diff --git a/apps/ai-game-creator-shell/src-tauri/src/agent/runtime_protocol/planning_approval.rs b/apps/ai-game-creator-shell/src-tauri/src/agent/runtime_protocol/planning_approval.rs
index 6e1a29391..691ddb02d 100644
--- a/apps/ai-game-creator-shell/src-tauri/src/agent/runtime_protocol/planning_approval.rs
+++ b/apps/ai-game-creator-shell/src-tauri/src/agent/runtime_protocol/planning_approval.rs
@@ -83,18 +83,24 @@ fn approval_observation(receipt: &PlanGddApprovalV1) -> AgentRuntimeToolObservat
 fn append_plan_gdd_revision_message(
     root: &Path,
     receipt: &PlanGddApprovalV1,
+    receipt_gdd: &PlanGddV1,
 ) -> Result<(), String> {
     let label = if receipt.action == "reject" {
         "退回"
     } else {
         "修改"
     };
+    let supervisor_session_id = resolve_game_creator_agent_runtime_session_id_for_run_at(
+        root,
+        GAME_CREATOR_PROJECT_SUPERVISOR_AGENT_ID,
+        &receipt_gdd.root_run_id,
+    )?;
     append_local_conversation_message_for_session_idempotent_at(
         root,
         Some(GAME_CREATOR_PROJECT_SUPERVISOR_AGENT_ID),
-        // 落在 Supervisor 当前活动会话。delivery 上的 parentSessionId 是委派发出时
-        // 的快照，不保证仍是可写的活动会话。
-        None,
+        // receipt 的 rootRun 所属 Supervisor task 才是这条用户意见的历史归属；
+        // 不能在 recovery 重放时按当前 active session 重新路由到别的会话。
+        Some(&supervisor_session_id),
         LocalConversationMessage {
             role: "user".to_string(),
             content: format!(
@@ -1271,7 +1277,7 @@ fn project_receipt_locked(
             note_plan_gdd_projection_gap(root, receipt, "delivery-revision-mark", &error);
             recovery_pending = true;
         }
-        if let Err(error) = append_plan_gdd_revision_message(root, receipt) {
+        if let Err(error) = append_plan_gdd_revision_message(root, receipt, receipt_gdd) {
             note_plan_gdd_projection_gap(root, receipt, "delivery-revision-message", &error);
             recovery_pending = true;
         }
diff --git a/apps/ai-game-creator-shell/src-tauri/src/project/conversation.rs b/apps/ai-game-creator-shell/src-tauri/src/project/conversation.rs
index 3e40c51b4..12eb9f5d0 100644
--- a/apps/ai-game-creator-shell/src-tauri/src/project/conversation.rs
+++ b/apps/ai-game-creator-shell/src-tauri/src/project/conversation.rs
@@ -1152,12 +1152,6 @@ fn append_local_conversation_message_for_session_internal_at(
             )
         }
     };
-    if archived {
-        return Err(format!(
-            "Agent Session 已归档，只能读取：{}",
-            normalized_session_id.as_deref().unwrap_or_default()
-        ));
-    }
     let role = role.trim();
     if !matches!(role, "user" | "assistant" | "tool") {
         return Err("对话角色必须是 user、assistant 或 tool".to_string());
@@ -1226,6 +1220,12 @@ fn append_local_conversation_message_for_session_internal_at(
         }
         false
     } else {
+        if archived {
+            return Err(format!(
+                "Agent Session 已归档，只能读取：{}",
+                normalized_session_id.as_deref().unwrap_or_default()
+            ));
+        }
         append_jsonl_line_unlocked(&path, &line, "对话记录")?;
         true
     };
diff --git a/docs/project-memory/shared-memory/decision-log.md b/docs/project-memory/shared-memory/decision-log.md
index 95d15253c..277195298 100644
--- a/docs/project-memory/shared-memory/decision-log.md
+++ b/docs/project-memory/shared-memory/decision-log.md
@@ -7792,6 +7792,7 @@ CI 上 `background_agent_runtime_recovers_stale_running_before_pending_task` 在
 - 现象：GDD“修改”已成功生成下一版本且当前 pending 身份正确，但 hydrate 持续返回 `recoveryPending=true`，审批卡显示“审批状态正在恢复”。
 - 原因：恢复扫描会重放全部历史 approval receipt；旧版本 receipt 仍拿当前单例 approval pending 做 identity 比对。修改后当前 pending 已属于新版本，旧 receipt 的 identity 不同是正常状态，却被误记为投影缺口。
 - 决策：receipt 的 index、Markdown、audit、submit observation、session 等投影继续允许全量恢复；approval pending 只由 lineage 最新 GDD 的 receipt 读取、更新和清理。历史 receipt 不得检查或改写当前 pending，也不得因此提升 `recoveryPending`。
+- 审批意见消息按 receipt 的 `rootRunId` 解析到原 Supervisor task 所属会话恢复；不会按当前 active session 重新路由。已存在于归档会话的幂等消息允许重放且不新增消息，缺失消息仍保持恢复失败，不静默写入其他会话。
 - 验证：沿用现有审批恢复与 planning submit 定向测试；未新增独立测试，避免为非代表性 fixture 引入额外状态构造。
 
 ## 2026-08-27 审批修订以最新用户意见更新 GDD 决定快照