diff --git a/internal/acp/orchestrator.go b/internal/acp/orchestrator.go
index 016ac17..6337295 100644
--- a/internal/acp/orchestrator.go
+++ b/internal/acp/orchestrator.go
@@ -1025,17 +1025,28 @@ func openClawNonEmptyPathAttachments(params map[string]any) []any {
 	if len(rawAttachments) == 0 {
 		return nil
 	}
+	inlineAttachmentNames := map[string]bool{}
+	for _, raw := range shared.ListArg(params, "inlineAttachments") {
+		name := strings.TrimSpace(shared.StringArg(shared.AsMap(raw), "name", ""))
+		if name != "" {
+			inlineAttachmentNames[name] = true
+		}
+	}
 	attachments := make([]any, 0, len(rawAttachments))
 	for _, raw := range rawAttachments {
 		attachment := shared.AsMap(raw)
 		if len(attachment) == 0 {
 			continue
 		}
+		name := strings.TrimSpace(shared.StringArg(attachment, "name", "attachment"))
+		if inlineAttachmentNames[name] {
+			continue
+		}
 		if strings.TrimSpace(shared.StringArg(attachment, "path", "")) == "" {
 			continue
 		}
 		attachments = append(attachments, map[string]any{
-			"name":        strings.TrimSpace(shared.StringArg(attachment, "name", "attachment")),
+			"name":        name,
 			"description": strings.TrimSpace(shared.StringArg(attachment, "description", "")),
 			"path":        strings.TrimSpace(shared.StringArg(attachment, "path", "")),
 		})
diff --git a/internal/acp/routing_test.go b/internal/acp/routing_test.go
index 1e595a5..83f5da3 100644
--- a/internal/acp/routing_test.go
+++ b/internal/acp/routing_test.go
@@ -2549,6 +2549,13 @@ func TestOpenClawChatSendParamsVideoInlineImagesUsePromptPathsOnly(t *testing.T)
 		"threadId":         "thread-video-attachments",
 		"taskPrompt":       "制作视频",
 		"workingDirectory": workspace,
+		"attachments": []any{
+			map[string]any{
+				"name":        "01-single-machine.png",
+				"description": "image/png",
+				"path":        "/Users/shenlan/Pictures/01-single-machine.png",
+			},
+		},
 		"inlineAttachments": []any{
 			map[string]any{
 				"name":     "01-single-machine.png",
@@ -2599,6 +2606,9 @@ func TestOpenClawChatSendParamsVideoInlineImagesUsePromptPathsOnly(t *testing.T)
 	if !strings.Contains(message, "制作视频") {
 		t.Fatalf("expected message to preserve video prompt, got %q", message)
 	}
+	if strings.Contains(message, "/Users/shenlan/Pictures/01-single-machine.png") {
+		t.Fatalf("OpenClaw message must use materialized remote paths, got %q", message)
+	}
 }
 
 func TestOpenClawChatSendParamsMaterializesInlineAttachmentsInRemoteHint(t *testing.T) {