add Solana 2-of-2 multisig account creation and deposit tools

src/langchain/index.ts

@@ -2125,6 +2125,73 @@ export class SolanaFetchTokenDetailedReportTool extends Tool {
   }
 }
 
+export class SolanaCreate2by2Multisig extends Tool {
+  name = "create_2by2_multisig";
+  description = `Create a 2-of-2 multisig account on Solana.
+
+  Inputs (JSON string):
+  - creator: string, the public key of the creator (required).`;
+
+  constructor(private solanaKit: SolanaAgentKit) {
+    super();
+  }
+
+  protected async _call(input: string): Promise<string> {
+    try {
+      const inputFormat = JSON.parse(input);
+      const creator = new PublicKey(inputFormat.creator);
+
+      const multisig = await this.solanaKit.createSquadsMultisig(creator);
+
+      return JSON.stringify({
+        status: "success",
+        message: "2-by-2 multisig account created successfully",
+        multisig,
+      });
+    } catch (error: any) {
+      return JSON.stringify({
+        status: "error",
+        message: error.message,
+        code: error.code || "CREATE_2BY2_MULTISIG_ERROR",
+      });
+    }
+  }
+}
+
+export class SolanaDepositTo2by2Multisig extends Tool {
+  name = "deposit_to_2by2_multisig";
+  description = `Deposit funds to a 2-of-2 multisig account on Solana.
+
+  Inputs (JSON string):
+  - amount: number, the amount to deposit in SOL (required).`;
+
+  constructor(private solanaKit: SolanaAgentKit) {
+    super();
+  }
+
+  protected async _call(input: string): Promise<string> {
+    try {
+      const inputFormat = JSON.parse(input);
+      const amount = new Decimal(inputFormat.amount);
+
+      const tx = await this.solanaKit.depositToMultisig(amount.toNumber());
+
+      return JSON.stringify({
+        status: "success",
+        message: "Funds deposited to 2-by-2 multisig account successfully",
+        transaction: tx,
+        amount: amount.toString(),
+      });
+    } catch (error: any) {
+      return JSON.stringify({
+        status: "error",
+        message: error.message,
+        code: error.code || "DEPOSIT_TO_2BY2_MULTISIG_ERROR",
+      });
+    }
+  }
+}
+
 export function createSolanaTools(solanaKit: SolanaAgentKit) {
   return [
     new SolanaBalanceTool(solanaKit),
@@ -2179,5 +2246,7 @@ export function createSolanaTools(solanaKit: SolanaAgentKit) {
     new SolanaFetchTokenDetailedReportTool(solanaKit),
     new SolanaPerpOpenTradeTool(solanaKit),
     new SolanaPerpCloseTradeTool(solanaKit),
+    new SolanaCreate2by2Multisig(solanaKit),
+    new SolanaDepositTo2by2Multisig(solanaKit),
   ];
 }