Pre-Deployment Output Validation for Stack AI Workflows
Before deploying a workflow that depends on Stack AI action outputs, you need to know what fields will be available and their types. This automation listens for deployment webhooks and fetches action output schemas, validating that your workflow expects the right data.
Trigger
Webhook received
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Action
Get Action Output Schema
Tool to retrieve the output parameters schema for a Stack.ai provider action as JSON schema. Use when you need to understand what data fields an action returns or to validate action outputs.
Why this helps
Workflows fail in production because the data output from Stack AI actions doesn't match what the downstream system expects, causing silent failures and debugging confusion.
- Catch data mismatches before deployment, preventing silent failures
- Reduce post-deployment debugging by validating schema assumptions upfront
- Increase workflow reliability by ensuring outputs match expectations
Setup
Build it in a few focused steps.
- 1Connect Stack AI and Slack to Notis.
- 2Create an automation with the prompt: 'When a deployment webhook is received for a Stack AI workflow, fetch the output schema for each action in the workflow and post a validation report to our deployment channel, highlighting any potential data type mismatches.'
- 3Set the trigger to 'Webhook' and copy the generated webhook URL.
- 4Configure your deployment pipeline to call that webhook when a Stack AI workflow is ready to deploy.
- 5Choose your deployment or #releases channel for validation reports.
- 6Test by triggering a deployment request and verify the validation report appears.
Questions about this workflow
Can Notis catch all data type mismatches?
Notis compares action output schemas against common downstream data expectations (SQL fields, API parameters, etc.). Complex custom transformations may need additional review, but basic type mismatches are caught.
What if validation finds an issue?
Notis posts a detailed report highlighting the mismatch. You can decide to fix the workflow or accept the risk and proceed.
How do I integrate this with my deployment tool?
Most CI/CD and deployment tools support HTTP webhooks. Use the URL that Notis provides in your deployment step's post-deployment or pre-release hook.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Slack to Stack Ai. A trigger fires from one place; an action lands in another.
Slack triggers
Stack Ai actions
New Channel Created Trigger
Triggered when a new channel is created in Slack.
Check Health
Tool to check the health status of the Stack AI API. Use to verify API availability and service status.
Channel Message Received
Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.
Get Action Inputs
Tool to retrieve the input schema for a specific provider action in Stack AI. Use when you need to understand what parameters are required for a provider action.
Direct Message Received
Triggered when a new direct message (DM) is sent to a user in Slack. Catches all DMs across all DM channels.
Get Action Output Schema
Tool to retrieve the output parameters schema for a Stack.ai provider action as JSON schema. Use when you need to understand what data fields an action returns or to validate action outputs.
Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
Get Connector Type Schema
Tool to retrieve the configuration schema for a specific connector type in Stack AI. Use when you need to understand what parameters are required to configure a connector.
Message Reaction Removed
Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.
Get License Status
Tool to retrieve the current Stack AI license status. Use when you need to check license validity, expiration date, or days remaining.
Reaction Added Trigger
DEPRECATED: use `SLACK_MESSAGE_REACTION_ADDED` instead. Triggered when a reaction is added to a message in Slack.
Get Provider Details
Tool to retrieve details of a specific Stack AI tool provider. Use when you need information about available actions, triggers, and configuration for a provider.
Reaction Removed Trigger
DEPRECATED: use `SLACK_MESSAGE_REACTION_REMOVED` instead. Triggered when a reaction is removed from a message.
Get Provider Action Details
Tool to get details of a specific action for a provider. Use when you need information about a provider's action including its parameters, description, and API details.
New Bot Message Received Trigger
DEPRECATED: use `SLACK_CHANNEL_MESSAGE_RECEIVED` with `is_bot_message=true` instead. Triggered when a new bot message is posted to a Slack channel.
Get Provider Icon
Tool to fetch a provider icon image by provider identifier. Use when you need to retrieve the icon for a tool provider.
Connect any two apps with Notis in the middle.
Not just Slack and Stack Ai. Any combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
Save your first hour today.
7 days free trial with 20$ free usage included.
No card. Works with personal or business Stack Ai.