added pnpm

examples/agent-kit-langgraph/src/utils/model.ts

@@ -0,0 +1,12 @@
+import { ChatOpenAI } from "@langchain/openai";
+import "dotenv/config";
+
+export const gpt4o = new ChatOpenAI({
+  modelName: "gpt-4o",
+  apiKey: process.env.OPENAI_API_KEY!,
+});
+
+export const gpt4oMini = new ChatOpenAI({
+  modelName: "gpt-4o-mini",
+  apiKey: process.env.OPENAI_API_KEY!,
+});

examples/agent-kit-langgraph/src/utils/solanaAgent.ts

@@ -0,0 +1,7 @@
+import { SolanaAgentKit } from "solana-agent-kit";
+
+export const agentKit = new SolanaAgentKit(
+  process.env.SOLANA_PRIVATE_KEY!,
+  process.env.RPC_URL!,
+  process.env.OPENAI_API_KEY!,
+);

examples/agent-kit-langgraph/src/utils/state.ts

@@ -0,0 +1,25 @@
+import { Annotation } from "@langchain/langgraph";
+import { BaseMessage } from "@langchain/core/messages";
+import { messagesStateReducer } from "@langchain/langgraph";
+
+export const solanaAgentState = Annotation.Root({
+  messages: Annotation<BaseMessage[]>({
+    reducer: messagesStateReducer,
+    default: () => [],
+  }),
+
+  isSolanaReadQuery: Annotation<boolean>({
+    reducer: (x, y) => y ?? x ?? false,
+    default: () => false,
+  }),
+
+  isSolanaWriteQuery: Annotation<boolean>({
+    reducer: (x, y) => y ?? x ?? false,
+    default: () => false,
+  }),
+
+  isGeneralQuery: Annotation<boolean>({
+    reducer: (x, y) => y ?? x ?? false,
+    default: () => false,
+  }),
+});