Give a Slack visual idea something to react to
Turn a written concept into an image draft that helps people discuss the direction more concretely.
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
Generate Image (Gemini 2.5 Flash)
Generates images from text prompts using gemini 2.5 flash image preview model. supports creative image generation with customizable parameters like aspect ratio, safety settings, and optional file saving.
Why this helps
Visual ideas can be hard to evaluate when the only shared reference is a block of text.
- Make a written concept easier to picture.
- Create a starting point for team feedback.
- Explore a direction before investing in finished creative.
Setup
Build it in a few focused steps.
- 1Connect Slack and Gemini to Notis once through the portal.
- 2Create an automation in the portal or ask Notis to generate an image concept from Slack messages describing a visual idea.
- 3Use one plain-language instruction to describe the image style and intended use.
- 4Select the Channel Message Received trigger and choose a channel for run reports.
- 5Test with a real visual brief and review the generated concept for fit.
Questions about this workflow
Is the generated image ready for publication?
Treat it as a concept for review; check accuracy, brand fit, and usage requirements before publishing.
Can a text-only message provide enough direction?
Yes, though a clear description of subject, style, and intended use usually gives Gemini more to work with.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Slack to Gemini. A trigger fires from one place; an action lands in another.
Slack triggers
Gemini actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Count Tokens (Gemini)
Counts the number of tokens in text using gemini tokenization. useful for estimating costs, checking input limits, and optimizing prompts before making api calls.
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Download Video (Veo)
Downloads a generated veo video to local storage. takes the video uri from a completed operation and saves it to the specified file path.
New Channel Created Trigger
Triggered when a new channel is created in Slack.
Embed Content (Gemini)
Generates text embeddings using gemini embedding models. converts text into numerical vectors for semantic search, similarity comparison, clustering, and classification tasks.
Channel Message Received
Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.
Generate Content (Gemini)
Generates text content from prompts using gemini models. supports various models like gemini flash and pro with configurable temperature, token limits, and safety settings for diverse text generation tasks.
Direct Message Received
Triggered when a new direct message (DM) is sent to a user in Slack. Catches all DMs across all DM channels.
Generate Image (Gemini 2.5 Flash)
Generates images from text prompts using gemini 2.5 flash image preview model. supports creative image generation with customizable parameters like aspect ratio, safety settings, and optional file saving.
Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
Generate Videos (Veo)
Generates videos from text prompts using google's veo models. creates high-quality video content with customizable aspect ratios, duration, and style controls. returns operation id for tracking progress.
Message Reaction Removed
Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.
Get Videos Operation (Veo)
Checks the status of a veo video generation operation. use the operation name from generatevideos to track progress and get the download url when complete.
Reaction Added Trigger
DEPRECATED: use `SLACK_MESSAGE_REACTION_ADDED` instead. Triggered when a reaction is added to a message in Slack.
List Models (Gemini API)
Lists available gemini and veo models with their capabilities and limits. useful for discovering supported models and their features before making generation requests.
Connect any two apps with Notis in the middle.
Slack and Gemini, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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