Unified raster capability matrix

The @honua/sdk-js/raster facade records client, server, and end-to-end status separately. supported is not inferred from a filename, endpoint family, or injected adapter.

Source Client Server End to end Executable operations
Direct COG Experimental Unavailable Experimental Structural inspect, bounded pixel window, bands, no-data statistics, histogram, value inspect, MapLibre mount
ImageServer Supported Supported Supported Metadata, bounded bbox render, bands, rendering rule, identify, MapLibre/deck.gl image handoff
OGC API Coverages Experimental Experimental Experimental Collection/domain/range metadata, bounded bbox retrieval, named range fields, MapLibre/deck.gl image handoff
WCS Experimental Experimental Experimental DescribeCoverage, bounded bbox retrieval, named range fields, advertised-axis scaling, MapLibre/deck.gl image handoff
Zarr Unavailable Varies Unavailable No executable adapter in this issue
NetCDF Unavailable Varies Unavailable No executable adapter in this issue

UNIFIED_RASTER_CAPABILITY_MATRIX and RASTER_FORMAT_MATURITY use the canonical CloudNativeMaturity vocabulary. Coverage/WCS operations reuse the bounded clients from @honua/sdk-js/coverages; unsupported facade fields fail closed.