Install this Claude Code skill.
Name: Slack Channel Summarizer
Save to: ~/.claude/skills/slack-channel-summarizer.md

---
---
name: Slack Channel Summarizer
description: Summarize recent activity in a Slack channel
---

Summarize the recent messages in Slack channel $ARGUMENTS.

## Prerequisites

This skill requires the Slack MCP server to be configured. Ensure you have
`@modelcontextprotocol/server-slack` set up with a valid bot token.

## Steps

1. Use `slack_get_channel_history` to fetch the last 50 messages from the channel
2. Group messages into conversation threads
3. Identify and extract:
   - **Key decisions** — anything that was agreed on
   - **Action items** — tasks assigned or volunteered for (include who)
   - **Open questions** — things still unresolved
   - **FYIs** — important announcements or links shared
4. Produce a summary in this format:

## Output format

```markdown
# #channel-name Summary (last 24h)

## Key Decisions
- Decision description (@person)

## Action Items
- [ ] Task description — @assignee

## Open Questions
- Question that needs a response

## FYIs
- Notable announcements or shared links
```

## Constraints

- Do NOT include message timestamps or internal IDs
- Collapse threads into a single summary line unless they contain a decision
- If the channel has <5 messages, say "Low activity — nothing to summarize"