diff --git a/tests/test_module_spec.py b/tests/test_module_spec.py
new file mode 100644
index 0000000..d82cec2
--- /dev/null
+++ b/tests/test_module_spec.py
@@ -0,0 +1,146 @@
+from __future__ import annotations
+
+import json
+import sys
+import unittest
+from pathlib import Path, PurePosixPath
+
+
+ROOT = Path(__file__).resolve().parents[1]
+SPEC_PATH = ROOT / "MODULE_SPEC.yaml"
+sys.path.insert(0, str(ROOT / "scripts"))
+
+from gen_clash_verge_script import load_payload, to_rule  # noqa: E402
+
+
+class ModuleSpecTests(unittest.TestCase):
+    def test_module_spec_declares_rule_authority_and_safe_context(self) -> None:
+        spec = json.loads(SPEC_PATH.read_text(encoding="utf-8"))
+
+        self.assertEqual(
+            set(spec),
+            {
+                "schema_version",
+                "module_id",
+                "authority",
+                "repository",
+                "bounded_context",
+                "capabilities",
+                "data",
+                "contracts",
+                "dependencies",
+                "agent_context",
+                "verification",
+            },
+        )
+        self.assertEqual(spec["schema_version"], 1)
+        self.assertEqual(spec["module_id"], "vpn-rules")
+        self.assertEqual(
+            spec["authority"],
+            {
+                "scope": "module_metadata",
+                "subject": "vpn-rules",
+                "owner": "vpn-rules-owner",
+                "source": "MODULE_SPEC.yaml",
+                "revision": 1,
+                "effective_from": "2026-08-20T00:00:00+08:00",
+            },
+        )
+        self.assertEqual(
+            spec["repository"],
+            {
+                "name": "vpn-rules",
+                "workspace_id": None,
+                "type": "infrastructure",
+                "maturity": "operational",
+            },
+        )
+
+        boundary = spec["bounded_context"]
+        self.assertEqual(boundary["domain"], "network-routing-policy")
+        self.assertIn("single source of truth", boundary["responsibility"].lower())
+        prohibited = " ".join(boundary["prohibited_responsibilities"]).lower()
+        self.assertIn("production", prohibited)
+        self.assertIn("credential", prohibited)
+        self.assertIn("proxy subscription", prohibited)
+
+        self.assertEqual(
+            {capability["id"] for capability in spec["capabilities"]},
+            {
+                "direct-routing-rule-authoring",
+                "clash-verge-script-generation",
+                "router-rule-projection",
+            },
+        )
+        self.assertEqual(spec["contracts"]["consumes"], [])
+        self.assertEqual(spec["dependencies"], [])
+        provided = {
+            contract["contract_id"]: contract
+            for contract in spec["contracts"]["provides"]
+        }
+        self.assertEqual(
+            set(provided),
+            {
+                "mihomo-direct-rule-provider",
+                "router-direct-rules",
+                "router-direct-plain-list",
+            },
+        )
+        self.assertEqual(
+            {contract["version"] for contract in provided.values()}, {"1.0.0"}
+        )
+        for contract in provided.values():
+            self.assertTrue((ROOT / contract["path"]).is_file())
+
+        context = spec["agent_context"]
+        self.assertLessEqual(context["max_default_tokens"], 6000)
+        self.assertEqual(
+            {entry["path"] for entry in context["default_entrypoints"]},
+            {"README.md", "direct.yaml"},
+        )
+        for entry in context["default_entrypoints"]:
+            self.assertTrue((ROOT / entry["path"]).is_file())
+        self.assertIn("router", context["excluded_paths"])
+        for value in context["excluded_paths"]:
+            path = PurePosixPath(value)
+            self.assertFalse(path.is_absolute())
+            self.assertNotIn("..", path.parts)
+
+        self.assertEqual(
+            spec["verification"],
+            {
+                "commands": [
+                    {
+                        "id": "rule-contract-tests",
+                        "argv": [
+                            "python3",
+                            "-m",
+                            "unittest",
+                            "discover",
+                            "-s",
+                            "tests",
+                            "-v",
+                        ],
+                        "cwd": ".",
+                        "network": False,
+                        "required": True,
+                    }
+                ]
+            },
+        )
+
+    def test_checked_in_router_projections_match_the_rule_source(self) -> None:
+        payload = load_payload(ROOT / "direct.yaml")
+        plain = (ROOT / "router/direct-plain.txt").read_text(encoding="utf-8")
+        router = (ROOT / "router/direct-rules.yaml").read_text(encoding="utf-8")
+
+        self.assertEqual(plain, "\n".join(payload) + "\n")
+        self.assertEqual(
+            router.split("rules:\n", 1)[1],
+            "\n".join(f"  - {to_rule(entry)}" for entry in payload) + "\n",
+        )
+        self.assertTrue(all(",DIRECT" not in entry for entry in payload))
+
+
+if __name__ == "__main__":
+    unittest.main()