feat: expose repository navigation queries

Assistant: codex
Assistant-Model: gpt-5.6-sol
Assistant-Session: 01a0230c-b06c-7641-808a-e191b6d1da49

tests/test_mcp.py

@@ -30,6 +30,8 @@ def test_mcp_base_server_registers_orientation_doi_and_fos10_tools() -> None:
         "get_doi_summary",
         "get_risks",
         "get_alerts",
+        "query_repository_navigation",
+        "get_repository_navigation_facet",
     } <= names
     assert names == CORE_TOOL_NAMES
 
@@ -49,3 +51,19 @@ def test_attach_to_host_mcp_respects_exclude() -> None:
     assert "send_message" not in names
     assert "get_domain_summary" in names
     assert len(names) == len(CORE_TOOL_NAMES) - 2
+
+
+def test_repository_navigation_mcp_tool_exposes_all_six_facets() -> None:
+    server = HubCoreMCPServer(name="test-hub", api_base="http://127.0.0.1:9999")
+
+    tools = {tool.name: tool for tool in asyncio.run(server.mcp.list_tools())}
+    schema = tools["query_repository_navigation"].parameters
+
+    assert {
+        "primary_domain",
+        "secondary_domain",
+        "category",
+        "capability_tag",
+        "business_stake",
+        "business_mechanic",
+    } <= set(schema["properties"])