edify checking utility:

Validates updater-scripts for function names and parameter count
depends on bootable/recovery/libedify which should be built for the host

THE VAPOUR-WARE LIST OF POSSIBLE FUTURE FEATURES.

Process update zips,
Validate Parameter Values
Simulate block devices/platform devices 
Simulate partition mounting and unmounting
Simulate File Permission / executable bit
Include x86 BusyBox for processing popular run-program functions
Redirect mount points to local directories to simulate installation
Set/Provide Build Properties
Simulate Device Status such as available space etc.
Provide Arm updater-binary to match the api which is validator
Register Device Specific Additional Functions
Error Resolution Suggestions