Implement Basic Agent (#14)

Author: mme

apps/react/demo/package.json

@@ -10,8 +10,8 @@
   },
   "dependencies": {
     "@ag-ui/client": "0.0.40-alpha.3",
+    "@copilotkitnext/basic-agent": "workspace:*",
     "@copilotkitnext/core": "workspace:*",
-    "@copilotkitnext/demo-agents": "workspace:*",
     "@copilotkitnext/react": "workspace:*",
     "@copilotkitnext/runtime": "workspace:*",
     "@copilotkitnext/shared": "workspace:*",

apps/react/demo/src/app/api/copilotkit/[[...slug]]/openai.ts

@@ -4,71 +4,31 @@ import {
   InMemoryAgentRunner,
 } from "@copilotkitnext/runtime";
 import { handle } from "hono/vercel";
-import { OpenAIAgent } from "./openai";
-import {
-  AbstractAgent,
-  BaseEvent,
-  EventType,
-  RunAgentInput,
-} from "@ag-ui/client";
-import { Observable } from "rxjs";
-
-class MissingOpenAIKeyAgent extends AbstractAgent {
-  clone(): MissingOpenAIKeyAgent {
-    return new MissingOpenAIKeyAgent();
-  }
-
-  protected run(input: RunAgentInput): Observable<BaseEvent> {
-    return new Observable<BaseEvent>((observer) => {
-      const { runId, threadId } = input;
-      const messageId = runId ?? `missing-key-${Date.now()}`;
-
-      observer.next({
-        type: EventType.RUN_STARTED,
-        runId,
-        threadId,
-      } as BaseEvent);
-
-      observer.next({
-        type: EventType.TEXT_MESSAGE_START,
-        messageId,
-        role: "assistant",
-      } as BaseEvent);
-
-      observer.next({
-        type: EventType.TEXT_MESSAGE_CONTENT,
-        messageId,
-        delta:
-          "OPENAI_API_KEY is not set. Provide a key to enable the OpenAI demo agent.",
-      } as BaseEvent);
-
-      observer.next({
-        type: EventType.TEXT_MESSAGE_END,
-        messageId,
-      } as BaseEvent);
-
-      observer.next({
-        type: EventType.RUN_FINISHED,
-        runId,
-        threadId,
-      } as BaseEvent);
-
-      observer.complete();
-
-      return () => {};
-    });
+import { BasicAgent } from "@copilotkitnext/basic-agent";
+
+// Determine which model to use based on available API keys
+const getModelConfig = () => {
+  if (process.env.OPENAI_API_KEY?.trim()) {
+    return "openai/gpt-4o";
+  } else if (process.env.ANTHROPIC_API_KEY?.trim()) {
+    return "anthropic/claude-sonnet-4.5";
+  } else if (process.env.GOOGLE_API_KEY?.trim()) {
+    return "google/gemini-2.5-pro";
   }
-}
-
-const hasOpenAIKey = Boolean(process.env.OPENAI_API_KEY?.trim());
-
-const selectedAgent = hasOpenAIKey
-  ? new OpenAIAgent()
-  : new MissingOpenAIKeyAgent();
+  throw new Error(
+    "No API key found. Please set OPENAI_API_KEY, ANTHROPIC_API_KEY, or GOOGLE_API_KEY environment variable."
+  );
+};
+
+const agent = new BasicAgent({
+  model: getModelConfig(),
+  prompt: "You are a helpful AI assistant.",
+  temperature: 0.7,
+});
 
 const runtime = new CopilotRuntime({
   agents: {
-    default: selectedAgent as unknown as AbstractAgent,
+    default: agent,
   },
   runner: new InMemoryAgentRunner(),
 });

