As tarefas agendadas de dia da semana do Mac OS High Sierra com o launchd não estão funcionando, por quê?

Question

Em um esforço para melhorar minha produtividade e reduzir distrações (depois de ouvir 'Deep Work' por Cal Newport no Audible), decidi iniciar e fechar automaticamente os aplicativos de e-mail e IM no meu Mac em certas horas do dia, permitindo-me concentrar-me no trabalho produtivo o resto do tempo. Eu montei dois scripts de maçã que funcionam bem no Terminal:

Script 1: /Users/$USER/Documents/dev/apple_scripts/open_comms_apps.scpt

# Open messaging & comms apps.
tell application "Microsoft Outlook.app"
    if not (exists window 1) then activate
end tell
tell application "Slack.app"
    if not (exists window 2) then launch
end tell
tell application "Skype.app"
    launch
end tell

Script 2: /Users/$USER/Documents/dev/apple_scripts/close_comms_apps.scpt

# Close messaging & comms apps.
tell application "Microsoft Outlook.app"
    if (exists window 1) then quit
end tell
tell application "Slack.app"
    quit
end tell
tell application "Skype.app"
    quit
end tell

NB: já atribuí o Outlook, o Slack e o Skype aos seus próprios computadores.

O que eu queria fazer era abri-los 3 vezes por dia durante a semana, então criei os seguintes arquivos plist para launchd.

Scheduled task 1: /Users/$USER/Library/LaunchAgents/com.open.comms.apps.plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>Disabled</key>
    <false/>
    <key>Label</key>
    <string>com.open.comms.apps</string>
    <key>KeepAlive</key>
    <false/>
    <key>RunAtLoad</key>
    <true/>
    <key>Program</key>
    <string>/usr/bin/osascript</string>
    <key>ProgramArguments</key>
    <array>
        <string>osascript</string>
        <string>/Users/$USER/Documents/dev/apple_scripts/open_comms_apps.scpt</string>
    </array>
    <key>StartCalendarInterval</key>
    <array>
        <dict>
            <key>Weekday</key>
            <integer>1</integer>
            <key>Hour</key>
            <integer>9</integer>
            <key>Minute</key>
            <integer>0</integer>
        </dict>
        <dict>
            <key>Weekday</key>
            <integer>1</integer>
            <key>Hour</key>
            <integer>13</integer>
            <key>Minute</key>
            <integer>0</integer>
        </dict>
        <dict>
            <key>Weekday</key>
            <integer>1</integer>
            <key>Hour</key>
            <integer>16</integer>
            <key>Minute</key>
            <integer>30</integer>
        </dict>
        <dict>
            <key>Weekday</key>
            <integer>2</integer>
            <key>Hour</key>
            <integer>9</integer>
            <key>Minute</key>
            <integer>0</integer>
        </dict>
        <dict>
            <key>Weekday</key>
            <integer>2</integer>
            <key>Hour</key>
            <integer>13</integer>
            <key>Minute</key>
            <integer>0</integer>
        </dict>
        <dict>
            <key>Weekday</key>
            <integer>2</integer>
            <key>Hour</key>
            <integer>16</integer>
            <key>Minute</key>
            <integer>30</integer>
        </dict>
        <dict>
            <key>Weekday</key>
            <integer>3</integer>
            <key>Hour</key>
            <integer>9</integer>
            <key>Minute</key>
            <integer>0</integer>
        </dict>
        <dict>
            <key>Weekday</key>
            <integer>3</integer>
            <key>Hour</key>
            <integer>13</integer>
            <key>Minute</key>
            <integer>0</integer>
        </dict>
        <dict>
            <key>Weekday</key>
            <integer>3</integer>
            <key>Hour</key>
            <integer>16</integer>
            <key>Minute</key>
            <integer>30</integer>
        </dict>
        <dict>
            <key>Weekday</key>
            <integer>4</integer>
            <key>Hour</key>
            <integer>9</integer>
            <key>Minute</key>
            <integer>0</integer>
        </dict>
        <dict>
            <key>Weekday</key>
            <integer>4</integer>
            <key>Hour</key>
            <integer>13</integer>
            <key>Minute</key>
            <integer>0</integer>
        </dict>
        <dict>
            <key>Weekday</key>
            <integer>4</integer>
            <key>Hour</key>
            <integer>16</integer>
            <key>Minute</key>
            <integer>30</integer>
        </dict>
        <dict>
            <key>Weekday</key>
            <integer>5</integer>
            <key>Hour</key>
            <integer>9</integer>
            <key>Minute</key>
            <integer>0</integer>
        </dict>
        <dict>
            <key>Weekday</key>
            <integer>5</integer>
            <key>Hour</key>
            <integer>13</integer>
            <key>Minute</key>
            <integer>0</integer>
        </dict>
        <dict>
            <key>Weekday</key>
            <integer>5</integer>
            <key>Hour</key>
            <integer>16</integer>
            <key>Minute</key>
            <integer>30</integer>
        </dict>
    </array>
</dict>
</plist>

