Add repository context to decisions marked in Slack
Use a chosen reaction as a lightweight signal to get technical context on a decision the team wants to revisit or understand.
Trigger
Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
Action
Ask question
Ask any question about a GitHub repository and get an AI-powered, context-grounded response. Args: repoName: GitHub repository or list of repositories (max 10) in owner/repo format question: The question to ask about the repository
Why this helps
Important decisions can be hard to evaluate later when nobody has time to reconstruct the technical background.
- Turn an existing Slack signal into a focused research step.
- Make repository context easier to retrieve for later discussion.
- Reduce the need to interrupt the original decision makers.
Setup
Build it in a few focused steps.
- 1Connect Slack and Devin MCP to Notis once through the portal.
- 2Create the automation in the portal or ask Notis to make it conversationally.
- 3Write one plain-language instruction asking Devin to explain repository context for the reacted-to decision message.
- 4Pick the Slack message reaction added trigger and choose the run-report channel.
- 5Test by adding the selected reaction to one real decision message.
Questions about this workflow
Can the reaction be filtered?
The reaction trigger supports optional filtering by channel and emoji name.
Does the action create a formal decision record?
No. It asks Devin a repository question and returns context.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Slack to Devin MCP. A trigger fires from one place; an action lands in another.
Slack triggers
Devin MCP actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Ask question
Ask any question about a GitHub repository and get an AI-powered, context-grounded response. Args: repoName: GitHub repository or list of repositories (max 10) in owner/repo format question: The question to ask about the repository
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
List available repos
List all repositories available to query with your Devin account. Only available in private mode (via devin.ai endpoints).
New Channel Created Trigger
Triggered when a new channel is created in Slack.
Read wiki contents
View documentation about a GitHub repository. Args: repoName: GitHub repository in owner/repo format (e.g. "facebook/react")
Channel Message Received
Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.
Read wiki structure
Get a list of documentation topics for a GitHub repository. Args: repoName: GitHub repository in owner/repo format (e.g. "facebook/react")
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 Devin MCP, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
Save your first hour today.
7-day trial of any paid plan, with 20$ of usage included.
No card. Works with personal or business Devin MCP.