apps/react/demo/src/app/api/copilotkit/[[...slug]]/route.ts

@@ -2,11 +2,11 @@
   "name": "CopilotKitNext",
   "private": true,
   "scripts": {
-    "predev": "turbo run build --filter='@copilotkitnext/core' --filter='@copilotkitnext/shared' --filter='@copilotkitnext/react' --filter='@copilotkitnext/angular' --filter='@copilotkitnext/demo-agents'",
+    "predev": "turbo run build --filter='@copilotkitnext/core' --filter='@copilotkitnext/shared' --filter='@copilotkitnext/react' --filter='@copilotkitnext/angular' --filter='@copilotkitnext/basic-agent'",
     "build": "turbo run build",
     "clean": "turbo run clean",
-    "dev": "turbo run dev --filter='@copilotkitnext/core' --filter='@copilotkitnext/shared' --filter='@copilotkitnext/runtime' --filter='@copilotkitnext/react' --filter='@copilotkitnext/angular' --filter='@copilotkitnext/demo-agents' --concurrency=15",
-    "dev:packages": "turbo run dev --filter='@copilotkitnext/core' --filter='@copilotkitnext/shared' --filter='@copilotkitnext/runtime' --filter='@copilotkitnext/react' --filter='@copilotkitnext/angular' --filter='@copilotkitnext/demo-agents'",
+    "dev": "turbo run dev --filter='@copilotkitnext/core' --filter='@copilotkitnext/shared' --filter='@copilotkitnext/runtime' --filter='@copilotkitnext/react' --filter='@copilotkitnext/angular' --filter='@copilotkitnext/basic-agent' --concurrency=15",
+    "dev:packages": "turbo run dev --filter='@copilotkitnext/core' --filter='@copilotkitnext/shared' --filter='@copilotkitnext/runtime' --filter='@copilotkitnext/react' --filter='@copilotkitnext/angular' --filter='@copilotkitnext/basic-agent'",
     "demo:angular": "turbo run dev --filter='@copilotkitnext/angular-demo-server' --filter='@copilotkitnext/angular-demo'",
     "storybook:angular": "pnpm -C apps/angular/storybook dev",
     "demo:react": "pnpm -C apps/react/demo dev",

package.json

@@ -0,0 +1,51 @@
+{
+  "name": "@copilotkitnext/basic-agent",
+  "version": "0.0.12",
+  "description": "Basic agent package for CopilotKit2",
+  "main": "dist/index.js",
+  "types": "dist/index.d.ts",
+  "exports": {
+    ".": {
+      "types": "./dist/index.d.ts",
+      "import": "./dist/index.mjs",
+      "require": "./dist/index.js"
+    }
+  },
+  "publishConfig": {
+    "access": "public"
+  },
+  "scripts": {
+    "build": "tsup",
+    "prepublishOnly": "pnpm run build",
+    "dev": "tsup --watch",
+    "lint": "eslint . --max-warnings 0",
+    "check-types": "tsc --noEmit",
+    "clean": "rm -rf dist",
+    "test": "vitest run",
+    "test:watch": "vitest",
+    "test:coverage": "vitest run --coverage"
+  },
+  "devDependencies": {
+    "@copilotkitnext/eslint-config": "workspace:*",
+    "@copilotkitnext/typescript-config": "workspace:*",
+    "@types/node": "^22.15.3",
+    "@vitest/coverage-v8": "^3.2.4",
+    "eslint": "^9.30.0",
+    "tsup": "^8.5.0",
+    "typescript": "5.8.2",
+    "vitest": "^3.0.5"
+  },
+  "dependencies": {
+    "@ag-ui/client": "0.0.40-alpha.3",
+    "@ai-sdk/anthropic": "^2.0.22",
+    "@ai-sdk/google": "^2.0.17",
+    "@ai-sdk/openai": "^2.0.42",
+    "@modelcontextprotocol/sdk": "^1.18.2",
+    "ai": "^5.0.59",
+    "rxjs": "^7.8.1",
+    "zod": "^3.25.75"
+  },
+  "engines": {
+    "node": ">=18"
+  }
+}