diff --git a/visual_workflow_builder/frontend_v4/src/components/ToolPalette.tsx b/visual_workflow_builder/frontend_v4/src/components/ToolPalette.tsx
index 79532cbb1..c4622e6c1 100644
--- a/visual_workflow_builder/frontend_v4/src/components/ToolPalette.tsx
+++ b/visual_workflow_builder/frontend_v4/src/components/ToolPalette.tsx
@@ -54,11 +54,11 @@ export default function ToolPalette() {
                       className="tool-item"
                       draggable
                       onDragStart={(e) => onDragStart(e, action.type)}
-                      title={action.label}
+                      title={`${action.label}\n\n${action.description}${action.needsAnchor ? '\n\n🎯 Nécessite une ancre visuelle' : ''}${action.params.length > 0 ? '\n\nParamètres : ' + action.params.map(p => p.name).join(', ') : ''}`}
                     >
                       <span className="tool-icon">{action.icon}</span>
                       <span className="tool-label">{action.label}</span>
-                      {action.needsAnchor && <span className="tool-anchor-badge">🎯</span>}
+                      {action.needsAnchor && <span className="tool-anchor-badge" title="Nécessite de viser un élément à l'écran">🎯</span>}
                     </div>
                   ))}
                 </div>