diff --git a/apps/ai-game-creator-shell/src-tauri/src/agent/direct_codex_user_item/wire.rs b/apps/ai-game-creator-shell/src-tauri/src/agent/direct_codex_user_item/wire.rs
index 0fdc0ad90..70134ba17 100644
--- a/apps/ai-game-creator-shell/src-tauri/src/agent/direct_codex_user_item/wire.rs
+++ b/apps/ai-game-creator-shell/src-tauri/src/agent/direct_codex_user_item/wire.rs
@@ -129,7 +129,7 @@ pub(crate) fn direct_codex_user_item_to_codex_turn_input(
     item: &DirectCodexUserItem,
     skill_roots: &[std::path::PathBuf],
 ) -> Result<Value, String> {
-    validate_direct_codex_user_item(root, item)?;
+    let manifest = validate_direct_codex_user_item(root, item)?;
     let DirectCodexUserItem::Message(message) = item;
     let mut input = Vec::with_capacity(message.content.len());
     for part in &message.content {
@@ -138,9 +138,9 @@ pub(crate) fn direct_codex_user_item_to_codex_turn_input(
                 input.push(serde_json::json!({ "type": "text", "text": text }));
             }
             DirectCodexUserContentPart::AgcResourceReference { resource_id } => {
-                let asset = read_manifest_for_project(root)?
+                let asset = manifest
                     .assets
-                    .into_iter()
+                    .iter()
                     .find(|asset| asset.id == resource_id.trim())
                     .ok_or_else(|| "引用的素材已不存在，请移除后重新选择".to_string())?;
                 let path = sanitize_attachment_local_path(&asset.local_path)