PR Merged Notifier — Webhook Template for Automation
Webhook
PR merges to main — AI checks if critical files changed and notifies your engineering team on Slack.
Template PR Merged Notifier bundles a ready-to-deploy workspace for automation workflows. Install in one click from the Aerostack dashboard or via aerostack init --template=pr-merged-notifier.
What It Does
Stay on top of what ships to production. When a pull request merges to main, this webhook uses AI to analyze the changed files, flag modifications to critical paths (routes, auth, migrations, infrastructure), and post a summary to your engineering Slack channel.
Your team knows what just shipped — before it hits production.
How It Works
- GitHub fires a
pull_request.closedevent when a PR is merged to main - AI analyzes the file list — identifies which files are in critical paths (src/routes/, src/lib/, migrations/, config)
- Impact assessment — generates a human-readable summary: what changed, who authored it, and why it matters
- Slack notification — posts to #engineering with the PR title, author, critical file list, and direct link
Example Scenario
A developer merges a PR that modifies src/lib/auth.ts and adds a new migration file. Within seconds, #engineering gets: "Auth module updated + new migration by @sarah — PR #247: Add MFA support. Critical files: auth.ts, 0052_mfa_tokens.sql. Review deployment carefully."
Triggers
pull_request.closed(wheremerged = true) — PR merged to default branch
Metadata
What's Included
Required MCPs
MCP servers this template connects to.
Deploy this webhook in minutes
PR merges to main — AI checks if critical files changed and notifies your engineering team on Slack.
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Frequently asked questions
What does the PR Merged Notifier template include?+
The PR Merged Notifier template is a pre-configured Aerostack workspace for automation. It bundles @aerostack/mcp-slack and any required workflows and edge functions. Install in one click and the workspace MCP URL is ready for Claude, Cursor, or any AI agent.
How do I install the PR Merged Notifier template?+
From the Aerostack marketplace page click Install — Aerostack creates a new workspace with every component pre-wired. You can also install via CLI: aerostack install template aerostack/pr-merged-notifier
Can I customize PR Merged Notifier after installing?+
Yes. Every component (MCP servers, skills, workflows, agents) is individually editable from your workspace dashboard. Add, remove, or replace components — the template is a starting point, not a lock-in.
Is the PR Merged Notifier template free to use?+
Templates are free to install. Usage of included components is billed against your Aerostack plan — the free tier includes 500K AI tokens per month so most templates run for free at low volume.