Slack summarization

When to use this skill

The user asks to summarize Slack ("what happened in #eng-platform this week", "what did Alice say about the launch", "catch me up on the design channel").

Required inputs

Confirm before searching:

• Which channel(s) or thread(s)? Don't guess if ambiguous.
• What time window? Default to the last 7 days when not specified, but say so.

Output shape

Produce three concise sections:

1. Key decisions — explicit choices that were made, with the deciding message cited.
2. Open questions — things asked but not answered, with the asking message cited.
3. Action items — @mention who owes what by when, only if explicitly stated. Don't invent assignees.

What not to do

• Never produce a chronological play-by-play of every message — distill.
• Never quote private messages without flagging them as such.
• If the channel was empty in the time window, say so — don't fabricate filler.