PR workflow (vercel/ncc)

The PR workflow from vercel/ncc, explained and optimized by Latchkey.

CI health: C - fair

Point runs-on at Latchkey and get run de-duplication, job timeouts, self-healing for flaky steps, and up to 58% lower cost, applied automatically.

Grade your own workflow free or run it on Latchkey →

Source: vercel/ncc.github/workflows/pr.ymlLicense MITView source

What it does

This is the PR workflow from the vercel/ncc repository, a real project running GitHub Actions. It is shown here with attribution under its MIT license.

Below, Latchkey shows a faster, safer version produced by its optimization engine.

The workflow

workflow (.yml)

name: PR
on:
  pull_request:
    types: [opened, edited, synchronize]

permissions:
  pull-requests: read

jobs:
  lint:
    runs-on: ubuntu-latest
    steps:
      - uses: amannn/action-semantic-pull-request@48f256284bd46cdaab1048c3721360e808335d50
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

The same workflow, on Latchkey

Removes redundant runs and caps runaway jobs. Added and changed lines are highlighted.

name: PR
on:
  pull_request:
    types: [opened, edited, synchronize]
 
permissions:
  pull-requests: read
 
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  lint:
    timeout-minutes: 30
    runs-on: latchkey-small
    steps:
      - uses: amannn/action-semantic-pull-request@48f256284bd46cdaab1048c3721360e808335d50
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

What changed

Run on Latchkey managed runners with one line (runs-on), which apply the fixes below automatically and self-heal transient failures. This example uses latchkey-small; pick the runner size that fits the job.
Cancel superseded runs when a branch or PR gets a newer push.
Add a job timeout so a hung step cannot burn hours of runner time.

This workflow runs 1 job per trigger. On Latchkey the same minutes cost up to 58% less than GitHub-hosted, with zero queue time.

Actions used in this workflow

amannn/action-semantic-pull-request