Slack Search

anthropics/knowledge-work-pluginsOfficial

Comprehensive reference for searching Slack when you need to find messages, files, or people buried in your workspace. Covers the four search tools (public only, public and private, channels, users), plus detailed modifiers for filtering by channel, user, date, and content type. The search strategy section is genuinely helpful: start broad, use natural language for fuzzy searches and keywords for exact matches, and break complex questions into multiple searches rather than trying to nail it in one shot. Also calls out what doesn't work, like Boolean operators and parentheses, which will save you from banging your head against limitations. If you're building anything that needs to dig through Slack history, this is the reference to keep handy.

skills.sh installs: 3.3K
GitHub stars: 35.3K
last updated: Aug 21, 2026

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Install

$ npx -y skills add anthropics/knowledge-work-plugins --skill slack-search --agent claude-code

Installs into .claude/skills of the current project.

Files

Slack Search

This skill provides guidance for effectively searching Slack to find messages, files, and information.

When to Use

Apply this skill whenever you need to find information in Slack — including when a user asks you to locate messages, conversations, files, or people, or when you need to gather context before answering a question about what's happening in Slack.

Search Tools Overview

Tool	Use When
`slack_search_public`	Searching public channels only. Does not require user consent.
`slack_search_public_and_private`	Searching all channels including private, DMs, and group DMs. Requires user consent.
`slack_search_channels`	Finding channels by name or description.
`slack_search_users`	Finding people by name, email, or role.