Satellite, without the tiles.

• Sentinel-1 SAR. C-band backscatter through cloud and at night, with 6 to 12 day revisit. The satellite pipeline pulls the scene, runs detectors, and writes one memory per place. Your agents recall it whenever optical is occluded.
• Sentinel-2 optical. 13 bands at 10m resolution with a 5-day revisit. The same pipeline produces the spectral indices and the scene caption, so a question about vegetation or built-up change resolves against the memory directly rather than a re-rendered tile.
• MODIS daily thermal. Coarser 250 to 1000m thermal that fills the cadence gap between Sentinel revisits. Useful when an asset needs a once-a-day check on heat or surface temperature regardless of whether the higher-resolution feeds have a clean look.

Same cell, same memory, same agent recall. Satellite contributes alongside drone, CCTV, OSM, and your files. None of those modalities run as a separate stack.