diff --git a/src/games/storywriter/utils/prompt.ts b/src/games/storywriter/utils/prompt.ts
index dbf304d..f26d401 100644
--- a/src/games/storywriter/utils/prompt.ts
+++ b/src/games/storywriter/utils/prompt.ts
@@ -284,8 +284,19 @@ namespace Prompt {
         return lines.join('\n');
     }
 
+    const objectUrls = new Map<string, string>();
     function stripDataUrlImages(text: string): string {
-        return text.replace(/!\[([^\]]*)\]\(data:[^)]+\)/g, (_, alt) => `[image: ${alt}]`);
+        return text.replace(/!\[([^\]]*)\]\((data:([^;]*);base64,[^)]+)\)/g, (_, alt, dataUrl, type) => {
+            let blobUrl = objectUrls.get(dataUrl);
+            if (!blobUrl) {
+                const b64 = dataUrl.replace(/^data:[^;]*;base64,/, '');
+                const imageData = atob(b64);
+                const blob = new Blob([imageData], { type });
+                blobUrl = URL.createObjectURL(blob);
+                objectUrls.set(dataUrl, blobUrl);
+            }
+            return `![${alt}](${blobUrl})`;
+        });
     }
 
     export function substituteVars(state: AppState, text: string): string {
diff --git a/src/games/storywriter/utils/tools.ts b/src/games/storywriter/utils/tools.ts
index bb62720..232274a 100644
--- a/src/games/storywriter/utils/tools.ts
+++ b/src/games/storywriter/utils/tools.ts
@@ -478,14 +478,14 @@ export namespace Tools {
                 if (!appState.imageModel) {
                     return 'Error: No image model configured';
                 }
-                const { width: defaultWidth, height: defaultHeight, negative_prompt, sampler_name } = appState.imageGenerationSettings;
+                const { width, height, negative_prompt, sampler_name } = appState.imageGenerationSettings;
                 const response = await LLM.generateImage(appState.connection, {
                     model: appState.imageModel.id,
                     prompt: args.prompt,
                     output_format: 'jpeg',
                     image_settings: {
-                        width: args.width ?? defaultWidth,
-                        height: args.height ?? defaultHeight,
+                        width,
+                        height,
                         negative_prompt: negative_prompt || undefined,
                         sampler_name: sampler_name || undefined,
                     },
@@ -502,8 +502,6 @@ export namespace Tools {
             description: 'Generate an image from a text prompt. Format prompt as tags: masterpiece, best quality, ...',
             parameters: Type.Object({
                 prompt: Type.String({ description: 'The image generation prompt' }),
-                width: Type.Optional(Type.Integer({ description: 'Image width in pixels' })),
-                height: Type.Optional(Type.Integer({ description: 'Image height in pixels' })),
             }),
         }),
     };