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

# Send Slack message

> Send a message to the user via Slack.

{/* Tool: send_slack_message */}

## Parameters

<ParamField path="message" type="string" required={true}>
  The text content (Slack mrkdwn). May be empty when media\_files is provided.
</ParamField>

<ParamField path="thread_id" type="string" default={""}>
  Optional Slack thread\_ts to send into. Overrides channel\_id/current context destination.
</ParamField>

<ParamField path="channel_id" type="string" default={""}>
  Optional Slack channel ID to send into when not targeting a thread.
</ParamField>

<ParamField path="media_files" type="string[]" default={[]}>
  Absolute file paths to send as file attachments (e.g., \["/home/workspace/Images/chart.png"]).
</ParamField>
