Slack bot that summarizes channels you were away from

Every time I take more than two days off I come back to Slack chaos. I want a bot that I can install, point at the channels I care about, and ask 'what did I miss this week?' It should give me a bulleted summary per channel: decisions made, action items that involve me, and anything still unresolved. Threads should be collapsible. It shouldn't try to summarize every message — just the ones that actually mattered. A daily digest mode for ongoing use would be a nice bonus.