Fail more gracefully if we're missing mandatory parameters

added To Do label

assigned to @dinyar

added Doing label and removed To Do label

mentioned in commit e74b42a8

mentioned in merge request !25 (merged)

mentioned in commit 2927b031

mentioned in commit abeebe22

mentioned in commit 7f2f609e

added In Review label and removed Doing label

mentioned in commit 45e97bcd

mentioned in commit 7b8a293e

mentioned in commit 4b27b423

mentioned in commit ab7b0eb7

mentioned in commit 7cfcf905

mentioned in commit ae565793

mentioned in commit a2c92b16

mentioned in commit 812bd061

mentioned in commit e810042e

mentioned in commit 74090015

mentioned in commit f5f71aaf