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psf/black GitHub Actions scorecard

Public GitHub Actions data, last 30 days. Updated 6/30/2026, 1:59:04 AM.

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240 min/mo
recoverable (~13% of CI time) · across 34 patterns · ≈$1/mo
Rough estimate from wall-clock run time at standard Linux pricing. Matrix/parallel jobs and your actual runners will differ.
6.0%
failure rate, 30d
44m
avg time to recover from a failure
19 workflows · 500 runs (16.7/day) · 1,899 CI-min (wall-clock) · ≈$11 at paid-Linux rates (30d)

Waste detected

Biggest wins first, each with the exact config fix.

Workflow runs on both push and pull_request · fuzz

~66 min/mo

Pushing to a branch and opening a PR triggers two runs. Pick one (usually `pull_request`) and exclude branch pushes for non-default branches.

on:
  push:
    branches: [main]
  pull_request:

Workflow runs on both push and pull_request · test

~58 min/mo

Pushing to a branch and opening a PR triggers two runs. Pick one (usually `pull_request`) and exclude branch pushes for non-default branches.

on:
  push:
    branches: [main]
  pull_request:

Workflow runs on both push and pull_request · build and publish

~44 min/mo

Pushing to a branch and opening a PR triggers two runs. Pick one (usually `pull_request`) and exclude branch pushes for non-default branches.

on:
  push:
    branches: [main]
  pull_request:

No concurrency control · build and publish

~21 min/mo

Add a `concurrency:` block keyed on branch to cancel superseded runs when devs push twice quickly.

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

Workflow runs on both push and pull_request · lint and format

~17 min/mo

Pushing to a branch and opening a PR triggers two runs. Pick one (usually `pull_request`) and exclude branch pushes for non-default branches.

on:
  push:
    branches: [main]
  pull_request:

Workflow runs on both push and pull_request · docs

~17 min/mo

Pushing to a branch and opening a PR triggers two runs. Pick one (usually `pull_request`) and exclude branch pushes for non-default branches.

on:
  push:
    branches: [main]
  pull_request:

No concurrency control · lint and format

~6 min/mo

Add a `concurrency:` block keyed on branch to cancel superseded runs when devs push twice quickly.

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

No concurrency control · docs

~6 min/mo

Add a `concurrency:` block keyed on branch to cancel superseded runs when devs push twice quickly.

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

Workflow runs on both push and pull_request · test release tool

~3 min/mo

Pushing to a branch and opening a PR triggers two runs. Pick one (usually `pull_request`) and exclude branch pushes for non-default branches.

on:
  push:
    branches: [main]
  pull_request:

No concurrency control · changelog

~1 min/mo

Add a `concurrency:` block keyed on branch to cancel superseded runs when devs push twice quickly.

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

No concurrency control · diff-shades comment

~1 min/mo

Add a `concurrency:` block keyed on branch to cancel superseded runs when devs push twice quickly.

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

No job timeout · lint and format

~0 min/mo

No job sets `timeout-minutes`, so a hung step can run to GitHub's 6-hour default. Add `timeout-minutes` to each job.

jobs:
  build:
    runs-on: ubuntu-latest
    timeout-minutes: 15

No path filters on triggers · lint and format

~0 min/mo

Runs on every push/PR with no `paths:` filter, so docs-only changes still trigger full CI. Add a `paths:` filter if that's common.

on:
  pull_request:
    paths:
      - 'src/**'
      - 'package.json'

No job timeout · test

~0 min/mo

No job sets `timeout-minutes`, so a hung step can run to GitHub's 6-hour default. Add `timeout-minutes` to each job.

jobs:
  build:
    runs-on: ubuntu-latest
    timeout-minutes: 15

Premium runners (macOS / Windows) · test

~0 min/mo

macOS bills ~10× and Windows ~2× a Linux minute. The cost estimate above assumes Linux, so your real spend is higher. Move any job that doesn't need them to `ubuntu-latest`.

jobs:
  build:
    runs-on: ubuntu-latest  # ~10x cheaper than macos-latest

No job timeout · fuzz

~0 min/mo

No job sets `timeout-minutes`, so a hung step can run to GitHub's 6-hour default. Add `timeout-minutes` to each job.

jobs:
  build:
    runs-on: ubuntu-latest
    timeout-minutes: 15

Artifacts at default retention · fuzz

~0 min/mo

`upload-artifact` has no `retention-days`, so artifacts keep up to 90 days (storage cost). Set e.g. `retention-days: 7`.

