> ## Documentation Index
> Fetch the complete documentation index at: https://docs.r28.ai/charter/llms.txt
> Use this file to discover all available pages before exploring further.

# reactions_add

> Add an emoji reaction to a Slack message.

<div className="tool-route"><span className="tool-row-method" data-method="POST">POST</span><code>{"https://slack.com/api/reactions.add"}</code></div>

```python slack_reactions_add.py theme={null}
from charter.packs import slack

result = await slack.reactions_add.ainvoke({"channel": ..., "timestamp": ..., "name": ...})
```

<Note>
  Requires `chat:write`, `channels:read`, `groups:read`, `im:read`, `mpim:read`, `channels:history`, `groups:history`, `im:history`, `mpim:history`, `users:read`, `reactions:write`.
</Note>

## Body

<div className="reference-table">
  | Field                                                             | Type     | Description                                                                                                                           |
  | ----------------------------------------------------------------- | -------- | ------------------------------------------------------------------------------------------------------------------------------------- |
  | `channel` <span className="required" title="required">\*</span>   | `string` | Channel where the message to add reaction to was posted.                                                                              |
  | `timestamp` <span className="required" title="required">\*</span> | `string` | Timestamp of the message to add reaction to.                                                                                          |
  | `name` <span className="required" title="required">\*</span>      | `string` | Reaction (emoji) name, without surrounding colons — e.g. 'thumbsup'. Skin tone modifiers are supported, e.g. 'thumbsup::skin-tone-6'. |
</div>