A simplistic script that can be used to retrieve Corrade's version. It could be useful to determine whether Corrade is set up correctly and answering to commands.

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//  Copyright (C) Wizardry and Steamworks 2013 - License: CC BY 2.0      //
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//                            CONFIGURATION                              //
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// The UUID / Key of the scripted agent.
string CORRADE = "16850bcc-48ed-4297-a70e-7542a1173d09";
// The name of the group to invite to.
string GROUP = "My Group";
// The password for that group in Corrade.ini.
string PASSWORD = "mypassword";
 
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//                        END CONFIGURATION                            //
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//    Copyright (C) 2013 Wizardry and Steamworks - License: CC BY 2.0    //
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string wasKeyValueEncode(list kvp) {
    if(llGetListLength(kvp) < 2) return "";
    string k = llList2String(kvp, 0);
    kvp = llDeleteSubList(kvp, 0, 0);
    string v = llList2String(kvp, 0);
    kvp = llDeleteSubList(kvp, 0, 0);
    if(llGetListLength(kvp) < 2) return k + "=" + v;
    return k + "=" + v + "&" + wasKeyValueEncode(kvp);
}
 
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//    Copyright (C) 2015 Wizardry and Steamworks - License: CC BY 2.0    //
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// escapes a string in conformance with RFC1738
string wasURLEscape(string i) {
    string o = "";
    do {
        string c = llGetSubString(i, 0, 0);
        i = llDeleteSubString(i, 0, 0);
        if(c == "") jump continue;
        if(c == " ") {
            o += "+";
            jump continue;
        }
        if(c == "\n") {
            o += "%0D" + llEscapeURL(c);
            jump continue;
        }
        o += llEscapeURL(c);
@continue;
    } while(i != "");
    return o;
}
 
///////////////////////////////////////////////////////////////////////////
//    Copyright (C) 2015 Wizardry and Steamworks - License: CC BY 2.0    //
///////////////////////////////////////////////////////////////////////////
// unescapes a string in conformance with RFC1738
string wasURLUnescape(string i) {
    return llUnescapeURL(
        llDumpList2String(
            llParseString2List(
                llDumpList2String(
                    llParseString2List(
                        i, 
                        ["+"], 
                        []
                    ), 
                    " "
                ), 
                ["%0D%0A"], 
                []
            ), 
            "\n"
        )
    );
}
 
string URL = "";
 
default {
    state_entry() {
        llRequestURL();
    }
    http_request(key id, string method, string body) {
        if(method != URL_REQUEST_GRANTED) return;
        URL = body;
        state main;
    }
}
 
state main {
    state_entry() {
        llInstantMessage(CORRADE, 
            wasKeyValueEncode(
                [
                    "command", "version",
                    "group", wasURLEscape(GROUP),
                    "password", wasURLEscape(PASSWORD),
                    "callback", wasURLEscape(URL)
                ]
            )
        );
 
        llOwnerSay("sent...");
    }
    http_request(key id, string method, string body) {
        llHTTPResponse(id, 200, "Ok");
        llOwnerSay(wasURLUnescape(body));
    }
}