Recheck repository questions after a reaction is removed
When a marker disappears, Devin checks whether the underlying technical question still needs an answer.
Trigger
Message Reaction Removed
Triggered when a reaction is removed from 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
Removing a reaction can signal changing priority, but unresolved technical context may still be unclear.
- Surface unresolved questions
- Reduce ambiguous handoffs
- Keep technical decisions traceable
Setup
Build it in a few focused steps.
- 1Connect Slackbot and Devin MCP once in Notis.
- 2Create an automation for removed reaction follow-up audits.
- 3Describe the outcome: ask Devin to reassess the original message and list any unresolved repository questions.
- 4Pick Message Reaction Removed as the trigger and choose a report channel.
- 5Test by removing a reaction from one real message.
Questions about this workflow
What does Devin receive after the reaction is removed?
Notis passes the triggering Slack event context and your instruction; include enough repository detail in the original message.
Can this be limited to a channel?
Yes. The Slack trigger supports optional channel filtering.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Slackbot to Devin MCP. A trigger fires from one place; an action lands in another.
Slackbot 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.
Slackbot and Devin MCP, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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