# Slack Message Sender

> Use this tool when you need to send notifications or updates to team members through Slack channels, and want to automate message sending and thread replies. It solves communication and collaboration problems by enabling seamless integration with Slack, supporting channel name resolution and compatibility with Claude Desktop and KADI agents. The tool takes in message content and channel information as inputs and outputs sent messages and replies in Slack threads.

Canonical page: https://skillsregistry.net/skills/a-g-e-n-t-s-mcp-server-slack  
JSON: https://api.skillsregistry.net/v1/skills/a-g-e-n-t-s-mcp-server-slack

## Description

MCP server for sending messages to Slack channels and replying in threads, with automatic channel name resolution and support for Claude Desktop and KADI agents.

## Trust

- **Trust score (0–1):** 0.69
- **Verification tier:** scanned
- **Last scanned:** 2026-08-30

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** communication
- **Updated:** 2026-08-30

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/cu0b334ak4)
- **Repository:** <https://github.com/a-g-e-n-t-s/mcp-server-slack>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "a-g-e-n-t-s-mcp-server-slack"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/a-g-e-n-t-s-mcp-server-slack` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/a-g-e-n-t-s-mcp-server-slack/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt