title pour les propriétés IA */
+.prop-section-title {
+  display: flex;
+  align-items: center;
+  gap: 0.5rem;
+  font-size: 0.9rem;
+  font-weight: 600;
+  color: var(--primary);
+  margin-bottom: 0.75rem;
+  padding-bottom: 0.5rem;
+  border-bottom: 2px solid var(--primary);
+}
+
+.prop-section-title .icon {
+  font-size: 1.1rem;
+}
+
+/* ===========================================
+   Workflow Variables Section
+   =========================================== */
+
+.workflow-vars-section {
+  margin-bottom: 0.75rem;
+  padding-bottom: 0.75rem;
+  border-bottom: 1px solid var(--border);
+}
+
+.workflow-vars-header {
+  display: flex;
+  align-items: center;
+  gap: 0.4rem;
+  margin-bottom: 0.5rem;
+  font-size: 0.8rem;
+  font-weight: 600;
+  color: var(--text-secondary);
+}
+
+.workflow-vars-header .wv-icon {
+  font-size: 0.9rem;
+}
+
+.workflow-vars-header .wv-count {
+  margin-left: auto;
+  font-size: 0.7rem;
+  font-weight: 500;
+  padding: 0.1rem 0.4rem;
+  background: var(--primary);
+  color: white;
+  border-radius: 10px;
+}
+
+.workflow-var-card {
+  padding: 0.5rem 0.6rem;
+  background: var(--bg-paper);
+  border: 1px solid var(--border);
+  border-radius: 6px;
+  margin-bottom: 0.4rem;
+  transition: border-color 0.15s;
+}
+
+.workflow-var-card:hover {
+  border-color: var(--primary-light);
+}
+
+.workflow-var-card .var-header {
+  display: flex;
+  align-items: center;
+  gap: 0.4rem;
+  margin-bottom: 0.3rem;
+}
+
+.workflow-var-card .var-name {
+  font-weight: 600;
+  font-size: 0.85rem;
+  color: var(--primary-dark);
+  font-family: 'Consolas', 'Monaco', monospace;
+}
+
+.workflow-var-card .var-type-badge {
+  font-size: 0.6rem;
+  padding: 0.1rem 0.35rem;
+  border-radius: 3px;
+  font-weight: 600;
+  text-transform: uppercase;
+  margin-left: auto;
+}
+
+.workflow-var-card .var-type-badge.type-ai {
+  background: var(--secondary);
+  color: white;
+}
+
+.workflow-var-card .var-type-badge.type-data {
+  background: var(--success);
+  color: white;
+}
+
+.workflow-var-card .var-type-badge.type-keyboard {
+  background: var(--primary);
+  color: white;
+}
+
+.workflow-var-card .var-type-badge.type-other {
+  background: var(--text-secondary);
+  color: white;
+}
+
+.var-producer, .var-consumers {
+  font-size: 0.75rem;
+  color: var(--text-secondary);
+  display: flex;
+  align-items: baseline;
+  gap: 0.3rem;
+  margin-bottom: 0.15rem;
+}
+
+.var-producer .label, .var-consumers .label {
+  font-weight: 500;
+  color: var(--text-secondary);
+  white-space: nowrap;
+}
+
+.var-producer .step-ref {
+  color: var(--primary);
+  font-weight: 500;
+}
+
+.var-consumers .step-ref {
+  color: var(--text-primary);
+}
+
+.var-no-producer {
+  color: var(--warning);
+  font-style: italic;
+  font-size: 0.7rem;
+}
+
+.var-runtime-value {
+  margin-top: 0.3rem;
+  padding: 0.3rem 0.4rem;
+  background: rgba(76, 175, 80, 0.08);
+  border: 1px solid rgba(76, 175, 80, 0.2);
+  border-radius: 4px;
+  font-size: 0.7rem;
+  color: var(--text-primary);
+  font-family: 'Consolas', 'Monaco', monospace;
