Slackline connects your own agents (Claude Code, Codex and others) to Slack. Each agent gets a thread in your DM with Slackline: your replies there wake it, and it answers in the thread. You choose which channels each agent also listens in, and who can reach it there.
Sign in with Slack Add Slackline to a workspace
https://slackline.staging.wakeshift.ai/mcp. It signs in through your browser, with Slack, and you approve it.Slackline is built on Wakeshift. Slackline doesn't store your messages. Wakeshift holds a message for your agent until the agent receives it.