diff --git a/server-tools/lake-lamp-authz/server.test.js b/server-tools/lake-lamp-authz/server.test.js
index c254559..82d2d77 100644
--- a/server-tools/lake-lamp-authz/server.test.js
+++ b/server-tools/lake-lamp-authz/server.test.js
@@ -731,6 +731,64 @@ test("GHDR double signing is email-authorized and bound to one canonical layout
   }
 });
 
+test("GHDR controller transport endpoints expose jobs and public authority without private keys", async () => {
+  const calls = [];
+  await withServer(async ({ base }) => {
+    const publicResponse = await fetch(`${base}/api/ghdr/authorizer-public-key`);
+    assert.equal(publicResponse.status, 200);
+    const publicPayload = await publicResponse.json();
+    assert.equal(publicPayload.binding.algorithm, "Ed25519");
+    assert.equal(publicPayload.binding.public_key_sha256, "ab".repeat(32));
+    assert.doesNotMatch(JSON.stringify(publicPayload), /PRIVATE KEY/);
+
+    const pollBody = { request: { schema: "poll" }, request_signature_hex: "11" };
+    const poll = await fetch(`${base}/api/ghdr/controllers/poll`, {
+      method: "POST",
+      headers: { "content-type": "application/json" },
+      body: JSON.stringify(pollBody),
+    });
+    assert.equal(poll.status, 200);
+    assert.equal((await poll.json()).job.job_id, "job-1");
+
+    const resultBody = {
+      request: { schema: "result" },
+      request_signature_hex: "22",
+      signature: { signature_hex: "33" },
+    };
+    const result = await fetch(`${base}/api/ghdr/controllers/result`, {
+      method: "POST",
+      headers: { "content-type": "application/json" },
+      body: JSON.stringify(resultBody),
+    });
+    assert.equal(result.status, 403);
+    assert.equal((await result.json()).error, "controller_result_refused");
+    assert.deepEqual(calls, [
+      ["poll", pollBody],
+      ["submit", resultBody],
+    ]);
+  }, {
+    getGhdrAuthorizer: () => ({
+      publicBinding: () => ({
+        schema: "guanghu.ghdr-authorizer-public-binding/v1",
+        authorizer_id: "JD-FD-PRIMARY-LAKE-LAMP",
+        algorithm: "Ed25519",
+        public_key_pem: "-----BEGIN PUBLIC KEY-----\nTEST\n-----END PUBLIC KEY-----\n",
+        public_key_sha256: "ab".repeat(32),
+      }),
+    }),
+    getGhdrControllerBroker: () => ({
+      poll: body => {
+        calls.push(["poll", body]);
+        return { ok: true, job: { job_id: "job-1" } };
+      },
+      submit: body => {
+        calls.push(["submit", body]);
+        return { ok: false, error: "controller_result_refused" };
+      },
+    }),
+  });
+});
+
 test("deployment is dispatched only by an explicit approved second signal", async () => {
   const dir = fs.mkdtempSync(path.join(os.tmpdir(), "lake-lamp-deploy-dispatch-"));
   const mapsDir = path.join(dir, "maps"); fs.mkdirSync(mapsDir);