waiaas

Instructions

Implementation Reference

• packages/mcp/src/tools/encode-calldata.ts:31-40 (handler)

  The actual handler function for the `encode_calldata` tool, which performs an API call to encode the calldata.

  async (args) => {
    const body: Record<string, unknown> = {
      abi: args.abi,
      functionName: args.functionName,
      args: args.args ?? [],
    };
    if (args.wallet_id) body.walletId = args.wallet_id;
    const result = await apiClient.post('/v1/utils/encode-calldata', body);
    return toToolResult(result);
  },

• packages/mcp/src/tools/encode-calldata.ts:25-30 (schema)

  Input schema validation for the `encode_calldata` tool using Zod.

  {
    abi: z.array(z.record(z.unknown())).describe('ABI fragment array for the function (JSON array of objects)'),
    functionName: z.string().describe('Function name to encode (e.g., "transfer", "approve")'),
    args: z.array(z.any()).optional().describe('Function arguments array (e.g., ["0xAddress", "1000000"]). Omit for zero-arg functions.'),
    wallet_id: z.string().optional().describe('Target wallet ID. Required for multi-wallet sessions; auto-resolved when session has a single wallet.'),
  },

• packages/mcp/src/tools/encode-calldata.ts:14-42 (registration)

  Registration function that defines the `encode_calldata` MCP tool.

  export function registerEncodeCalldata(
    server: McpServer,
    apiClient: ApiClient,
    walletContext?: WalletContext,
  ): void {
    server.tool(
      'encode_calldata',
      withWalletPrefix(
        'Encode EVM function call into calldata hex. Provide ABI fragment array, function name, and arguments. Returns hex calldata and function selector for use with call_contract.',
        walletContext?.walletName,
      ),
      {
        abi: z.array(z.record(z.unknown())).describe('ABI fragment array for the function (JSON array of objects)'),
        functionName: z.string().describe('Function name to encode (e.g., "transfer", "approve")'),
        args: z.array(z.any()).optional().describe('Function arguments array (e.g., ["0xAddress", "1000000"]). Omit for zero-arg functions.'),
        wallet_id: z.string().optional().describe('Target wallet ID. Required for multi-wallet sessions; auto-resolved when session has a single wallet.'),
      },
      async (args) => {
        const body: Record<string, unknown> = {
          abi: args.abi,
          functionName: args.functionName,
          args: args.args ?? [],
        };
        if (args.wallet_id) body.walletId = args.wallet_id;
        const result = await apiClient.post('/v1/utils/encode-calldata', body);
        return toToolResult(result);
      },
    );
  }