diff --git a/apps/ai-game-creator-shell/src-tauri/src/agent/runtime_driver/entrypoints.rs b/apps/ai-game-creator-shell/src-tauri/src/agent/runtime_driver/entrypoints.rs
index b3aefc508..282563633 100644
--- a/apps/ai-game-creator-shell/src-tauri/src/agent/runtime_driver/entrypoints.rs
+++ b/apps/ai-game-creator-shell/src-tauri/src/agent/runtime_driver/entrypoints.rs
@@ -93,6 +93,8 @@ impl DirectGameCreatorTurnUpdateEmitter {
                     | "controlled-tool"
                     | "web-search"
                     | "context-compaction"
+                    | "host-review"
+                    | "error-feedback"
                     | "response-finalization"
                     | "none"
             )
@@ -102,11 +104,7 @@ impl DirectGameCreatorTurnUpdateEmitter {
             return;
         }
         let sequence = self.sequence.fetch_add(1, Ordering::AcqRel) + 1;
-        let updated_at = SystemTime::now()
-            .duration_since(UNIX_EPOCH)
-            .unwrap_or_default()
-            .as_millis()
-            .min(u64::MAX as u128) as u64;
+        let updated_at = crate::agent::direct_now_ms();
         update_active_turn(
             &self.thread_id,
             &self.turn_id,
@@ -936,3 +934,33 @@ pub(crate) fn read_game_creator_agent_runtimes_at(
         .map(|agent_id| read_game_creator_agent_runtime_at(root, &agent_id))
         .collect()
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    /// DirectRuntime 实际传过的活动值必须都在 `emit` 白名单里：漏一个会在 debug 构建 panic、
+    /// 在 release 构建静默丢掉整次进度回填（首页「运行中的项目」不再随这一轮更新）。
+    #[test]
+    fn emit_accepts_every_activity_the_direct_runtime_passes() {
+        let root = std::env::temp_dir().join("agc-emit-activity-guard");
+        let emitter = DirectGameCreatorTurnUpdateEmitter::new(&root, "turn-guard".to_string());
+        for activity in [
+            "request-accepted",
+            "preparing",
+            "file-read",
+            "file-write",
+            "game-verify",
+            "command-exec",
+            "controlled-tool",
+            "web-search",
+            "context-compaction",
+            "host-review",
+            "error-feedback",
+            "response-finalization",
+            "none",
+        ] {
+            emitter.emit("running", Some(activity));
+        }
+    }
+}
diff --git a/docs/technical/【技术方案】GameAgent对话工具调用卡片-2026-09-14.md b/docs/technical/【技术方案】GameAgent对话工具调用卡片-2026-09-14.md
index 0b8b2991f..b47f28b1f 100644
--- a/docs/technical/【技术方案】GameAgent对话工具调用卡片-2026-09-14.md
+++ b/docs/technical/【技术方案】GameAgent对话工具调用卡片-2026-09-14.md
@@ -46,9 +46,11 @@
 
 ## 背景与现状（2026-09-14 立项时点）
 
+> 以下记录立项时点的现状，用来解释这次改造的动机；其中「工具调用不留痕」「没有结构化工具调用」等结论都已被后续实现与 2026-09-16 修订取代，**当前状态以文首修订与 ADR 为准**。
+
 - 数据来源：Codex app-server 会推 `item/started` / `item/completed`，item 里带完整信息（`commandExecution.command`、`fileChange.changes[].path` 等）。
 - 现状投影：`apps/ai-game-creator-shell/src-tauri/src/agent/codex_app_server.rs` 的 `direct_codex_item_intermediate_text()`（约 791 行）把 item **压成一行中文文本**（`正在执行命令：xxx` / `正在写入文件：xxx`），经 `DirectCodexTurnObservation::IntermediateText` 下发。
-- 前端事件：`GameCreatorDirectTurnUpdateEvent`（`src/app/types.ts:1090`）只有 `projectPath / turnId / sequence / status / activity / accumulatedText / updatedAt`，**没有结构化工具调用**。
+- 前端事件：`GameCreatorDirectTurnUpdateEvent`（该事件已随 issue #553 删除）只有 `projectPath / turnId / sequence / status / activity / accumulatedText / updatedAt`，**没有结构化工具调用**。
 - 历史持久化：`.agent/conversations/project.jsonl` 现在只写 message 条目（实测 61 条全是 message），工具调用不留痕。
 - 历史回读：`read_direct_project_chat_history_at()`（`direct_project_history.rs:575`）只把 `role ∈ {user, assistant}` 且有文本的条目投影成 `LocalConversationMessageRecord`，**形状上装不下工具调用**。
 - 结论：要做成卡片必须同时改「采集 → 传输 → 持久化 → 回读 → 渲染」五段，纯前端做不出来。