skills.rest
sigcli
sigcliOFFICIAL
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slack

Automates Slack messaging, searching, reading channels, and user lookup across workspaces.

280|25|Updated Apr 18, 2026
Search Tags:#automation#channels#credentials#slack#messages#edge-api
One-click install
npx skills add https://github.com/sigcli/sigcli --skill slack-sigcli
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: slack
Source: https://github.com/sigcli/sigcli/tree/main/skills/slack
Command: npx skills add https://github.com/sigcli/sigcli --skill slack-sigcli

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires requests>=2.28.0, and includes scripts (resource) components.

What problem does it solve?

Slack is a central hub for collaboration, but manually reading channels, searching conversations, and coordinating messages across workspaces is time-consuming and error-prone. This Skill automates Slack interactions to help AI agents access channel content, read unreads, search messages, send messages, manage reactions, and look up users.

Core Features & Use Cases

  • Read channels, search messages, check unreads, send messages, and look up users across Slack workspaces.
  • Trigger actions when Slack content or URLs are referenced by the user to drive automated workflows with agents.
  • Use in AI agents to fetch channel content, backfill unread messages, post updates, or reply in threads with consistent formatting and error handling.

Quick Start

Ask your AI agent to read messages from a channel and optionally post a reply.

Frequently Asked Questions about slack

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I automate reading and posting messages in Slack channels?▼

Automate Slack messages by using an AI agent to read channel content, search conversations, and post replies. The Skill handles Slack interactions like checking unreads and sending messages across workspaces with consistent formatting.

Can I search Slack conversations and backfill unread messages automatically?▼

Yes, you can search Slack conversations and backfill unread messages automatically. The Skill reads channel content and fetches unread history to drive automated workflows without manual checking.

Do I need credentials to use Slack automation for sending messages?▼

Yes, Slack automation requires credentials to authenticate. The Skill uses a SlackClient with Signet-provided credentials to read channels and send messages, supporting enterprise fallbacks via edge APIs.

What's the best way to post updates and reply in Slack threads with an AI agent?▼

The best way to post updates and reply in Slack threads is to trigger the AI agent when Slack URLs are referenced. The Skill formats and sends messages with consistent error handling across workspaces.

Does this Slack automation tool support looking up users and managing reactions?▼

Yes, this Slack automation tool supports looking up users and managing reactions. It accesses channel content, looks up user profiles, and coordinates message reactions across enterprise workspaces.

Why use edge APIs for Slack message automation in enterprise workspaces?▼

Edge APIs provide enterprise fallbacks for Slack message automation when standard credentials are insufficient. The Skill routes requests through edge APIs to maintain access for reading and posting messages across workspaces.

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