Sequential jobs without dependency
==================================

.. list-table::
   :stub-columns: 1
   :widths: 20 80

   * - Rule ID
     - ``parallel_opportunity``
   * - Category
     - energy
   * - Severity
     - low

Multiple jobs run sequentially but have no dependency on each other. Running them in parallel would reduce total pipeline duration and energy use.

Detection
---------

``heuristic`` — Structural comparison across multiple jobs or steps.

Examples
--------

**Non-compliant:**

.. code-block:: yaml

   jobs:
     lint:
       runs-on: ubuntu-latest
       steps:
         - run: npm run lint
     test:
       needs: lint
       steps:
         - run: npm test
     build:
       needs: test
       steps:
         - run: npm run build

**Compliant:**

.. code-block:: yaml

   jobs:
     lint:
       runs-on: ubuntu-latest
       steps:
         - run: npm run lint
     test:
       runs-on: ubuntu-latest
       steps:
         - run: npm test
     build:
       runs-on: ubuntu-latest
       steps:
         - run: npm run build

**Fix**: Remove unnecessary needs: dependencies between jobs that do not share outputs. GitHub Actions runs independent jobs in parallel by default.