Mark Slack image messages after Astica review
Use a scheduled pass to review accessible image content and leave a clear completion signal on relevant messages.
Trigger
Recurring schedule
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Action
Add reaction to message
Adds a specified emoji reaction to an existing message in a slack channel, identified by its timestamp; does not remove or retrieve reactions.
Why this helps
Image-heavy conversations can leave teams unsure which items have been analyzed and which still need attention.
- Review a Slack conversation on a predictable schedule.
- Use Astica to analyze images when the automation can access their content.
- Mark completed reviews directly on the relevant message.
Setup
Build it in a few focused steps.
- 1Connect Astica ai and Slack once in the Notis portal.
- 2Create an automation in Automations, New Automation, or tell Notis in plain language from any channel.
- 3In one instruction, ask Notis to fetch the specified Slack history, identify messages with accessible images, analyze them with Astica, and react only to messages whose review is complete.
- 4Choose a recurring schedule as the trigger and select where run reports should go.
- 5Test with one real conversation containing an accessible image and verify the reaction is attached to the reviewed message.
Questions about this workflow
Will this find every image ever shared in Slack?
It reviews the conversation history you specify and can only analyze images accessible to the run. Choose an appropriate time range in your instruction if the available history supports it.
What does the reaction mean?
It means the defined review completed. Set the instruction to react only when Astica returned a usable result and the review criteria were met.
Can it trigger on new images instead?
No image or message event trigger is listed here. This workflow runs on the schedule you choose.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Astica ai to Slack. A trigger fires from one place; an action lands in another.
Astica ai triggers
Slack actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Set snooze duration
Deprecated: turns on do not disturb mode for the current user, or changes its duration. use `set dnd duration` instead.
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Add a custom emoji to a Slack team
Deprecated: adds a custom emoji to a slack workspace given a unique name and an image url. use `add emoji` instead.
Add an emoji alias
Adds an alias for an existing custom emoji in a slack enterprise grid organization.
Add a remote file
Adds a reference to an external file (e.g., google drive, dropbox) to slack for discovery and sharing, requiring a unique `external id` and an `external url` accessible by slack.
Add a star to an item
Stars a channel, file, file comment, or a specific message in slack.
Add call participants
Registers new participants added to a slack call.
Add emoji
Adds a custom emoji to a slack workspace given a unique name and an image url; subject to workspace emoji limits.
Add reaction to message
Adds a specified emoji reaction to an existing message in a slack channel, identified by its timestamp; does not remove or retrieve reactions.
Connect any two apps with Notis in the middle.
Astica ai and Slack, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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