Slack AI summarizes Slack. Heidi lives in Slack but her brain spans meetings, tickets, docs, code, and email too, and she acts: agents, scheduled jobs, and answers any AI tool can read over MCP.
Channel summaries are useful and shallow: they compress what was said, in one tool, recently. Heidi consolidates what is true across every connected system and keeps it, so the answer in Slack draws on the meeting from March and the ticket from yesterday.
Slack is Heidi's favorite room, not her world. The same brain answers in Teams, in her own chat, and over the API.