diff --git a/src/app/actions/entities.ts b/src/app/actions/entities.ts
index d4f2797..80d4734 100644
--- a/src/app/actions/entities.ts
+++ b/src/app/actions/entities.ts
@@ -28,6 +28,8 @@ function extractCleanData(entity: string, formData: FormData): Record<string, an
   const numericKeys = new Set(fields.filter(f => f.type === 'number').map(f => f.name));
   const booleanKeys = new Set(fields.filter(f => f.type === 'boolean').map(f => f.name));
 
+  const textKeys = new Set(fields.filter(f => f.type === 'text' || f.type === 'url' || f.type === 'select').map(f => f.name));
+
   const data: Record<string, any> = {};
 
   for (const [key, value] of formData.entries()) {
@@ -54,6 +56,12 @@ function extractCleanData(entity: string, formData: FormData): Record<string, an
     // Omitir strings vacíos en campos opcionales para evitar errores de Appwrite
     if (strVal === '' && !requiredKeys.has(key)) continue;
 
+    // Truncar genéricamente todos los campos de texto/url a 255 caracteres para prevenir desbordamientos
+    if (textKeys.has(key)) {
+      data[key] = strVal.substring(0, 255);
+      continue;
+    }
+
     data[key] = strVal;
   }
 
@@ -62,6 +70,27 @@ function extractCleanData(entity: string, formData: FormData): Record<string, an
     data.tipo = 'imagen';
   }
 
+  // Enforce length constraints to prevent Appwrite validation errors
+  if (data.titulo && typeof data.titulo === 'string') {
+    data.titulo = data.titulo.substring(0, 250);
+  }
+
+  if (data.slug && typeof data.slug === 'string') {
+    data.slug = data.slug.substring(0, 100);
+  }
+
+  if (data.resumen_redes && typeof data.resumen_redes === 'string') {
+    data.resumen_redes = data.resumen_redes.substring(0, 500);
+  }
+
+  if (data.seo_titulo && typeof data.seo_titulo === 'string') {
+    data.seo_titulo = data.seo_titulo.substring(0, 60);
+  }
+  
+  if (data.seo_descripcion && typeof data.seo_descripcion === 'string') {
+    data.seo_descripcion = data.seo_descripcion.substring(0, 160);
+  }
+
   // Asegurar atributo requerido "tipo" para la colección posts
   if (entity === 'posts' && !data.tipo) {
     data.tipo = 'noticia';
diff --git a/src/components/dashboard/EntityForm.tsx b/src/components/dashboard/EntityForm.tsx
index b8c564e..d40c975 100644
--- a/src/components/dashboard/EntityForm.tsx
+++ b/src/components/dashboard/EntityForm.tsx
@@ -239,6 +239,7 @@ export const EntityForm = ({
                                     defaultValue={defaultValue}
                                     onChange={(e) => setTitle(e.target.value)}
                                     placeholder={`Nombre de ${field.label}...`}
+                                    maxLength={250}
                                     className="w-full bg-transparent border-b-2 border-slate-800 py-2 text-2xl font-bold text-white focus:outline-none focus:border-cyan-500 transition-all placeholder:text-slate-700" 
                                 />
                             ) : field.type === 'textarea' ? (
@@ -288,7 +289,14 @@ export const EntityForm = ({
                                     <option value="false">No (Inactivo)</option>
                                 </select>
                             ) : (
-                                <input type={field.type === 'number' ? 'number' : 'text'} name={field.name} defaultValue={defaultValue} required={field.required} className="w-full bg-slate-950 border border-slate-800 rounded-xl px-5 py-3 text-sm text-white focus:outline-none focus:border-cyan-500 transition-all" />
+                                <input 
+                                    type={field.type === 'number' ? 'number' : field.type === 'url' ? 'url' : 'text'} 
+                                    name={field.name} 
+                                    defaultValue={defaultValue} 
+                                    required={field.required} 
+                                    maxLength={field.type !== 'number' ? 255 : undefined}
+                                    className="w-full bg-slate-950 border border-slate-800 rounded-xl px-5 py-3 text-sm text-white focus:outline-none focus:border-cyan-500 transition-all" 
+                                />
                             )}
                         </div>
                     );
diff --git a/src/components/publications/PublicationLayout.tsx b/src/components/publications/PublicationLayout.tsx
index b8a4cf7..dbc9fa2 100644
--- a/src/components/publications/PublicationLayout.tsx
+++ b/src/components/publications/PublicationLayout.tsx
@@ -240,6 +240,7 @@ export const PublicationLayout: React.FC<PublicationLayoutProps> = ({
                     onChange={(e) => setTitulo(e.target.value)}
                     placeholder="Escribe un título llamativo..."
                     required
+                    maxLength={250}
                     className={inputClass}
                   />
                 </FieldWrapper>
@@ -259,6 +260,7 @@ export const PublicationLayout: React.FC<PublicationLayoutProps> = ({
                       onChange={(e) => { setSlug(e.target.value); setIsAutoSlug(false); }}
                       placeholder="url-de-la-publicacion"
                       required
+                      maxLength={100}
                       className={`${inputClass} font-mono`}
                     />
                     <button