Can't use System Events when using Launch Daemons and Agents

Question

I'm writing a little Go program that uses osascript (based on mac2mqtt):

func getCommandOutput(name string, arg ...string) string {
    var outbuf, errbuf strings.Builder // or bytes.Buffer
    cmd := exec.Command(name, arg...)
    cmd.Stdout = &outbuf
    cmd.Stderr = &errbuf

    err := cmd.Run();

    stdout := outbuf.String()
    stderr := errbuf.String()

    if err != nil {
        log.Println(stderr)
        log.Fatal(stderr)
    }

    return strings.TrimSuffix(stdout, "\n")
}

func main() {
    runCommand("/usr/bin/osascript", "-e", "tell application \"zoom.us\"", "-e", "tell application \"System Events\"", "-e", "keystroke \"a\" using {shift down, command down}", "-e", "end tell", "-e", "end tell")
}

After compiling this code into a file called mac2mqttzoom I get an executable. I run chmod +x mac2mqttzoom, run it from Visual Studio Code, and get this dialog:

I hit OK and all is good. Then I create a LaunchAgent file:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
    <dict>
        <key>Label</key>
        <string>com.adriaan.mac2mqttzoom</string>
        <key>Program</key>
        <string>/Users/adriaan/mac2mqtt/mac2mqttzoom</string>
        <key>WorkingDirectory</key>
        <string>/Users/adriaan/mac2mqtt/</string>
        <key>StandardOutPath</key>
        <string>/Users/adriaan/mac2mqtt/standard.log</string>
        <key>StandardErrorPath</key>
        <string>/Users/adriaan/mac2mqtt/error.log</string>
        <key>RunAtLoad</key>
        <true/>
        <key>KeepAlive</key>
        <true/>
    </dict>
</plist>

But when I run this program I get this error:

System Events got an error: osascript is not allowed assistive access. (-25211)

Only when running with Launch Daemons and Agents.

I gave permission via Acccessibility to all relevant apps:

Answer 1

Thanks, @gordon-davisson for guiding me in the right direction.

I moved my plist-file to /Library/LaunchDaemons/ and readded my binary to the Accesibility apps in System Preferences:

You need to do this every time your binary changes. I didn't do that before. So for everybody that encounters this issue as well:

1. Update your own app/binary
2. Remove it from the Accessibility list
3. Add it back to the list (via the + or drag and drop)
4. Unload & load your app again
   • sudo launchctl unload /Library/LaunchDaemons/your.app.plist
   • sudo launchctl load /Library/LaunchDaemons/your.app.plist