vercel

deploy-release-test

Validate a commit-specific Next.js preview package and manually trigger the entire Next.js deployment test suite through the test_e2e_deploy_release.yml GitHub Actions workflow. Use only when asked to run the full deploy test suite or this workflow specifically from an internal vercel/next.js PR branch. Do not use for focused deployment-test sanity checks; run the relevant tests locally with pnpm test-deploy instead. Covers resolving the latest branch SHA, waiting for vercel-packages, preserving default workflow inputs, dispatching the workflow, and verifying the run.

vercel 141,975 31,807 Updated 1w ago

Resources

1
GitHub

Install

npx skillscat add vercel/next-js/deploy-release-test

Install via the SkillsCat registry.

SKILL.md

Deploy Release Test

Use this skill only when manually running the entire Next.js deployment test
suite for a pull request. Treat package validation as a hard gate: never
dispatch the workflow until the exact commit's redirected tarball responds
successfully.

Scope

Do not use this workflow to sanity-check one deployment test or a focused group
of tests. Follow
Running Deploy Tests Locally
instead:

NEXT_TEST_VERSION=https://vercel-packages.vercel.app/next/commits/<commit-sha>/next pnpm test-deploy <path-to-test>

If a request to "run deploy tests" does not explicitly call for the entire
suite, prefer the focused local workflow and scope it to the affected tests.

Inputs

  • Accept a PR number or determine the PR from the current branch.
  • Use repository vercel/next.js and workflow
    .github/workflows/test_e2e_deploy_release.yml.
  • Require the PR head branch to exist in vercel/next.js. A fork branch cannot
    run this secret-bearing workflow; use the repository's PR adoption process
    first when appropriate.

Workflow

  1. Resolve the PR branch and its latest commit from GitHub, not merely from the
    local checkout:

    gh pr view <pr-number> --repo vercel/next.js \
      --json number,url,headRefName,headRefOid,isCrossRepository

    If no PR number was supplied, omit <pr-number> to detect the PR from the
    current branch. Stop if isCrossRepository is true. Record headRefName
    as the branch and headRefOid as the commit SHA.

  2. Construct the exact package URL:

    https://vercel-packages.vercel.app/next/commits/<commit-sha>/next
  3. Wait for the package to become downloadable before dispatching anything:

    node scripts/wait-for-preview-tarball.mjs --commit-sha <commit-sha>

    Keep the wait in an ongoing terminal session and poll it so the user still
    receives progress updates. The helper uses HEAD, follows the redirect to
    Vercel Blob, and only succeeds when the final artifact is available. Do not
    substitute a check that accepts the initial redirect: that endpoint can
    redirect even while the blob still returns 404.

    If the helper times out or reports an authorization or build failure, do not
    dispatch the workflow. Report the failure and inspect the commit's
    build-and-deploy / upload-preview-tarballs checks if useful.

  4. Resolve the PR again immediately after validation. Compare the current
    headRefName and headRefOid with the recorded values. If either changed,
    return to step 2 and validate the new commit-specific URL. Never reuse the
    old package URL for a moved branch.

  5. Trigger the workflow from the PR branch and pass only nextVersion:

    gh workflow run test_e2e_deploy_release.yml \
      --repo vercel/next.js \
      --ref <pr-branch> \
      -f nextVersion=https://vercel-packages.vercel.app/next/commits/<commit-sha>/next

    Do not pass any other -f values. Leaving them unspecified preserves the
    workflow defaults, including vercelCliVersion: vercel@latest and empty
    optional overrides.

  6. Find and verify the newly created run:

    gh run list --repo vercel/next.js \
      --workflow test_e2e_deploy_release.yml \
      --branch <pr-branch> \
      --event workflow_dispatch \
      --limit 5 \
      --json databaseId,url,status,conclusion,headBranch,headSha,displayTitle,createdAt

    Confirm that the newest matching run has:

    • headBranch equal to the PR branch
    • headSha equal to the validated commit SHA
    • displayTitle containing the exact commit-specific package URL

    A race can still move the branch between the final check and dispatch. If the
    run's headSha differs, report the mismatch and do not trigger another run
    until the new SHA's package has been validated.

Completion Report

Report the PR branch, validated SHA and package URL, workflow run URL, and its
current status. Do not wait for the full deployment suite unless the user asks
you to monitor it.

Related Skills

  • $pr-status-triage - Inspect failures if the deployment workflow does not pass.
  • $create-pr - Create or update the internal PR branch before deployment testing.