diff --git a/docs/parliament.md b/docs/parliament.md
index e2a4365..1e5466c 100644
--- a/docs/parliament.md
+++ b/docs/parliament.md
@@ -64,7 +64,7 @@ Peer 在 Realm 证书互鉴后做 **临时 X25519 密钥交换**，后续议会
 bash scripts/docker_parliament_test.sh
 ```
 
-Alpine 内构建，chair↔member 握手 + 密封通道。
+Alpine 内构建，chair↔member 握手 + 密封通道同步（`sealed=1` / `peer_sync`）。
 
 ## 相关标志
 
diff --git a/include/cst_version.h b/include/cst_version.h
index bc65884..f814ed1 100644
--- a/include/cst_version.h
+++ b/include/cst_version.h
@@ -3,7 +3,7 @@
 
 #define CST_VERSION_MAJOR 0
 #define CST_VERSION_MINOR 9
-#define CST_VERSION_PATCH 17
+#define CST_VERSION_PATCH 18
 
 #define CST_VERSION_STR_(x) #x
 #define CST_VERSION_STR(x) CST_VERSION_STR_(x)
diff --git a/scripts/docker_parliament_test.sh b/scripts/docker_parliament_test.sh
index 3bf19ae..5160621 100755
--- a/scripts/docker_parliament_test.sh
+++ b/scripts/docker_parliament_test.sh
@@ -43,17 +43,22 @@ done
 docker logs cst-parl-a 2>&1 | tail -8
 
 echo "== member dials =="
-docker run --rm --name cst-parl-b --network "$NET" \
+dial_out="$(docker run --rm --name cst-parl-b --network "$NET" \
   -v "$VOL:/realm-config" -e XDG_CONFIG_HOME=/realm-config \
-  "$IMG" --peer-dial="cst-parl-a:${LISTEN_PORT}" --instance member-b
+  "$IMG" --peer-dial="cst-parl-a:${LISTEN_PORT}" --instance member-b)"
+echo "$dial_out"
+echo "$dial_out" | grep -q 'sealed=1'
+echo "$dial_out" | grep -q 'peer_sync rev='
 
 echo "== chair result =="
 for i in $(seq 1 50); do
-  if docker logs cst-parl-a 2>&1 | grep -q "peer_ok"; then
+  if docker logs cst-parl-a 2>&1 | grep -q "peer_sync rev="; then
     break
   fi
   sleep 0.2
 done
-docker logs cst-parl-a 2>&1 | grep peer_ok
+docker logs cst-parl-a 2>&1 | grep -E 'peer_ok|peer_sync'
+docker logs cst-parl-a 2>&1 | grep -q 'sealed=1'
+docker logs cst-parl-a 2>&1 | grep -q 'peer_sync rev='
 
 echo "docker_parliament_test: OK"
diff --git a/src/agent_loop.c b/src/agent_loop.c
index 006507c..f1211bc 100644
--- a/src/agent_loop.c
+++ b/src/agent_loop.c
@@ -1030,9 +1030,13 @@ static void sandbox_escalate(turn_t *t, cst_tool_ctx_t *ctx,
   }
   if (ans == CST_PERM_DENY) {
     const char *note =
-        "\n[cst: blocked by the sandbox (writes are limited to the "
-        "workspace and temp dir); the user did not allow running it "
-        "outside]\n";
+        (t->hooks && t->hooks->on_permission)
+            ? "\n[cst: blocked by the sandbox (writes are limited to the "
+              "workspace and temp dir); the user did not allow running it "
+              "outside]\n"
+            : "\n[cst: blocked by the sandbox (writes are limited to the "
+              "workspace and temp dir); no interactive approval channel to "
+              "rerun outside — use CST_APPROVAL=yolo or the TUI]\n";
     cst_buf_t b = {0};
     if (tr->out)
       cst_buf_append(&b, tr->out, tr->out_len);
@@ -1284,7 +1288,13 @@ static void exec_begin(turn_t *t, pcall_t *pc, exec_t *x) {
     pc->status = PC_DUP;
     hook_status(t, "skip duplicate read");
   } else if (!allow) {
-    set_output(pc, "denied by user", 14, 1);
+    const char *msg =
+        (t->hooks && t->hooks->on_permission)
+            ? "denied by user"
+            : "error: tool needs approval but no interactive channel is "
+              "available (headless/auto without YOLO). Set CST_APPROVAL=yolo "
+              "or CST_AUTO_APPROVE=1, or run in the TUI.";
