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Prateek YJ
Prateek YJ

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What we learned building AI workers for software with no API

Most business software was never designed for automation. Old ERPs, desktop tools, carrier portals, and internal apps often have no usable API.

Coasty approaches the problem through computer use. The agent sees the screen, moves the mouse, types, and completes the workflow like a person.

The hard part is not clicking. It is recovery. Real software changes, loads slowly, opens unexpected dialogs, and returns strange errors. A useful agent needs to understand the new state and keep going safely.

We are building Coasty to make that reliable for enterprise work. Built by a team from Stanford and Columbia. YC S26.

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