Skill2.7k repo starsupdated 7d ago

slack

The slack skill enables programmatic control of Slack workspaces through actions like adding emoji reactions to messages, pinning or unpinning content in channels or DMs, sending or editing messages, and retrieving member information and custom emoji lists. Use this skill when workflows need to interact with Slack without manual intervention, such as automatically reacting to messages, managing pinned items, or posting updates to channels.

View source Repository: moltis

Install in Claude Code

Copy

git clone --depth 1 https://github.com/moltis-org/moltis /tmp/slack && cp -r /tmp/slack/crates/skills/src/assets/productivity/slack ~/.claude/skills/slack

Then start a new Claude Code session; the skill loads automatically.

Definition

SKILL.md

# Slack Actions

## Overview

Use `slack` to react, manage pins, send/edit/delete messages, and fetch member info. The tool uses the bot token configured for Moltis.

## Inputs to collect

- `channelId` and `messageId` (Slack message timestamp, e.g. `1712023032.1234`).
- For reactions, an `emoji` (Unicode or `:name:`).
- For message sends, a `to` target (`channel:<id>` or `user:<id>`) and `content`.

Message context lines include `slack message id` and `channel` fields you can reuse directly.

## Actions

### Action groups

| Action group | Default | Notes                  |
| ------------ | ------- | ---------------------- |
| reactions    | enabled | React + list reactions |
| messages     | enabled | Read/send/edit/delete  |
| pins         | enabled | Pin/unpin/list         |
| memberInfo   | enabled | Member info            |
| emojiList    | enabled | Custom emoji list      |

### React to a message

```json
{
  "action": "react",
  "channelId": "C123",
  "messageId": "1712023032.1234",
  "emoji": "✅"
}
```

### List reactions

```json
{
  "action": "reactions",
  "channelId": "C123",
  "messageId": "1712023032.1234"
}
```

### Send a message

```json
{
  "action": "sendMessage",
  "to": "channel:C123",
  "content": "Hello from Moltis"
}
```

### Edit a message

```json
{
  "action": "editMessage",
  "channelId": "C123",
  "messageId": "1712023032.1234",
  "content": "Updated text"
}
```

### Delete a message

```json
{
  "action": "deleteMessage",
  "channelId": "C123",
  "messageId": "1712023032.1234"
}
```

### Read recent messages

```json
{
  "action": "readMessages",
  "channelId": "C123",
  "limit": 20
}
```

### Pin a message

```json
{
  "action": "pinMessage",
  "channelId": "C123",
  "messageId": "1712023032.1234"
}
```

### Unpin a message

```json
{
  "action": "unpinMessage",
  "channelId": "C123",
  "messageId": "1712023032.1234"
}
```

### List pinned items

```json
{
  "action": "listPins",
  "channelId": "C123"
}
```

### Member info

```json
{
  "action": "memberInfo",
  "userId": "U123"
}
```

### Emoji list

```json
{
  "action": "emojiList"
}
```

## Ideas to try

- React with ✅ to mark completed tasks.
- Pin key decisions or weekly status updates.