Slack Extended

Extends the core slack skill with file uploads and canvas management. Uses Python scripts that call the Slack API directly with the bot token from ~/.openclaw/openclaw.json.

Requires OAuth scopes: files:write, canvases:write (add at api.slack.com if missing).

File Upload

Upload a local file to a Slack channel:

python3 /mnt/openclaw/skills/slack-extended/scripts/slack_file_upload.py \
  --channel C123ABC \
  --file /path/to/file.png \
  --title "Q4 Report" \
  --message "Here's the latest report"