Check Links workflow (langchain-ai/langsmith-sdk)

The Check Links workflow from langchain-ai/langsmith-sdk, 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: langchain-ai/langsmith-sdk.github/workflows/link-check.ymlLicense MITView source

What it does

This is the Check Links workflow from the langchain-ai/langsmith-sdk 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: Check Links

on:
  pull_request:
    branches:
      - main
  push:
    branches:
      - main
  schedule:
    - cron: '0 5 * * *'
  workflow_dispatch:

permissions:
  contents: read

jobs:
  markdown-link-check:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
      - name: Check links in Markdown files
        uses: gaurav-nelson/github-action-markdown-link-check@5c5dfc0ac2e225883c0e5f03a85311ec2830d368 # v1
        with:
          # Do not check the `vendor/` directory.
          folder-path: .github,js,openapi,python
          file-path: ./README.md
          config-file: .mlc_config.json

The same workflow, on Latchkey

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

name: Check Links
 
on:
  pull_request:
    branches:
      - main
  push:
    branches:
      - main
  schedule:
    - cron: '0 5 * * *'
  workflow_dispatch:
 
permissions:
  contents: read
 
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  markdown-link-check:
    timeout-minutes: 30
    runs-on: latchkey-small
    steps:
      - name: Checkout code
        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
      - name: Check links in Markdown files
        uses: gaurav-nelson/github-action-markdown-link-check@5c5dfc0ac2e225883c0e5f03a85311ec2830d368 # v1
        with:
          # Do not check the `vendor/` directory.
          folder-path: .github,js,openapi,python
          file-path: ./README.md
          config-file: .mlc_config.json

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

actions/checkout