feat(anthropic): add tool testapp

js/testapps/anthropic/src/stable/tools.ts

@@ -0,0 +1,53 @@
+/**
+ * Copyright 2025 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import { anthropic } from '@genkit-ai/anthropic';
+import { genkit, z } from 'genkit';
+
+const ai = genkit({
+  plugins: [
+    // Configure the plugin with environment-driven API key
+    anthropic(),
+  ],
+});
+
+const getWeather = ai.defineTool(
+  {
+    name: 'getWeather',
+    description: 'Gets the current weather in a given location',
+    inputSchema: z.object({
+      location: z
+        .string()
+        .describe('The location to get the current weather for'),
+    }),
+    outputSchema: z.string(),
+  },
+  async (input: any) => {
+    // Here, we would typically make an API call or database query. For this
+    // example, we just return a fixed value.
+    return `The current weather in ${input.location} is 63°F and sunny.`;
+  }
+);
+
+ai.defineFlow('anthropic-stable-tools', async () => {
+  const { text } = await ai.generate({
+    model: anthropic.model('claude-sonnet-4-5'),
+    tools: [getWeather],
+    prompt: 'What is the weather in Paris?',
+  });
+
+  return text;
+});