psf/black GitHub Actions scorecard

# No concurrency control (applies to: build and publish)
concurrency:
  group: ${{ github.workflow }}
  # no cancel-in-progress on deploys: queued deploys would be dropped

# Workflow runs on both push and pull_request (applies to: test, lint and format, docs)
on:
  push:
    branches: [main]
  pull_request:

# No concurrency control (applies to: lint and format, docs, changelog, diff-shades comment)
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

# No job timeout (applies to: lint and format, test, fuzz, changelog, build and publish, docker, diff-shades, diff-shades comment, test release tool, zizmor, docs)
jobs:
  build:
    runs-on: ubuntu-latest
    timeout-minutes: 15

# No path filters on triggers (applies to: lint and format, changelog, build and publish)
on:
  pull_request:
    paths:
      - 'src/**'
      - 'package.json'

# Large build matrix (applies to: test, test release tool)
strategy:
  fail-fast: true
  matrix:
    include:
      - { os: ubuntu-latest, node: 20 }
      - { os: ubuntu-latest, node: 22 }

# Premium runners (macOS / Windows) (applies to: test, build and publish, test release tool, docs)
jobs:
  build:
    runs-on: ubuntu-latest  # ~10x cheaper than macos-latest

# Artifacts at default retention (applies to: fuzz, build and publish, docker, diff-shades)
- uses: actions/upload-artifact@v4
  with:
    name: build
    path: dist/
    retention-days: 7

# Scheduled at the top of the hour (applies to: fuzz)
on:
  schedule:
    - cron: '44 0 * * *'  # was '0 0 * * *' — any non-:00 minute avoids the herd

# Full-history clone (fetch-depth: 0) (applies to: diff-shades)
- uses: actions/checkout@v4
  # fetch-depth: 0 removed — default shallow clone is enough here

Each snippet is representative. Merge into the named workflow files rather than pasting wholesale.