diff --git a/skills/research/SKILL.md b/skills/research/SKILL.md
index 4fb7d88..37ed79d 100644
--- a/skills/research/SKILL.md
+++ b/skills/research/SKILL.md
@@ -35,6 +35,7 @@ description: 对目标话题进行初步调研，生成调研outline。用于学
 **fields.yaml**（字段定义）：
 - 字段分类和定义
 - 每个字段的name、description、detail_level
+- uncertain: 不确定字段列表（保留字段，deep阶段自动填充）
 
 ### Step 5: 输出并确认
 - 创建目录: `./{topic_slug}/`
diff --git a/skills/research/deep/SKILL.md b/skills/research/deep/SKILL.md
index 9c14382..bdb7ca7 100644
--- a/skills/research/deep/SKILL.md
+++ b/skills/research/deep/SKILL.md
@@ -24,6 +24,7 @@ allowed-tools: Bash, Read, Write, Glob, WebSearch, Task
 - **硬约束**：仅传入item相关信息和输出路径
 - **硬约束**：agent必须自行读取 `{topic}/fields.yaml` 获取字段定义
 - **硬约束**：禁止在prompt中直接嵌入字段定义
+- **硬约束**：不确定的字段值标注【不确定】，并在JSON末尾uncertain数组中列出该字段名
 - 输出结构化JSON到output_dir
 
 ### Step 4: 等待与监控