diff --git a/skills/shared/guanghu-lighthouse-navigator/scripts/resolve_lighthouse_route.py b/skills/shared/guanghu-lighthouse-navigator/scripts/resolve_lighthouse_route.py
index facc421..e9340ec 100644
--- a/skills/shared/guanghu-lighthouse-navigator/scripts/resolve_lighthouse_route.py
+++ b/skills/shared/guanghu-lighthouse-navigator/scripts/resolve_lighthouse_route.py
@@ -64,6 +64,28 @@ def resolve_intent(host_map: dict, text: str) -> dict | None:
     return max(scored, default=(0, "", None))[2]
 
 
+def clarification_prompt(host_map: dict, host_name: str, intent_text: str, reason: str) -> dict:
+    examples = [
+        {
+            "intent_id": intent["id"],
+            "target_id": intent.get("target_id"),
+            "examples": intent.get("phrases", [])[:2],
+        }
+        for intent in host_map.get("intents", [])[:8]
+    ]
+    if reason == "HOST_UNKNOWN_NO_GUESS":
+        question = f"我还不知道要用哪个宿主来处理“{intent_text}”。你要我在 Codex、Qoder、Qwen 还是 Doubao 上继续？"
+    else:
+        question = f"我暂时找不到“{intent_text}”对应的已登记路径。你要我查哪个频道、系统、仓库或办公室？请直接说名称或编号。"
+    return {
+        "required": True,
+        "question": question,
+        "reason": "UNKNOWN_ROUTE_IS_CLARIFIABLE_NOT_EXECUTABLE",
+        "examples": examples,
+        "can_continue_after_answer": True,
+    }
+
+
 def resolve_path(registry: dict, route_id: str) -> dict:
     for path in registry["paths"]:
         if path["id"].upper() == route_id.upper():
@@ -99,10 +121,22 @@ def keychain_helper_status() -> dict:
 def compile_route(registry: dict, host_map: dict, host_name: str, intent_text: str) -> dict:
     host = resolve_host(host_map, host_name)
     if not host:
-        return {"decision": "BLOCK", "error": "HOST_UNKNOWN_NO_GUESS", "requested_host": host_name}
+        return {
+            "decision": "CLARIFY",
+            "error": "HOST_UNKNOWN_NO_GUESS",
+            "requested_host": host_name,
+            "clarification": clarification_prompt(host_map, host_name, intent_text, "HOST_UNKNOWN_NO_GUESS"),
+            "authority_granted": False,
+        }
     intent = resolve_intent(host_map, intent_text)
     if not intent:
-        return {"decision": "BLOCK", "error": "INTENT_UNKNOWN_NO_GUESS", "requested_intent": intent_text}
+        return {
+            "decision": "CLARIFY",
+            "error": "INTENT_UNKNOWN_NO_GUESS",
+            "requested_intent": intent_text,
+            "clarification": clarification_prompt(host_map, host_name, intent_text, "INTENT_UNKNOWN_NO_GUESS"),
+            "authority_granted": False,
+        }
     target = resolve_path(registry, intent["target_id"])
     if target["status"] != "VALID_REGISTERED":
         return {"decision": "BLOCK", "error": "LIGHTHOUSE_TARGET_INVALID", "target": target}
diff --git a/skills/shared/guanghu-lighthouse-navigator/scripts/test_resolve_lighthouse_route.py b/skills/shared/guanghu-lighthouse-navigator/scripts/test_resolve_lighthouse_route.py
index 16863aa..e8aa120 100644
--- a/skills/shared/guanghu-lighthouse-navigator/scripts/test_resolve_lighthouse_route.py
+++ b/skills/shared/guanghu-lighthouse-navigator/scripts/test_resolve_lighthouse_route.py
@@ -30,15 +30,19 @@ class LighthouseNavigatorTests(unittest.TestCase):
         self.assertEqual(qoder["intent"]["skill_id"], work["intent"]["skill_id"])
         self.assertNotEqual(qoder["host"]["adapter_path"], work["host"]["adapter_path"])
 
-    def test_unknown_host_and_intent_fail_closed(self):
-        self.assertEqual(
-            compile_route(self.registry, self.host_map, "mystery", "推一下线上仓库")["error"],
-            "HOST_UNKNOWN_NO_GUESS",
-        )
-        self.assertEqual(
-            compile_route(self.registry, self.host_map, "codex", "今天吃什么")["error"],
-            "INTENT_UNKNOWN_NO_GUESS",
-        )
+    def test_unknown_host_and_intent_request_clarification_without_navigation(self):
+        unknown_host = compile_route(self.registry, self.host_map, "mystery", "推一下线上仓库")
+        self.assertEqual(unknown_host["decision"], "CLARIFY")
+        self.assertEqual(unknown_host["error"], "HOST_UNKNOWN_NO_GUESS")
+        self.assertTrue(unknown_host["clarification"]["required"])
+        self.assertIn("哪个宿主", unknown_host["clarification"]["question"])
+
+        unknown_intent = compile_route(self.registry, self.host_map, "codex", "今天吃什么")
+        self.assertEqual(unknown_intent["decision"], "CLARIFY")
+        self.assertEqual(unknown_intent["error"], "INTENT_UNKNOWN_NO_GUESS")
+        self.assertTrue(unknown_intent["clarification"]["required"])
+        self.assertIn("哪个频道、系统、仓库或办公室", unknown_intent["clarification"]["question"])
+        self.assertFalse(unknown_intent["authority_granted"])
 
     def test_old_repository_is_redirect_only(self):
         from resolve_lighthouse_route import resolve_path