Cryptic failures when a required parameter is not specified for an action

[bbartley]

An execution can fail in mysterious ways (execution steps omitted) when a required parameter for a Primitive is not provided in a primitive_step method call. I thought there was a check somewhere to ensure that all required Parameters were specified, but at least in some cases, missing Parameters are not caught. I don't have a minimal reproducible case to post at this time, but given that this manifested as a very cryptic failure mode, I definitely wanted to post a reminder here.