diff --git a/apps/ai-game-creator-shell/src-tauri/src/agent/direct_project_history.rs b/apps/ai-game-creator-shell/src-tauri/src/agent/direct_project_history.rs
index b552a53b9..3b67e47eb 100644
--- a/apps/ai-game-creator-shell/src-tauri/src/agent/direct_project_history.rs
+++ b/apps/ai-game-creator-shell/src-tauri/src/agent/direct_project_history.rs
@@ -15,6 +15,16 @@ const DIRECT_PROJECT_INTERNAL_CONTEXT_KINDS: &[&str] = &[
     "environments.environment_context",
 ];
 
+const DIRECT_PROJECT_CONTEXTUAL_USER_TEXT_MARKERS: &[(&str, &str)] = &[
+    ("<environment_context>", "</environment_context>"),
+    ("<skill>", "</skill>"),
+    ("<user_shell_command>", "</user_shell_command>"),
+    ("<turn_aborted>", "</turn_aborted>"),
+    ("<subagent_notification>", "</subagent_notification>"),
+    ("<recommended_plugins>", "</recommended_plugins>"),
+    ("<goal_context>", "</goal_context>"),
+];
+
 pub(crate) fn is_direct_project_internal_context_item(item: &Value) -> bool {
     if matches!(
         item.get("role").and_then(Value::as_str),
@@ -22,7 +32,8 @@ pub(crate) fn is_direct_project_internal_context_item(item: &Value) -> bool {
     ) {
         return true;
     }
-    item.pointer("/internal_chat_message_metadata_passthrough/content_item_kinds")
+    if item
+        .pointer("/internal_chat_message_metadata_passthrough/content_item_kinds")
         .and_then(Value::as_array)
         .is_some_and(|kinds| {
             kinds
@@ -30,6 +41,22 @@ pub(crate) fn is_direct_project_internal_context_item(item: &Value) -> bool {
                 .filter_map(Value::as_str)
                 .any(|kind| DIRECT_PROJECT_INTERNAL_CONTEXT_KINDS.contains(&kind))
         })
+    {
+        return true;
+    }
+    item.get("content")
+        .and_then(Value::as_array)
+        .is_some_and(|parts| {
+            parts.iter().any(|part| {
+                let Some(text) = part.get("text").and_then(Value::as_str) else {
+                    return false;
+                };
+                let text = text.trim();
+                DIRECT_PROJECT_CONTEXTUAL_USER_TEXT_MARKERS
+                    .iter()
+                    .any(|(start, end)| text.starts_with(start) && text.ends_with(end))
+            })
+        })
 }
 
 fn history_path(root: &Path) -> PathBuf {
@@ -96,7 +123,9 @@ fn find_direct_project_history_item_by_id_at(
     }
 
     if !pending.is_empty() {
-        if let Some(item) = direct_project_history_item_from_line(path, &pending)? {
+        // The append path repairs an unterminated final JSONL record before
+        // writing. A duplicate scan must not reject that repairable tail.
+        if let Ok(Some(item)) = direct_project_history_item_from_line(path, &pending) {
             if item.get("id").and_then(Value::as_str) == Some(item_id) {
                 return Ok(Some(item));
             }
@@ -302,4 +331,24 @@ mod tests {
             }
         })));
     }
+
+    #[test]
+    fn filters_codex_contextual_user_item_without_passthrough_metadata() {
+        assert!(is_direct_project_internal_context_item(&json!({
+            "type": "message",
+            "role": "user",
+            "content": [{
+                "type": "input_text",
+                "text": "<environment_context>\n<cwd>/tmp/project</cwd>\n</environment_context>"
+            }]
+        })));
+        assert!(!is_direct_project_internal_context_item(&json!({
+            "type": "message",
+            "role": "user",
+            "content": [{
+                "type": "input_text",
+                "text": "请读取 <environment_context> 中的说明"
+            }]
+        })));
+    }
 }