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 27c300f3d..564f7a6c0 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
@@ -74,6 +74,42 @@ fn approval_observation(receipt: &PlanGddApprovalV1) -> AgentRuntimeToolObservat
     }
 }
 
+/// 审批卡上的「修改/退回」是用户说的话，落点和决策卡的答案一样：Supervisor 自己
+/// 的会话文件。`append_user_input_answer_message` 已经为澄清答案建立了这条通道，
+/// 审批决定沿用它。没有这一步 Supervisor 只能从 delivery 的
+/// `contractStatus=user-revision-requested` 知道「用户要改」，读不到要改什么——
+/// playbook 第 6 条的「把用户原话完整附在 task 里」就没有原话可附，返工委派只能
+/// 写一句占位，子 Agent 于是自由发挥。
+fn append_plan_gdd_revision_message(
+    root: &Path,
+    receipt: &PlanGddApprovalV1,
+) -> Result<(), String> {
+    let label = if receipt.action == "reject" {
+        "退回"
+    } else {
+        "修改"
+    };
+    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,
+        LocalConversationMessage {
+            role: "user".to_string(),
+            content: format!(
+                "我对 Fast GDD v{} 的审批：{}。意见原文：\n{}",
+                receipt.version,
+                label,
+                receipt.comment.as_deref().unwrap_or_default()
+            ),
+            agent_id: None,
+        },
+        &format!("plan-gdd-decision-{}", receipt.response_id),
+    )
+    .map(|_| ())
+}
+
 fn receipt_decision_input(
     gdd: &PlanGddV1,
     input: &DecidePlanGddInputV1,
@@ -1149,6 +1185,10 @@ 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) {
+            note_plan_gdd_projection_gap(root, receipt, "delivery-revision-message", &error);
+            recovery_pending = true;
+        }
     }
     // A replay may target an older receipt after a newer GDD has already been
     // submitted.  The receipt still repairs its own audit/observation, but it
diff --git a/apps/ai-game-creator-shell/src-tauri/src/agent/runtime_protocol/planning_submit.rs b/apps/ai-game-creator-shell/src-tauri/src/agent/runtime_protocol/planning_submit.rs
index b63d5953f..f5dee5b6d 100644
--- a/apps/ai-game-creator-shell/src-tauri/src/agent/runtime_protocol/planning_submit.rs
+++ b/apps/ai-game-creator-shell/src-tauri/src/agent/runtime_protocol/planning_submit.rs
@@ -4192,6 +4192,51 @@ mod tests {
         cleanup_fixture(root);
     }
 
+    /// 审批卡上的「修改/退回」意见必须原文落进 Supervisor 会话——那是 playbook
+    /// 第 6 条「把用户原话完整附在 task 里」唯一的原话来源。delivery 的
+    /// `contractStatus=user-revision-requested` 只说明「用户要改」，不带内容，
+    /// Supervisor 拿不到原文就只能在返工委派里写一句占位。
+    ///
+    /// 追加必须幂等：`reconcile_plan_gdd_approval_projections_locked` 每次 hydrate
+    /// 都会为全部回执重跑 `project_receipt_locked`。
+    #[test]
+    fn a_revision_comment_reaches_the_supervisor_conversation_once() {
+        let (root, gdd, _root_runtime) = acceptance_gate_fixture(true);
+        create_plan_gdd_approval_pending_at(&root, &gdd).expect("create approval pending");
+        decide_plan_gdd_at(
+            &root,
+            &approval_input(
+                &gdd,
+                "revise",
+                "gdd-response-00000000-0000-4000-8000-000000000050",
+                Some("把游戏名称改成日本语".to_string()),
+            ),
+        )
+        .expect("commit revise receipt");
+        let supervisor_messages = || {
+            read_local_conversation_for_session_at(
+                &root,
+                Some(GAME_CREATOR_PROJECT_SUPERVISOR_AGENT_ID),
+                None,
+            )
+            .expect("read supervisor conversation")
+            .messages
+        };
+        let after_decision = supervisor_messages();
+        assert!(
+            after_decision.iter().any(|message| message.role == "user"
+                && message.content.contains("把游戏名称改成日本语")),
+            "用户修改意见必须原文进入 Supervisor 会话"
+        );
+        reconcile_plan_gdd_approval_projections_locked(&root).expect("replay receipt projections");
+        assert_eq!(
+            supervisor_messages().len(),
+            after_decision.len(),
+            "投影重放不得重复追加同一条审批意见"
+        );
+        cleanup_fixture(root);
+    }
+
     /// reject 之后能不能在同一 lineage 重做，**不由提交门的 phase 判据决定**。
     ///
     /// 提交门要求 session 的 activeRunId 等于当前策划子 run，而 schema 不变量禁止