Compress social creatives from Slack
When a campaign image URL is shared, let Kraken.io reduce its file size before it gets lost in the next task switch.
Trigger
Channel Message Received
Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.
Action
Optimize Image by URL
Tool to optimize an image from a public url. use when you need to compress, resize, or convert an externally hosted image. returns result immediately if 'wait' is true.
Why this helps
Social assets compete with copy, approvals, and scheduling, so file preparation is easy to overlook.
- Reduce one manual step in campaign asset preparation.
- Keep image optimization attached to the campaign discussion.
- Return an optimization result for the team to use.
Setup
Build it in a few focused steps.
- 1Connect Slack and Kraken.io to Notis once.
- 2Create an automation through the portal or by asking Notis in plain language.
- 3In one instruction, ask Notis to optimize public image URLs shared with social campaign creative and return the result.
- 4Pick the Slack channel message trigger and a channel for run reports.
- 5Test with a public image URL from a social post draft.
Questions about this workflow
Can the workflow handle multiple social platforms?
The prompt can describe the campaign context; Kraken.io optimizes the image URL, while publishing remains a separate task.
What should I share in Slack?
Share a public image URL that Kraken.io can access.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Slack to Kraken io. A trigger fires from one place; an action lands in another.
Slack triggers
Kraken io actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Check Kraken.io User Status
Tool to retrieve current kraken.io account status and quota usage. use when you need to verify plan limits and remaining quota before processing images.
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Optimize Image by URL
Tool to optimize an image from a public url. use when you need to compress, resize, or convert an externally hosted image. returns result immediately if 'wait' is true.
New Channel Created Trigger
Triggered when a new channel is created in Slack.
Preserve Image Metadata
Tool to preserve exif and other metadata during kraken.io image optimization. use when you need to maintain metadata while compressing images.
Channel Message Received
Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.
Sandbox Image Upload
Tool to upload and optimize images in sandbox mode. use when you want to test the kraken.io api without consuming credits.
Direct Message Received
Triggered when a new direct message (DM) is sent to a user in Slack. Catches all DMs across all DM channels.
Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
Message Reaction Removed
Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.
Reaction Added Trigger
DEPRECATED: use `SLACK_MESSAGE_REACTION_ADDED` instead. Triggered when a reaction is added to a message in Slack.
Connect any two apps with Notis in the middle.
Slack and Kraken io, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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