Slack to GitHub Rule Checks
Approve in Slack. Check in GitHub.
Mo turns approved rules and decisions from Slack into GitHub pull request checks. No new process, no separate review workflow, and no need to move the team into another tool.
Slack stays the input. GitHub stays the checkpoint.
Alex
Only admins can export users.
Mo
Approved
"Only admins can export users."
→
Mo
Rule captured
Stored and ready for PR checks
→
Pull request #24803
mo-bot bot
Mo — Conflicts found
Approved: Only admins can export users
PR includes: export access for all users
CONFLICT WITH APPROVED RULE
Most teams already approve things in chat.
Slack is where teams clarify product behavior, settle edge cases, approve exceptions, and lock in rules that matter. The problem is not approval. The problem is that those approvals usually stop at the conversation.
Mo carries them into GitHub.
Why teams use Slack first
Why Slack works
- Fast
- Already used every day
- Easy to involve product and engineering
- Easy to approve a rule in context
- No extra system to maintain
What usually goes wrong
- Decision stays in the thread
- Pull request is opened later
- Reviewer does not know the rule exists
- Code ships something different
- Nobody notices until later
What this looks like in practice
Pricing
"Trial must stay at 7 days."
Flags the pull request when trial logic changes to 14 days.
Permissions
"Guest users cannot see billing."
Flags the pull request when guest visibility is expanded.
Onboarding
"Users must confirm email before starting a trial."
Flags the pull request when trial access is enabled earlier.
No new workflow for the team
Product or engineering approves a rule in Slack. Developers keep using GitHub normally. Mo runs as part of the pull request process and flags drift before merge.
No extra planning tool.
No separate review queue.
No requirement to rewrite how the team works.
How it works
Slack
Input
@mo approve this
Approve a rule or decision in any Slack channel.
Mo
Bridge
Rule captured
Stores the approved rule and prepares it for code checks.
GitHub
Checkpoint
PR check
Checks pull requests against approved rules before merge.
Optional
Documents
Upload path
Teams can add rules from a document. Mo provides an upload path and lets the team approve what should be enforced.
What kinds of rules teams approve in Slack
- Pricing rules
- Trial rules
- Permission rules
- Billing visibility
- Onboarding requirements
- Export restrictions
- Role access
- Regional restrictions
- Approval gates
- Product decisions that should not drift
Why Slack to GitHub is the simplest starting point
Most teams do not want to adopt another management layer just to protect a few important rules. Slack already holds the conversations. GitHub already holds the merge point.
Mo connects the two.
That is why teams can start small and still get value quickly.
Who this is for
- Teams shipping quickly
Where review speed makes it easy to miss rule drift.
- Teams using AI coding tools
Where more code is being generated and approvals are easier to lose.
- Product-led teams
Where important behavior decisions are often made in Slack.
- Teams that do not want another process
Where adoption only works if the workflow stays lightweight.
FAQ
Do we have to use the Mo portal?
No. Slack is the primary way teams approve rules and decisions. The portal is secondary and mainly useful for uploads or additional setup.
Can non-developers approve rules in Slack?
Yes. Product, ops, founders, and engineering leads can approve rules where the conversation already happens.
Does this work only for GitHub?
No. Mo also works with GitLab merge requests.
Do we need to approve every message?
No. Only what is explicitly approved becomes enforceable.
Used internally at Advante across 12+ projects including:
Keep Slack as the place where rules are approved.
Let GitHub be the place where those rules are checked.
Mo turns approved Slack rules into GitHub pull request checks. No new process. No new tool.