Slack Messaging

This wraps slackcli to let Claude send and read Slack messages directly from the command line. You'd reach for it when you want an AI agent to post updates, fetch conversation history, or interact with channels without writing custom Slack API code. It's part of obra's superpowers-lab collection and has 225 installs, though it's worth noting it failed a couple security audits. Setup requires downloading the appropriate binary for your platform and configuring a Slack token. The underlying tool is straightforward, which means this is really just giving Claude the ability to automate your Slack interactions without you building the plumbing yourself.