diff --git a/src/plugins/web-provider-public-artifacts.explicit-fast-path.test.ts b/src/plugins/web-provider-public-artifacts.explicit-fast-path.test.ts
index 2baf806deaa..53b80e3e1b0 100644
--- a/src/plugins/web-provider-public-artifacts.explicit-fast-path.test.ts
+++ b/src/plugins/web-provider-public-artifacts.explicit-fast-path.test.ts
@@ -77,6 +77,15 @@ import {
   resolveBundledWebSearchProvidersFromPublicArtifacts,
 } from "./web-provider-public-artifacts.js";
 
+function expectSingleProvider<T>(providers: T[] | undefined): T {
+  expect(providers).toHaveLength(1);
+  const provider = providers?.[0];
+  if (provider === undefined) {
+    throw new Error("Expected one web provider");
+  }
+  return provider;
+}
+
 describe("web provider public artifacts explicit fast path", () => {
   beforeEach(() => {
     loadPluginManifestRegistryMock.mockClear();
@@ -84,13 +93,15 @@ describe("web provider public artifacts explicit fast path", () => {
   });
 
   it("resolves bundled web search providers by explicit plugin id without manifest scans", () => {
-    const provider = resolveBundledWebSearchProvidersFromPublicArtifacts({
-      bundledAllowlistCompat: true,
-      onlyPluginIds: ["brave"],
-    })?.[0];
+    const provider = expectSingleProvider(
+      resolveBundledWebSearchProvidersFromPublicArtifacts({
+        bundledAllowlistCompat: true,
+        onlyPluginIds: ["brave"],
+      }),
+    );
 
-    expect(provider?.pluginId).toBe("brave");
-    expect(provider?.createTool({ config: {} as never })).toBeNull();
+    expect(provider.pluginId).toBe("brave");
+    expect(provider.createTool({ config: {} as never })).toBeNull();
     expect(loadBundledPluginPublicArtifactModuleSyncMock).toHaveBeenCalledWith({
       dirName: "brave",
       artifactBasename: "web-search-contract-api.js",
@@ -99,12 +110,14 @@ describe("web provider public artifacts explicit fast path", () => {
   });
 
   it("resolves bundled runtime web search providers by explicit plugin id", () => {
-    const provider = resolveExplicitRuntimeWebSearchProviders({
-      onlyPluginIds: ["google"],
-    })?.[0];
+    const provider = expectSingleProvider(
+      resolveExplicitRuntimeWebSearchProviders({
+        onlyPluginIds: ["google"],
+      }),
+    );
 
-    expect(provider?.pluginId).toBe("google");
-    expect(provider?.createTool({ config: {} as never })).not.toBeNull();
+    expect(provider.pluginId).toBe("google");
+    expect(provider.createTool({ config: {} as never })).toEqual(expect.any(Object));
     expect(loadBundledPluginPublicArtifactModuleSyncMock).toHaveBeenCalledWith({
       dirName: "google",
       artifactBasename: "web-search-provider.js",
@@ -113,13 +126,15 @@ describe("web provider public artifacts explicit fast path", () => {
   });
 
   it("resolves bundled web fetch providers by explicit plugin id without manifest scans", () => {
-    const provider = resolveBundledWebFetchProvidersFromPublicArtifacts({
-      bundledAllowlistCompat: true,
-      onlyPluginIds: ["firecrawl"],
-    })?.[0];
+    const provider = expectSingleProvider(
+      resolveBundledWebFetchProvidersFromPublicArtifacts({
+        bundledAllowlistCompat: true,
+        onlyPluginIds: ["firecrawl"],
+      }),
+    );
 
-    expect(provider?.pluginId).toBe("firecrawl");
-    expect(provider?.createTool({ config: {} as never })).toBeNull();
+    expect(provider.pluginId).toBe("firecrawl");
+    expect(provider.createTool({ config: {} as never })).toBeNull();
     expect(loadBundledPluginPublicArtifactModuleSyncMock).toHaveBeenCalledWith({
       dirName: "firecrawl",
       artifactBasename: "web-fetch-contract-api.js",