Define custom input types

The standalone cwl-workflows/custom-types.cwl defines a URI record, a BBox record, and CRS and spectral-band enums inside SchemaDefRequirement. No external type file is needed. The URI record carries a STAC item URL in value; BBox carries west, south, east, north coordinates in bbox and CRS84 in crs.

The example crops green and near-infrared bands from three real Sentinel-2 acquisitions around Lake Almanor, California, computes NDWI and an Otsu water mask, and returns a STAC catalog containing the masks. The job is cwl-workflows/custom-types.yaml; the same inputs are registered in project.toml for CI and Kubernetes acceptance.

python scripts/run-workflows.py --case custom-types-test

To run with a local Podman runtime:

python scripts/run-workflows.py --runner cwltool --case custom-types-test --output /tmp/how-to-acceptance

Band values must be green or nir, and the bounding-box CRS must be CRS84. CWL validates the records and enums before processing. Raster processing uses immutable container image digests.