+  max-height: 60px;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: pre-wrap;
+  word-break: break-all;
+}
+
+.var-runtime-value .runtime-label {
+  font-size: 0.65rem;
+  color: var(--success);
+  font-weight: 600;
+  font-family: inherit;
+  margin-right: 0.3rem;
+}
+
+.workflow-vars-empty {
+  font-size: 0.75rem;
+  color: var(--text-disabled);
+  font-style: italic;
+  text-align: center;
+  padding: 0.4rem;
+}
+
+.manual-vars-header {
+  display: flex;
+  align-items: center;
+  gap: 0.4rem;
+  margin-bottom: 0.5rem;
+  font-size: 0.8rem;
+  font-weight: 600;
+  color: var(--text-secondary);
+}
+
+/* ===========================================
+   Workflow Validation
+   =========================================== */
+
+.validation-btn {
+  display: flex;
+  align-items: center;
+  gap: 0.4rem;
+  padding: 0.4rem 0.75rem;
+  background: rgba(255, 255, 255, 0.15);
+  border: 1px solid rgba(255, 255, 255, 0.3);
+  border-radius: 6px;
+  color: white;
+  cursor: pointer;
+  font-size: 0.85rem;
+  font-weight: 500;
+  transition: all 0.2s;
+  flex-shrink: 0;
+}
+
+.validation-btn:hover:not(:disabled) {
+  background: rgba(255, 255, 255, 0.25);
+  border-color: rgba(255, 255, 255, 0.5);
+}
+
+.validation-btn:disabled {
+  opacity: 0.4;
+  cursor: not-allowed;
+}
+
+.validation-btn-icon {
+  font-size: 1rem;
+}
+
+.validation-modal {
+  background: var(--bg-paper);
+  border-radius: 12px;
+  width: 90%;
+  max-width: 500px;
+  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
+  overflow: hidden;
+}
+
+.validation-loading {
+  text-align: center;
+  padding: 2rem;
+  color: var(--text-secondary);
+  font-size: 0.95rem;
+}
+
+.validation-status {
+  display: flex;
+  align-items: center;
+  gap: 0.5rem;
+  padding: 0.75rem 1rem;
+  border-radius: 6px;
+  font-weight: 600;
+  font-size: 0.95rem;
+  margin-bottom: 1rem;
+}
+
+.validation-status.valid {
+  background: rgba(76, 175, 80, 0.1);
+  color: var(--success);
+  border: 1px solid rgba(76, 175, 80, 0.3);
+}
+
+.validation-status.invalid {
+  background: rgba(244, 67, 54, 0.1);
+  color: var(--error);
+  border: 1px solid rgba(244, 67, 54, 0.3);
+}
+
+.validation-status-icon {
+  font-size: 1.2rem;
+}
+
+.validation-errors {
+  margin-bottom: 1rem;
+}
+
+.validation-errors h5 {
+  color: var(--error);
+  font-size: 0.85rem;
+  margin-bottom: 0.4rem;
+}
+
+.validation-errors ul {
+  list-style: none;
+  padding: 0;
+}
+
+.validation-errors li {
+  padding: 0.4rem 0.6rem;
+  margin-bottom: 0.25rem;
+  background: rgba(244, 67, 54, 0.08);
+  border-left: 3px solid var(--error);
+  border-radius: 0 4px 4px 0;
+  font-size: 0.85rem;
+  color: var(--text-primary);
+}
+
+.validation-warnings {
+  margin-bottom: 1rem;
+}
+
+.validation-warnings h5 {
+  color: var(--warning);
+  font-size: 0.85rem;
+  margin-bottom: 0.4rem;
+}
+
+.validation-warnings ul {
+  list-style: none;
+  padding: 0;
+}
+
+.validation-warnings li {
+  padding: 0.4rem 0.6rem;
+  margin-bottom: 0.25rem;
+  background: rgba(255, 152, 0, 0.08);
+  border-left: 3px solid var(--warning);
+  border-radius: 0 4px 4px 0;
+  font-size: 0.85rem;
