Pull request size labeler triages PRs based on the size of the changes in the PR. Based on: https://github.com/actions/labeler

Create a .github/pr-size-labeler.yml file with a list of labels and the size of changes this label has as upper limit.

The key is the name of the label in your repository that you want to add (eg: "Small Change", "Big Change") and the value is the upper limit of changes for that label (10, 20, Infinity). The labels must be in ascending order basend on the limit value.

'Small Change': 2
'Medium Change': 5
'Big Change': 10
'Huge Change': Infinity

Create a workflow (eg: .github/workflows/pr-size-labeler.yml see Creating a Workflow file) to utilize the labeler action with content:

name: "Pull Request Size Labeler"
on: [pull_request]

jobs:
  triage:
    runs-on: ubuntu-latest
    steps:
    - uses: julrocas/pr-size-labeler@main
      with:
        repo-token: "${{ secrets.GITHUB_TOKEN }}"

Note: This grants access to the GITHUB_TOKEN so the action can make calls to GitHub's rest API

Two inputs are defined in action.yml to let you configure the labeler: