diff --git a/apps/ai-game-creator-shell/src-tauri/src/agent/direct_codex_user_item/validation.rs b/apps/ai-game-creator-shell/src-tauri/src/agent/direct_codex_user_item/validation.rs
index 5e94adf2f..5f352dcc6 100644
--- a/apps/ai-game-creator-shell/src-tauri/src/agent/direct_codex_user_item/validation.rs
+++ b/apps/ai-game-creator-shell/src-tauri/src/agent/direct_codex_user_item/validation.rs
@@ -14,7 +14,7 @@ pub(crate) const MAX_DIRECT_CODEX_REFERENCES: usize = 32;
 pub(crate) fn validate_direct_codex_user_item(
     root: &Path,
     item: &DirectCodexUserItem,
-) -> Result<(), String> {
+) -> Result<GameCreationAppManifest, String> {
     let DirectCodexUserItem::Message(message) = item;
     if !matches!(message.role, DirectCodexUserRole::User) {
         return Err("DirectProject 只接受 user message item".to_string());
@@ -98,7 +98,7 @@ pub(crate) fn validate_direct_codex_user_item(
     if reference_count > MAX_DIRECT_CODEX_REFERENCES {
         return Err(format!("一次最多引用 {MAX_DIRECT_CODEX_REFERENCES} 个素材"));
     }
-    Ok(())
+    Ok(manifest)
 }
 
 /// 整条 content 是否还有有效输入：任何一段非空白文本、或任何一个非文本 part 都算。
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 a9621a223..e180bd4c8 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
@@ -178,6 +178,23 @@ pub(crate) fn direct_codex_user_item_to_codex_turn_input(
                     "text": runtime_region_summary(reference),
                 }));
             }
+            DirectCodexUserContentPart::AgcAttachmentReference(reference) => {
+                let mut summary = format!(
+                    "[附件：名称={}；类型={}；大小={} 字节",
+                    reference.name.trim(),
+                    reference.media_type.trim(),
+                    reference.size
+                );
+                if !reference.local_path.trim().is_empty() {
+                    summary.push_str(&format!("；项目路径={}", reference.local_path.trim()));
+                }
+                summary.push_str(&format!("；状态={}", reference.status.trim()));
+                summary.push(']');
+                input.push(serde_json::json!({
+                    "type": "text",
+                    "text": summary,
+                }));
+            }
         }
     }
     Ok(Value::Array(input))
diff --git a/apps/ai-game-creator-shell/src/features/project-workspace/ResourceReferenceInput.tsx b/apps/ai-game-creator-shell/src/features/project-workspace/ResourceReferenceInput.tsx
index 82077a3cf..123cafc08 100644
--- a/apps/ai-game-creator-shell/src/features/project-workspace/ResourceReferenceInput.tsx
+++ b/apps/ai-game-creator-shell/src/features/project-workspace/ResourceReferenceInput.tsx
@@ -192,15 +192,6 @@ class SkillMentionOption extends MenuOption {
   }
 }
 
-const BUILTIN_SKILL_REFERENCES: SkillReference[] = [
-  'agc-browser-playtest',
-  'agc-client-projection',
-  'agc-game-production-workflow',
-  'agc-project-structure',
-  'agc-web-game-development',
-  'taonier-art-assets',
-].map((name) => ({ type: 'skill', name }));
-
 /**
  * 编辑器节点 → canonical content part，**原样透传**：段落分隔（root 子节点之间补的
  * `\n`）、软换行、chip 后的分隔空格都各自成 part，不做空白过滤、不与相邻 part 合并。
@@ -265,8 +256,12 @@ function readDraftFromNodes(): ChatComposerDraft {
   const projection = readDraftProjectionFromNodes();
   const labels = new Map(
     projection.references.map((reference) => [
-      reference.type === 'resource' ? reference.resourceId : reference.label,
-      `@${reference.label}`,
+      reference.type === 'resource'
+        ? reference.resourceId
+        : reference.type === 'skill'
+          ? reference.name
+          : reference.label,
+      reference.type === 'skill' ? `$${reference.name}` : `@${reference.label}`,
     ]),
   );
   const text = projection.content
@@ -277,7 +272,7 @@ function readDraftFromNodes(): ChatComposerDraft {
           ? (labels.get(part.resourceId) ?? `@${part.resourceId}`)
           : part.type === 'agc_runtime_region_reference'
             ? `@${part.label}`
-            : `@${part.name}`,
+            : `$${part.name}`,
     )
     .join('')
     .trim();
@@ -872,13 +867,13 @@ function ResourceReferenceEditor({
     const currentRefKey = current.references
       ?.map(
         (reference) =>
-          `${reference.type}:${reference.type === 'resource' ? reference.resourceId : reference.label}`,
+          `${reference.type}:${reference.type === 'resource' ? reference.resourceId : reference.type === 'skill' ? reference.name : reference.label}`,
       )
       .join('|');
     const desiredRefKey = desiredRefs
       .map(
         (reference) =>
-          `${reference.type}:${reference.type === 'resource' ? reference.resourceId : reference.label}`,
+          `${reference.type}:${reference.type === 'resource' ? reference.resourceId : reference.type === 'skill' ? reference.name : reference.label}`,
       )
       .join('|');
     if (current.text === desiredValue && currentRefKey === desiredRefKey)