CI 🧪 workflow (paulrobello/parllama)

The CI 🧪 workflow from paulrobello/parllama, explained and optimized by Latchkey.

What it does

This is the CI 🧪 workflow from the paulrobello/parllama repository, a real project running GitHub Actions. It is shown here with attribution under its MIT license.

Below, Latchkey shows a faster, safer version produced by its optimization engine.

The workflow

name: CI 🧪

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

jobs:
  checkall:
    name: Format, Lint, Typecheck, Test
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v6

      - name: Setup Python with uv
        uses: ./.github/actions/setup-python-uv

      - name: Run full check suite (format, lint, typecheck, test)
        run: make checkall

The same workflow, on Latchkey

Removes redundant runs and caps runaway jobs. Added and changed lines are highlighted.

name: CI 🧪
 
on:
  push:
    branches: [ main ]
  pull_request:
    branches: [ main ]
 
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  checkall:
    timeout-minutes: 30
    name: Format, Lint, Typecheck, Test
    runs-on: latchkey-small
    steps:
      - uses: actions/checkout@v6
 
      - name: Setup Python with uv
        uses: ./.github/actions/setup-python-uv
 
      - name: Run full check suite (format, lint, typecheck, test)
        run: make checkall
 

What changed

• Run on Latchkey managed runners with one line (runs-on), which apply the fixes below automatically and self-heal transient failures. This example uses latchkey-small; pick the runner size that fits the job.
• Cancel superseded runs when a branch or PR gets a newer push.
• Add a job timeout so a hung step cannot burn hours of runner time.

This workflow runs 1 job per trigger. On Latchkey the same minutes cost up to 58% less than GitHub-hosted, with zero queue time.

Actions used in this workflow