fix: Fix Parameter Parsing in plugin-evm TransferAction and Return Transaction Hash

packages/plugin-evm/src/actions/transfer.ts

@@ -14,6 +14,8 @@ import type { Transaction, TransferParams } from "../types";
 import { transferTemplate } from "../templates";
 
 export { transferTemplate };
+
+// Exported for tests
 export class TransferAction {
     constructor(private walletProvider: WalletProvider) {}
 
@@ -22,6 +24,12 @@ export class TransferAction {
             `Transferring: ${params.amount} tokens to (${params.toAddress} on ${params.fromChain})`
         );
 
+        if (!params.data) {
+            params.data = "0x";
+        }
+
+        await this.walletProvider.switchChain(params.fromChain);
+
         const walletClient = this.walletProvider.getWalletClient(
             params.fromChain
         );
@@ -106,29 +114,44 @@ export const transferAction = {
         options: any,
         callback?: HandlerCallback
     ) => {
-        try {
-            const walletProvider = initWalletProvider(runtime);
-            const action = new TransferAction(walletProvider);
-            const transferDetails = await buildTransferDetails(
-                state,
-                runtime,
-                walletProvider
-            );
-            const tx = await action.transfer(transferDetails);
+        console.log("Transfer action handler called");
+        const walletProvider = initWalletProvider(runtime);
+        const action = new TransferAction(walletProvider);
+
+        // Compose transfer context
+        const transferContext = composeContext({
+            state,
+            template: transferTemplate,
+        });
+
+        // Generate transfer content
+        const content = await generateObjectDeprecated({
+            runtime,
+            context: transferContext,
+            modelClass: ModelClass.LARGE,
+        });
+
+        const paramOptions: TransferParams = {
+            fromChain: content.fromChain,
+            toAddress: content.toAddress,
+            amount: content.amount,
+            data: content.data,
+        };
 
+        try {
+            const transferResp = await action.transfer(paramOptions);
             if (callback) {
                 callback({
-                    text: `Successfully transferred ${formatEther(tx.value)} tokens to ${tx.to}\nTransaction hash: ${tx.hash}\nChain: ${transferDetails.fromChain}`,
+                    text: `Successfully transferred ${paramOptions.amount} tokens to ${paramOptions.toAddress}\nTransaction Hash: ${transferResp.hash}`,
                     content: {
                         success: true,
-                        hash: tx.hash,
-                        amount: formatEther(tx.value),
-                        recipient: tx.to,
-                        chain: transferDetails.fromChain,
+                        hash: transferResp.hash,
+                        amount: formatEther(transferResp.value),
+                        recipient: transferResp.to,
+                        chain: content.fromChain,
                     },
                 });
             }
-
             return true;
         } catch (error) {
             console.error("Error during token transfer:", error);

packages/plugin-evm/src/templates/index.ts

@@ -5,17 +5,19 @@ export const transferTemplate = `Given the recent messages and wallet informatio
 {{walletInfo}}
 
 Extract the following information about the requested transfer:
-- Chain to execute on (like in viem/chains)
-- Amount to transfer (only number without coin symbol)
-- Recipient address
+- Chain to execute on: Must be one of ["ethereum", "base", ...] (like in viem/chains)
+- Amount to transfer: Must be a string representing the amount in ETH (only number without coin symbol, e.g., "0.1")
+- Recipient address: Must be a valid Ethereum address starting with "0x"
+- Token symbol or address (if not native token): Optional, leave as null for ETH transfers
 
-Respond with a JSON markdown block containing only the extracted values:
+Respond with a JSON markdown block containing only the extracted values. All fields except 'token' are required:
 
 \`\`\`json
 {
     "fromChain": SUPPORTED_CHAINS,
     "amount": string,
-    "toAddress": string
+    "toAddress": string,
+    "token": string | null
 }
 \`\`\`
 `;