+    set_output(pc, msg, strlen(msg), 1);
     pc->status = PC_DENIED;
     hook_tool(t, "denied", c, detail);
   } else {
diff --git a/src/parliament.c b/src/parliament.c
index 2f43907..327afde 100644
--- a/src/parliament.c
+++ b/src/parliament.c
@@ -468,5 +468,6 @@ char *cst_parliament_status_text(void) {
                    svc_id[0] ? svc_id : "-", svc_port);
   else
     cst_buf_puts(&b, "service     stopped\n");
+  cst_buf_puts(&b, "peer_sync   sealed (X25519 + XChaCha20-Poly1305)\n");
   return cst_buf_steal(&b);
 }
diff --git a/src/parliament_cli.c b/src/parliament_cli.c
index f66603b..a3385d8 100644
--- a/src/parliament_cli.c
+++ b/src/parliament_cli.c
@@ -247,7 +247,27 @@ int cst_parliament_cli_peer_listen(int port, const char *instance_id) {
     os_net_close(ls);
     return 1;
   }
-  printf("peer_ok remote=%s host=%s\n", sess.remote.instance_id, sess.host);
+  printf("peer_ok remote=%s host=%s sealed=%d\n", sess.remote.instance_id,
+         sess.host, sess.sealed);
+  fflush(stdout);
+  {
+    cst_peer_sync_bundle_t local = {0};
+    cst_parliament_meta_t m;
+    memset(&m, 0, sizeof(m));
+    (void)cst_parliament_load(&m);
+    local.revision = m.revision;
+    snprintf(local.parliament_id, sizeof(local.parliament_id), "%s",
+             m.parliament_id);
+    snprintf(local.project_id, sizeof(local.project_id), "%s", m.project_id);
+    snprintf(local.chair_instance, sizeof(local.chair_instance), "%s",
+             m.chair_instance);
+    local.context = cst_parliament_context_get();
+    if (cst_peer_sync(&sess, &local, 15000, err, sizeof(err)) != 0)
+      fprintf(stderr, "peer_sync failed: %s\n", err);
+    else
+      printf("peer_sync rev=%lu sealed=1\n", local.revision);
+    free(local.context);
+  }
   cst_peer_close(&sess);
   os_net_close(ls);
   return 0;
@@ -274,7 +294,26 @@ int cst_parliament_cli_peer_dial(const char *host, int port,
     fprintf(stderr, "dial/handshake failed: %s\n", err);
     return 1;
   }
-  printf("peer_ok remote=%s\n", sess.remote.instance_id);
+  printf("peer_ok remote=%s sealed=%d\n", sess.remote.instance_id, sess.sealed);
+  fflush(stdout);
+  {
+    cst_peer_sync_bundle_t local = {0};
+    cst_parliament_meta_t m;
+    memset(&m, 0, sizeof(m));
+    (void)cst_parliament_load(&m);
+    local.revision = m.revision;
+    snprintf(local.parliament_id, sizeof(local.parliament_id), "%s",
+             m.parliament_id);
+    snprintf(local.project_id, sizeof(local.project_id), "%s", m.project_id);
+    snprintf(local.chair_instance, sizeof(local.chair_instance), "%s",
+             m.chair_instance);
+    local.context = cst_parliament_context_get();
+    if (cst_peer_sync(&sess, &local, 15000, err, sizeof(err)) != 0)
+      fprintf(stderr, "peer_sync failed: %s\n", err);
+    else
+      printf("peer_sync rev=%lu sealed=1\n", local.revision);
+    free(local.context);
+  }
   cst_peer_close(&sess);
   return 0;
 }
diff --git a/tests/test_parliament.c b/tests/test_parliament.c
index 963e44e..7ec9d01 100644
--- a/tests/test_parliament.c
+++ b/tests/test_parliament.c
@@ -73,6 +73,7 @@ int main(void) {
   char *st = cst_parliament_status_text();
   assert(st && strstr(st, "parliament"));
   assert(strstr(st, "service"));
+  assert(strstr(st, "peer_sync") && strstr(st, "sealed"));
   free(st);
   assert(cst_parliament_is_active());
   assert(cst_parliament_daemon_info(NULL, NULL, 0, NULL) != 0);