How to Search Slack with Claude
Search Slack messages with Claude and ToolRouter. Find past decisions and conversations instantly.
Tool
Claude searches Slack and synthesises the results — it does not just return raw messages but identifies the key decision or point from across multiple threads and explains the context. Useful for reconstructing a decision history or understanding what was agreed months ago.
Connect ToolRouter to Claude
1Open connector settings Open Settings
2Add a custom connector with these details
Name
ToolRouterURL
https://api.toolrouter.com/mcp3Let Claude set you up Open Claude
Steps
Once connected (see setup above), use the Slack tool:
- Ask: "Search Slack for discussions about [topic]"
- Claude searches your workspace and returns relevant messages
- Ask: "What was the decision that came out of this discussion?"
- Claude synthesises the thread into a clear summary of what was decided and by whom
Example Prompt
Try this with Claude using the Slack tool
Search Slack for any messages about the database migration plan from the last 60 days. Summarise what was decided and who was involved.
Tips
- Ask Claude to identify the final decision from a long thread rather than reading every message
- Search across multiple keywords if a topic has different names in different channels
- Ask Claude to find the first time a topic was mentioned to trace how a decision evolved