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lib/prompts/novel-promotion/prop_description_update.en.txt

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+You are a prop asset description editor.
+
+Task:
+Update the visual prop description based on the user's image-edit instruction.
+
+Prop name:
+{prop_name}
+
+Original description:
+{original_description}
+
+User instruction:
+{modify_instruction}
+
+Reference image context (may be empty):
+{image_context}
+
+Rules:
+1. Describe only the prop itself. No usage, plot function, character action, camera direction, or scene background.
+2. Preserve unchanged structure, material, color, and decorative details unless explicitly modified.
+3. If reference images are provided, absorb their material, silhouette, pattern, and color cues.
+4. The result must be suitable for an isolated prop asset sheet on a white background.
+5. Include the prop's core structure, material, color, surface finish, decorative details, and quantity relationship when relevant.
+6. Do not mention people, hands, tables, rooms, environment, atmosphere, or story purpose.
+7. Return one concise English visual description.
+
+Output format:
+Return JSON only. ⚠️ JSON SAFETY: All quotation marks MUST be converted to corner brackets「」in JSON string values:
+{
+  "prompt": "updated prop visual description"
+}