diff --git a/test/config.test.js b/test/config.test.js
new file mode 100644
index 00000000..4716db75
--- /dev/null
+++ b/test/config.test.js
@@ -0,0 +1,31 @@
+// config.test.js — unit tests for lib/config.js path helpers
+
+var test = require("node:test");
+var assert = require("node:assert");
+var path = require("path");
+var os = require("os");
+
+// Point CLAGENTIC_HOME at a temp dir so tests don't touch the real ~/.clagentic
+var tmpHome = require("fs").mkdtempSync(require("path").join(os.tmpdir(), "clagentic-config-test-"));
+process.env.CLAGENTIC_HOME = tmpHome;
+
+var config = require("../lib/config");
+
+test("socketPath returns path inside ~/.clagentic/console/", function () {
+  var sock = config.socketPath();
+  assert.ok(
+    sock.includes(path.join("console", "daemon.sock")),
+    "expected socketPath() to contain console/daemon.sock, got: " + sock
+  );
+});
+
+test("socketPath dev mode returns path inside ~/.clagentic/console/", function () {
+  // Dev mode is read at module load time via CLAGENTIC_DEV env var.
+  // Verify the non-dev path contains the console subdir (dev mode tested via env in integration).
+  // The key invariant: both branches of socketPath() embed the console/ subdir.
+  var sock = config.socketPath();
+  assert.ok(
+    sock.includes("console"),
+    "expected socketPath() to contain 'console' subdir in all modes, got: " + sock
+  );
+});