+  color: var(--text-primary);
+}
+
+.validation-export {
+  margin-top: 1rem;
+  text-align: center;
+}
+
+.validation-export .btn-primary {
+  padding: 0.6rem 1.5rem;
+  font-size: 0.9rem;
+}
+
+.validation-success {
+  display: flex;
+  align-items: center;
+  gap: 0.75rem;
+  padding: 0.75rem 1rem;
+  background: rgba(76, 175, 80, 0.1);
+  border: 1px solid rgba(76, 175, 80, 0.3);
+  border-radius: 6px;
+  margin-top: 1rem;
+}
+
+.validation-success-icon {
+  font-size: 1.5rem;
+}
+
+.validation-success strong {
+  display: block;
+  color: var(--success);
+  font-size: 0.9rem;
+  margin-bottom: 0.25rem;
+}
+
+.validation-success code {
+  display: block;
+  font-size: 0.8rem;
+  color: var(--text-secondary);
+  background: rgba(0, 0, 0, 0.05);
+  padding: 0.25rem 0.5rem;
+  border-radius: 4px;
+  word-break: break-all;
+}
+
+.validation-hint {
+  margin-top: 1rem;
+  padding: 0.6rem 0.75rem;
+  background: var(--bg-sidebar);
+  border-radius: 4px;
+  font-size: 0.85rem;
+  color: var(--text-secondary);
+  text-align: center;
+}
diff --git a/visual_workflow_builder/frontend_v4/src/types.ts b/visual_workflow_builder/frontend_v4/src/types.ts
index af0f4b492..b6b7527f6 100644
--- a/visual_workflow_builder/frontend_v4/src/types.ts
+++ b/visual_workflow_builder/frontend_v4/src/types.ts
@@ -40,6 +40,11 @@ export type ActionType =
   | 'loop_visual'
   | 'download_to_folder'
   | 'ai_analyze_text'
+  | 'ai_ocr'
+  | 'ai_summarize'
+  | 'ai_extract'
+  | 'ai_classify'
+  | 'ai_custom'
   | 'db_save_data'
   | 'db_read_data'
   | 'verify_element_exists'
@@ -83,7 +88,12 @@ export const ACTIONS: ActionDefinition[] = [
   { type: 'loop_visual', label: 'Boucle visuelle', icon: '🔁', category: 'logic', needsAnchor: true, params: ['max_iterations'] },
 
   // === INTELLIGENCE ARTIFICIELLE ===
-  { type: 'ai_analyze_text', label: 'Analyse IA', icon: '🤖', category: 'ai', needsAnchor: true, params: ['prompt', 'variable_name'] },
+  { type: 'ai_ocr', label: 'OCR Intelligent', icon: '📝', category: 'ai', needsAnchor: true, params: ['variable_name', 'model', 'language'] },
+  { type: 'ai_summarize', label: 'Résumé IA', icon: '📋', category: 'ai', needsAnchor: false, params: ['input_text', 'variable_name', 'model', 'max_length'] },
+  { type: 'ai_extract', label: 'Extraction IA', icon: '🔍', category: 'ai', needsAnchor: true, params: ['prompt', 'variable_name', 'model', 'output_format'] },
+  { type: 'ai_classify', label: 'Classification IA', icon: '🏷️', category: 'ai', needsAnchor: false, params: ['input_text', 'categories', 'variable_name', 'model'] },
+  { type: 'ai_analyze_text', label: 'Analyse complète', icon: '🧠', category: 'ai', needsAnchor: false, params: ['prompt', 'variable_name', 'model'] },
+  { type: 'ai_custom', label: 'IA Personnalisée', icon: '⚙️', category: 'ai', needsAnchor: false, params: ['prompt', 'input_text', 'variable_name', 'model', 'system_prompt'] },
 
   // === BASE DE DONNÉES ===
   { type: 'db_save_data', label: 'Sauvegarder en BDD', icon: '💿', category: 'data', needsAnchor: false, params: ['table', 'data'] },