DEVOPS
Tear Down Preview Deploys When a PR Merges or Closes
Listens for GitHub pull request merged or closed events and immediately deletes the associated Vercel preview deployments, posting a teardown confirmation to the PR.
How it runs
The automated pipeline, trigger to output.
- TriggerGitHub PR closed/merged webhookGitHub
- LogicConfirm close + extract head branch
- ActionFind Vercel previews for that branchVercel
- LogicBranch: any matching previews?
- ActionDelete matching preview deploymentsVercel
- OutputComment teardown summary on the PRGitHub
What it does
Reaps a pull request's preview environments the moment the PR is merged or closed, instead of waiting for a TTL to lapse. The PR thread gets a comment confirming which previews were removed.
When to use it
When previews are tied one-to-one with PRs and there is no reason to keep them once the PR is done. This is the tightest, cleanest policy: zero stale previews because they never outlive their PR.
How it works
- 1A GitHub webhook fires on pull_request `closed` (covers both merge and plain close).
- 2A filter confirms the action is a real close and extracts the branch name.
- 3Query the Vercel API for all preview deployments whose Git branch matches the PR head.
- 4A branch checks whether any matching previews exist; if none, the run ends quietly.
- 5Delete each matching preview deployment through the Vercel API.
- 6Post a comment back on the GitHub PR listing the torn-down preview URLs and confirming cleanup is complete.
Set it up
What you configure once, before turning it on.
- 1Connect GitHubRepos, issues, pull requests, actions.
- 2Connect VercelDeploys, runtime logs, analytics.
- 3Set each agent's modelWe leave models unset so you pick the tier — fast + cheap, or top-quality.
- 4Tune it to your dataEdit the prompts, filters, and field mappings so it matches how your team works.
- 5Test, then turn it onRun once against a sample, confirm the output, then enable the trigger.
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