This action checks if the current branch would produce merge conflicts when merged to a given integration branch.

Required The name of the integration branch. Default "main".

This is a Github action, so it has to be added to a github workflow.
A simple example of running this action on all pushes to the repository would be add a main.yml file under .github/workflows with the following content

on: [push]

jobs:
  merge_conflict_job:
    runs-on: ubuntu-latest
    name: Find merge conflicts
    steps:
      # Checkout the source code so we have some files to look at.
      - uses: actions/checkout@v2
        with:
          fetch-depth: 0 #Required : Since we need to read the history
      # Run the actual merge conflict detection
      - name: Merge Conflict detection
        uses: siscodeorg/[email protected]

For this example, each push would trigger the merge conflict detection.