diff --git a/internal/helpers/oa_attachment_test.go b/internal/helpers/oa_attachment_test.go
index 52d6a38c..66f1d83b 100644
--- a/internal/helpers/oa_attachment_test.go
+++ b/internal/helpers/oa_attachment_test.go
@@ -686,11 +686,9 @@ func TestCrossPlatformCoverageOAAttachmentUploadMD5Failure(t *testing.T) {
 	filePath, _ := writeOAAttachmentTempFile(t, "test.bin", "hello")
 	put := mockOAAttachmentPut(t)
 
-	original := computeFileMD5
-	computeFileMD5 = func(string) (string, error) {
+	testseam.Swap(t, &computeFileMD5, func(string) (string, error) {
 		return "", errors.New("permission denied")
-	}
-	t.Cleanup(func() { computeFileMD5 = original })
+	})
 
 	caller := &scriptedToolCaller{format: "json"}
 	_, err := executeOAAttachmentCommandCapturingOutput(t, caller,
diff --git a/skills/mono/references/products/oa/oa-form-components.md b/skills/mono/references/products/oa/oa-form-components.md
index b54408e3..7da45277 100644
--- a/skills/mono/references/products/oa/oa-form-components.md
+++ b/skills/mono/references/products/oa/oa-form-components.md
@@ -328,7 +328,6 @@
 | 流水号 | `SeqNumberField` | 由系统自动生成 |
 | OCR 文本识别 | `OcrTextField` | 需要客户端 OCR 交互 |
 | OCR 身份证识别 | `OcrIdCardField` | 需要客户端 OCR 交互 |
-| 附件控件 | `DDAttachment` | 已支持：value 需要 spaceId、fileName、fileSize、fileType、fileId，先用 `dws oa approval attachment upload --file <path>` 上传获取再组装提交 |
 
 > **部分支持的控件：** `DDPhotoField`（图片控件）**支持通过 URL 直接提交**，但不支持本地文件上传（CLI 未封装钉盘 CDN 上传流程）。若用户只有本地文件，需告知在钉钉客户端补充。详见本文 [DDPhotoField](#ddphotofield图片控件) 章节。
 
diff --git a/skills/multi/dingtalk-misc/references/oa/oa-form-components.md b/skills/multi/dingtalk-misc/references/oa/oa-form-components.md
index 2b319dcc..ab985fd9 100644
--- a/skills/multi/dingtalk-misc/references/oa/oa-form-components.md
+++ b/skills/multi/dingtalk-misc/references/oa/oa-form-components.md
@@ -328,7 +328,6 @@
 | 流水号 | `SeqNumberField` | 由系统自动生成 |
 | OCR 文本识别 | `OcrTextField` | 需要客户端 OCR 交互 |
 | OCR 身份证识别 | `OcrIdCardField` | 需要客户端 OCR 交互 |
-| 附件控件 | `DDAttachment` | 已支持：value 需要 spaceId、fileName、fileSize、fileType、fileId，先用 `dws oa approval attachment upload --file <path>` 上传获取再组装提交 |
 
 > **部分支持的控件：** `DDPhotoField`（图片控件）**支持通过 URL 直接提交**，但不支持本地文件上传（CLI 未封装钉盘 CDN 上传流程）。若用户只有本地文件，需告知在钉钉客户端补充。详见本文 [DDPhotoField](#ddphotofield图片控件) 章节。