test(config): enforce allow+alsoAllow mutual exclusion

src/config/config.tools-alsoAllow.test.ts

@@ -0,0 +1,53 @@
+import { describe, expect, it } from "vitest";
+
+import { validateConfigObject } from "./validation.js";
+
+// NOTE: These tests ensure allow + alsoAllow cannot be set in the same scope.
+
+describe("config: tools.alsoAllow", () => {
+  it("rejects tools.allow + tools.alsoAllow together", () => {
+    const res = validateConfigObject({
+      tools: {
+        allow: ["group:fs"],
+        alsoAllow: ["lobster"],
+      },
+    });
+
+    expect(res.ok).toBe(false);
+    if (!res.ok) {
+      expect(res.issues.some((i) => i.path === "tools")).toBe(true);
+    }
+  });
+
+  it("rejects agents.list[].tools.allow + alsoAllow together", () => {
+    const res = validateConfigObject({
+      agents: {
+        list: [
+          {
+            id: "main",
+            tools: {
+              allow: ["group:fs"],
+              alsoAllow: ["lobster"],
+            },
+          },
+        ],
+      },
+    });
+
+    expect(res.ok).toBe(false);
+    if (!res.ok) {
+      expect(res.issues.some((i) => i.path.includes("agents.list"))).toBe(true);
+    }
+  });
+
+  it("allows profile + alsoAllow", () => {
+    const res = validateConfigObject({
+      tools: {
+        profile: "coding",
+        alsoAllow: ["lobster"],
+      },
+    });
+
+    expect(res.ok).toBe(true);
+  });
+});