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Selecting an Analysis Gear in a Gear Rule


You can choose to run either Utility or Analysis Gears in Project Gear Rules, but there is a restriction. Gears that use the Flywheel SDK are not available to be selected unless they have the read-only key added to them.

The reason for this restriction is that Gear Rules run via a System API key instead of the typical user's API key when a user starts a gear. Since the System API key doesn't have permission to write data outside of its container, it could fail due to permissions. By designating read-only, the gear is able to be used to read data but not potentially edit or overwrite any data without it being associated with a particular Flywheel user.