Secretlint out of the box via GitHub Actions

secretlint.yml

# https://github.com/secretlint/secretlint
name: secretlint

on:
  push:
    branches: ['main']
  pull_request:
    branches: ['**']

jobs:
  secretlint:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - uses: actions/setup-node@v2
        with:
          node-version: '14'
      - name: Set up ignored files
        run: |
          cat <<'EOF' > .secretlintignore
          spec/
          test/
          EOF
      - name: Run secretlint
        run: npx @secretlint/quick-start '**/*'
        # Looser option
        # ontinue-on-error: ${{ github.event_name == 'pull_request' }}

Create a file: .github/workflows/secretlint.yml

See also: https://github.com/secretlint/secretlint

Annotation example: