mediar-ai/packages/skills/skills/slack-automator

Slack Message Automator

Schedule and automate Slack messages with rich formatting and attachments.

Prerequisites

• Slack desktop app installed, OR
• Chrome browser with Slack web open
• Logged into the target workspace

Instructions

1. Open Slack:

   Desktop App:

   • Activate the Slack application
   • Verify workspace is loaded

   Web Version:

   • Navigate to app.slack.com
   • Confirm logged in to correct workspace

2. Navigate to target channel/DM:

   a. Use Quick Switcher:

   • Press Cmd/Ctrl + K
   • Type channel name or person's name
   • Press Enter to select

   b. Verify correct destination:

   • Check channel name in header
   • Confirm you have permission to post

3. Compose the message:

   a. Click the message input field

   b. Type the message content:

   • Support markdown formatting:
     • bold with asterisks
     • italic with underscores
     • code with backticks

     • quotes with greater than

   • Add emoji with :emoji_name:
   • Mention users with @username
   • Link channels with #channel

   c. For attachments:

   • Click the + button
   • Select file to upload
   • Add optional comment

4. For scheduled messages:

   a. Instead of Send, click the dropdown arrow b. Select "Schedule for later" c. Choose date and time d. Confirm scheduling

5. Send or schedule the message:

   • Click Send button (or press Cmd/Ctrl + Enter)
   • Wait for confirmation

6. Verify delivery:

   • Check message appears in channel
   • For scheduled: verify in "Scheduled" section

Error Handling

• If channel not found, list available channels
• If no permission to post, inform user
• If attachment too large, suggest alternatives
• If rate limited, wait and retry

Notes

• Respects workspace message formatting settings
• Scheduled messages can be edited before sending
• For recurring messages, consider Slack Workflow Builder
• Thread replies: click "Reply in thread" first