diff --git a/controllers/contextController.js b/controllers/contextController.js
index a145e4b..47ae2fc 100644
--- a/controllers/contextController.js
+++ b/controllers/contextController.js
@@ -228,10 +228,10 @@ class ContextController {
       const { id } = req.params;
       const { image } = req.body;
 
-      if (!image || !Array.isArray(image) || image.length === 0) {
+      if (!image || typeof image !== 'string' || image.trim().length === 0) {
         return res.status(400).json({
           success: false,
-          message: 'Image must be a non-empty array of URLs'
+          message: 'Image must be a non-empty string (URL)'
         });
       }
 
diff --git a/models/Context.js b/models/Context.js
index 48d3b12..c45851d 100644
--- a/models/Context.js
+++ b/models/Context.js
@@ -45,7 +45,7 @@ const Context = sequelize.define('Context', {
   },
   image: {
     type: DataTypes.TEXT,
-    comment: 'Array of image URLs'
+    comment: 'Single image URL string'
   },
   type_context: {
     type: DataTypes.STRING(50),
diff --git a/public/contexts.html b/public/contexts.html
index acc8f95..da2a631 100644
--- a/public/contexts.html
+++ b/public/contexts.html
@@ -402,9 +402,9 @@
                     <input type="text" id="imagesUuid" placeholder="Paste UUID or click from list above">
                 </div>
                 <div class="form-group">
-                    <label>Image URLs * (JSON Array)</label>
-                    <textarea id="imageUrls" placeholder='["https://example.com/image1.jpg", "https://example.com/image2.jpg"]'></textarea>
-                    <div class="small-note">Must be valid JSON array of URLs</div>
+                    <label>Image URL * (String)</label>
+                    <input type="text" id="imageUrls" placeholder="https://example.com/image.jpg">
+                    <div class="small-note">Enter a single image URL</div>
                 </div>
                 <button onclick="addImages()">Add Images (Status 3 → 4)</button>
                 <div class="result" id="imagesResult"></div>
@@ -647,22 +647,18 @@
             const headers = getHeaders();
 
             const uuid = document.getElementById('imagesUuid').value.trim();
-            const imageUrlsStr = document.getElementById('imageUrls').value.trim();
+            const imageUrl = document.getElementById('imageUrls').value.trim();
 
-            if (!uuid || !imageUrlsStr) {
-                showResult('imagesResult', { error: 'UUID and image URLs are required' }, false);
+            if (!uuid || !imageUrl) {
+                showResult('imagesResult', { error: 'UUID and image URL are required' }, false);
                 return;
             }
 
             try {
-                const image = JSON.parse(imageUrlsStr);
-                if (!Array.isArray(image)) {
-                    throw new Error('Image URLs must be an array');
-                }
                 const response = await fetch(`${API_BASE}/${uuid}/add-images`, {
                     method: 'POST',
                     headers: headers,
-                    body: JSON.stringify({ image })
+                    body: JSON.stringify({ image: imageUrl })
                 });
                 const data = await response.json();
                 showResult('imagesResult', data, response.ok);