Tests workflow (kayba-ai/agentic-context-engine)

The Tests workflow from kayba-ai/agentic-context-engine, explained and optimized by Latchkey.

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Source: kayba-ai/agentic-context-engine.github/workflows/test.ymlLicense Apache-2.0View source

What it does

This is the Tests workflow from the kayba-ai/agentic-context-engine repository, a real project running GitHub Actions. It is shown here with attribution under its Apache-2.0 license.

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

The workflow

workflow (.yml)

name: Tests

on:
  push:
    branches: [ main, develop, lanzelot-dev ]
  pull_request:
    branches: [ main ]
  workflow_dispatch:  # Allow manual triggering

jobs:
  test:
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os: [ubuntu-latest, windows-latest, macos-latest]
        python-version: ['3.12']  # Matches pyproject.toml requires-python == 3.12.*

    steps:
    - uses: actions/checkout@v4

    - name: Set up Python ${{ matrix.python-version }}
      uses: actions/setup-python@v4
      with:
        python-version: ${{ matrix.python-version }}

    - name: Install uv
      uses: astral-sh/setup-uv@v7

    - name: Install dependencies
      run: uv sync --extra mcp --extra tracing

    - name: Run tests with coverage
      run: |
        uv run pytest -m "not requires_api"

    - name: Upload coverage reports (Linux only)
      if: matrix.os == 'ubuntu-latest' && matrix.python-version == '3.12'
      uses: actions/upload-artifact@v4
      with:
        name: coverage-report
        path: htmlcov/
        retention-days: 30

    - name: Type checking (Linux only)
      if: matrix.os == 'ubuntu-latest'
      run: |
        uv run mypy ace/ --ignore-missing-imports

The same workflow, on Latchkey

Estimated ~20% faster on cache hits, plus fewer wasted runs and a safer supply chain. Added and changed lines are highlighted.

name: Tests
 
on:
  push:
    branches: [ main, develop, lanzelot-dev ]
  pull_request:
    branches: [ main ]
  workflow_dispatch:  # Allow manual triggering
 
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  test:
    timeout-minutes: 30
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os: [ubuntu-latest, windows-latest, macos-latest]
        python-version: ['3.12']  # Matches pyproject.toml requires-python == 3.12.*
 
    steps:
    - uses: actions/checkout@v4
 
    - name: Set up Python ${{ matrix.python-version }}
      uses: actions/setup-python@v4
      with:
        cache: 'pip'
        python-version: ${{ matrix.python-version }}
 
    - name: Install uv
      uses: astral-sh/setup-uv@v7
 
    - name: Install dependencies
      run: uv sync --extra mcp --extra tracing
 
    - name: Run tests with coverage
      run: |
        uv run pytest -m "not requires_api"
 
    - name: Upload coverage reports (Linux only)
      if: matrix.os == 'ubuntu-latest' && matrix.python-version == '3.12'
      uses: actions/upload-artifact@v4
      with:
        name: coverage-report
        path: htmlcov/
        retention-days: 30
 
    - name: Type checking (Linux only)
      if: matrix.os == 'ubuntu-latest'
      run: |
        uv run mypy ace/ --ignore-missing-imports

What changed

Cancel superseded runs when a branch or PR gets a newer push.
Cache dependency installs on the setup step so they are served from cache.
Add a job timeout so a hung step cannot burn hours of runner time.

1 third-party action is referenced by a movable tag. Pin it to the commit SHA (Latchkey resolves and applies this automatically) so a repointed tag cannot change what runs.

This workflow runs 1 job (3 with the matrix expanded) per trigger. On Latchkey the same minutes cost up to 58% less than GitHub-hosted, with zero queue time.

Actions used in this workflow

actions/checkout actions/setup-python astral-sh/setup-uv actions/upload-artifact