加了一堆模型和一堆功能

art-agent/backend/app/agent/tools.py

@@ -11,6 +11,8 @@ TOOL_DEFINITIONS = [
             "description": (
                 "根据文字描述生成图片。prompt 必须是英文。"
                 "如果用户提供了参考图，会自动传入 ref_image_url 参数。"
+                "若当前生图模型为 Stable Diffusion XL，可在正提示后单独一行写 ---NEGATIVE--- 再写负向提示；"
+                "不传则服务端会使用该模型的默认负向词。"
             ),
             "parameters": {
                 "type": "object",
@@ -37,7 +39,7 @@ TOOL_DEFINITIONS = [
 async def execute_tool(
     tool_name: str,
     arguments: dict,
-    ref_image_url: str | None = None,
+    ref_image_urls: list[str] | None = None,
     image_model: str | None = None,
 ) -> dict:
     """执行工具调用，返回结果。"""
@@ -47,7 +49,7 @@ async def execute_tool(
         result = await generate_images(
             prompt=prompt,
             num_images=num_images,
-            ref_image_url=ref_image_url,
+            ref_image_urls=ref_image_urls,
             model_id=image_model,
         )
         valid_urls = [u for u in result.urls if not u.startswith("[")]
@@ -57,6 +59,8 @@ async def execute_tool(
             "images": valid_urls,
             "errors": errors,
             "prompt_used": prompt,
+            "effective_prompt": result.effective_prompt,
+            "negative_prompt": result.negative_prompt,
             "model_name": result.model_name,
             "model_id": result.model_id,
         }