- uses: actions/upload-artifact@v4
  with:
    name: build
    path: dist/
    retention-days: 7

No job timeout · changelog

~0 min/mo

No job sets `timeout-minutes`, so a hung step can run to GitHub's 6-hour default. Add `timeout-minutes` to each job.

jobs:
  build:
    runs-on: ubuntu-latest
    timeout-minutes: 15

No path filters on triggers · changelog

~0 min/mo

Runs on every push/PR with no `paths:` filter, so docs-only changes still trigger full CI. Add a `paths:` filter if that's common.

on:
  pull_request:
    paths:
      - 'src/**'
      - 'package.json'

No job timeout · build and publish

~0 min/mo

No job sets `timeout-minutes`, so a hung step can run to GitHub's 6-hour default. Add `timeout-minutes` to each job.

jobs:
  build:
    runs-on: ubuntu-latest
    timeout-minutes: 15

Artifacts at default retention · build and publish

~0 min/mo

`upload-artifact` has no `retention-days`, so artifacts keep up to 90 days (storage cost). Set e.g. `retention-days: 7`.

- uses: actions/upload-artifact@v4
  with:
    name: build
    path: dist/
    retention-days: 7

No path filters on triggers · build and publish

~0 min/mo

Runs on every push/PR with no `paths:` filter, so docs-only changes still trigger full CI. Add a `paths:` filter if that's common.

on:
  pull_request:
    paths:
      - 'src/**'
      - 'package.json'

Premium runners (macOS / Windows) · build and publish

~0 min/mo

macOS bills ~10× and Windows ~2× a Linux minute. The cost estimate above assumes Linux, so your real spend is higher. Move any job that doesn't need them to `ubuntu-latest`.

jobs:
  build:
    runs-on: ubuntu-latest  # ~10x cheaper than macos-latest

No job timeout · docker

~0 min/mo

No job sets `timeout-minutes`, so a hung step can run to GitHub's 6-hour default. Add `timeout-minutes` to each job.

jobs:
  build:
    runs-on: ubuntu-latest
    timeout-minutes: 15

Artifacts at default retention · docker

~0 min/mo

`upload-artifact` has no `retention-days`, so artifacts keep up to 90 days (storage cost). Set e.g. `retention-days: 7`.

- uses: actions/upload-artifact@v4
  with:
    name: build
    path: dist/
    retention-days: 7

No job timeout · diff-shades

~0 min/mo

No job sets `timeout-minutes`, so a hung step can run to GitHub's 6-hour default. Add `timeout-minutes` to each job.

jobs:
  build:
    runs-on: ubuntu-latest
    timeout-minutes: 15

Artifacts at default retention · diff-shades

~0 min/mo

`upload-artifact` has no `retention-days`, so artifacts keep up to 90 days (storage cost). Set e.g. `retention-days: 7`.

- uses: actions/upload-artifact@v4
  with:
    name: build
    path: dist/
    retention-days: 7

No job timeout · diff-shades comment

~0 min/mo

No job sets `timeout-minutes`, so a hung step can run to GitHub's 6-hour default. Add `timeout-minutes` to each job.

jobs:
  build:
    runs-on: ubuntu-latest
    timeout-minutes: 15

No job timeout · test release tool

~0 min/mo

No job sets `timeout-minutes`, so a hung step can run to GitHub's 6-hour default. Add `timeout-minutes` to each job.

jobs:
  build:
    runs-on: ubuntu-latest
    timeout-minutes: 15

Large build matrix · test release tool

~0 min/mo

The matrix expands to many parallel jobs per run, multiplying billable minutes, often more combos than you need. Trim the axes, or use `include:` to list only the combinations that matter.

strategy:
  fail-fast: true
  matrix:
    include:
      - { os: ubuntu-latest, node: 20 }
      - { os: ubuntu-latest, node: 22 }

Premium runners (macOS / Windows) · test release tool

~0 min/mo

macOS bills ~10× and Windows ~2× a Linux minute. The cost estimate above assumes Linux, so your real spend is higher. Move any job that doesn't need them to `ubuntu-latest`.

jobs:
  build:
    runs-on: ubuntu-latest  # ~10x cheaper than macos-latest

No job timeout · zizmor

~0 min/mo

No job sets `timeout-minutes`, so a hung step can run to GitHub's 6-hour default. Add `timeout-minutes` to each job.

jobs:
  build:
    runs-on: ubuntu-latest
    timeout-minutes: 15

No job timeout · docs

~0 min/mo

No job sets `timeout-minutes`, so a hung step can run to GitHub's 6-hour default. Add `timeout-minutes` to each job.

jobs:
  build:
    runs-on: ubuntu-latest
    timeout-minutes: 15

Premium runners (macOS / Windows) · docs

~0 min/mo

macOS bills ~10× and Windows ~2× a Linux minute. The cost estimate above assumes Linux, so your real spend is higher. Move any job that doesn't need them to `ubuntu-latest`.

jobs:
  build:
    runs-on: ubuntu-latest  # ~10x cheaper than macos-latest

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