feat: send transaction with proiority fee

src/langchain/index.ts

@@ -100,6 +100,51 @@ import {
   SolanaGetAllAssetsByOwner,
 } from "./index";
 
+export class SolanaSendTransactionWithPriorityFee extends Tool {
+  name = "solana_send_transaction_with_priority_fee";
+  description = `Sends a Solana transaction with a user-defined priority fee.
+
+  **Inputs (JSON-encoded string)**:
+  - priorityLevel: string — the priority level ("NONE", "Min", "Low", "Medium", "High", "VeryHigh", or "UnsafeMax")
+  - amount: number — the amount of SOL to send
+  - to: string — the recipient's wallet address (public key in base58);`;
+
+  constructor(private solanaKit: SolanaAgentKit) {
+    super();
+  }
+
+  protected async _call(input: string): Promise<string> {
+    try {
+      const { priorityLevel, amount, to } = JSON.parse(input);
+
+      if (!priorityLevel || !amount || !to) {
+        throw new Error(
+          `Missing required fields. Received: priorityLevel=${priorityLevel}, amount=${amount}, to=${to}`,
+        );
+      }
+      const toPubkey = new PublicKey(to);
+
+      const priorityFeeTx = await this.solanaKit.sendTranctionWithPriority(
+        priorityLevel,
+        amount,
+        toPubkey,
+      );
+
+      return JSON.stringify({
+        status: "success",
+        message: "Transaction sent successfully",
+        priorityFeeTx,
+      });
+    } catch (error: any) {
+      return JSON.stringify({
+        status: "error",
+        message: error.message,
+        code: error.code || "UNKNOWN_ERROR",
+      });
+    }
+  }
+}
+
 export function createSolanaTools(solanaKit: SolanaAgentKit) {
   return [
     new SolanaBalanceTool(solanaKit),