Slack Master

This is NOT a user-facing skill. It's a shared resource library referenced by Slack integration skills.

Purpose

Provides shared resources to eliminate duplication across:

• slack-connect - Meta-skill for Slack workspace operations
• slack-send-message - Send messages to channels/DMs
• slack-list-channels - List available channels
• slack-search-messages - Search message history
• And 29 other operation skills...

Instead of loading this skill, users directly invoke the specific skill they need above.

Architecture: DRY Principle