Scheduled task 2: /Users/$USER/Library/LaunchAgents/com.close.comms.apps.plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>Disabled</key>
    <false/>
    <key>Label</key>
    <string>com.close.comms.apps</string>
    <key>KeepAlive</key>
    <false/>
    <key>RunAtLoad</key>
    <true/>
    <key>Program</key>
    <string>/usr/bin/osascript</string>
    <key>ProgramArguments</key>
    <array>
        <string>osascript</string>
        <string>/Users/$USER/Documents/dev/apple_scripts/close_comms_apps.scpt</string>
    </array>
    <key>StartCalendarInterval</key>
    <array>
        <dict>
            <key>Weekday</key>
            <integer>1</integer>
            <key>Hour</key>
            <integer>9</integer>
            <key>Minute</key>
            <integer>30</integer>
        </dict>
        <dict>
            <key>Weekday</key>
            <integer>1</integer>
            <key>Hour</key>
            <integer>13</integer>
            <key>Minute</key>
            <integer>30</integer>
        </dict>
        <dict>
            <key>Weekday</key>
            <integer>1</integer>
            <key>Hour</key>
            <integer>16</integer>
            <key>Minute</key>
            <integer>45</integer>
        </dict>
        <dict>
            <key>Weekday</key>
            <integer>2</integer>
            <key>Hour</key>
            <integer>9</integer>
            <key>Minute</key>
            <integer>30</integer>
        </dict>
        <dict>
            <key>Weekday</key>
            <integer>2</integer>
            <key>Hour</key>
            <integer>13</integer>
            <key>Minute</key>
            <integer>30</integer>
        </dict>
        <dict>
            <key>Weekday</key>
            <integer>2</integer>
            <key>Hour</key>
            <integer>16</integer>
            <key>Minute</key>
            <integer>45</integer>
        </dict>
        <dict>
            <key>Weekday</key>
            <integer>3</integer>
            <key>Hour</key>
            <integer>9</integer>
            <key>Minute</key>
            <integer>30</integer>
        </dict>
        <dict>
            <key>Weekday</key>
            <integer>3</integer>
            <key>Hour</key>
            <integer>13</integer>
            <key>Minute</key>
            <integer>30</integer>
        </dict>
        <dict>
            <key>Weekday</key>
            <integer>3</integer>
            <key>Hour</key>
            <integer>16</integer>
            <key>Minute</key>
            <integer>45</integer>
        </dict>
        <dict>
            <key>Weekday</key>
            <integer>4</integer>
            <key>Hour</key>
            <integer>9</integer>
            <key>Minute</key>
            <integer>30</integer>
        </dict>
        <dict>
            <key>Weekday</key>
            <integer>4</integer>
            <key>Hour</key>
            <integer>13</integer>
            <key>Minute</key>
            <integer>30</integer>
        </dict>
        <dict>
            <key>Weekday</key>
            <integer>4</integer>
            <key>Hour</key>
            <integer>16</integer>
            <key>Minute</key>
            <integer>45</integer>
        </dict>
        <dict>
            <key>Weekday</key>
            <integer>5</integer>
            <key>Hour</key>
            <integer>9</integer>
            <key>Minute</key>
            <integer>30</integer>
        </dict>
        <dict>
            <key>Weekday</key>
            <integer>5</integer>
            <key>Hour</key>
            <integer>13</integer>
            <key>Minute</key>
            <integer>30</integer>
        </dict>
        <dict>
            <key>Weekday</key>
            <integer>5</integer>
            <key>Hour</key>
            <integer>16</integer>
            <key>Minute</key>
            <integer>45</integer>
        </dict>
    </array>
</dict>
</plist>

NB: Eu tentei isso com nome de usuário codificado nos caminhos de arquivo e na variável de sistema $ USER.

Eu alterei as permissões nos scripts e carreguei os arquivos plist via terminal da seguinte forma:

chmod 755 /Users/$USER/Documents/dev/apple_scripts/open_comms_apps.scpt
chmod 755 /Users/$USER/Documents/dev/apple_scripts/close_comms_apps.scpt
launchctl load -w /Users/$USER/Library/LaunchAgents/com.open.comms.apps.plist
launchctl load -w /Users/$USER/Library/LaunchAgents/com.close.comms.apps.plist

Como muitos podem esperar, isso não funcionou e quando eu tento iniciar as tarefas agendadas manualmente:

launchctl start /Users/$USER/Library/LaunchAgents/com.open.comms.apps.plist
launchctl start /Users/$USER/Library/LaunchAgents/com.close.comms.apps.plist

Nada acontece.

Alguém por aí (com mais de uma experiência de < 1 dias com script de maçã e launchd), por favor, informe como fazer isso funcionar?