Work in progress.
from the home page as:
This page contains important information regarding writing extensions for the Add-Meta-Tags plugin.
Add-Meta-Tags is Free software. It contains an abundance of filter hooks (some action hooks too) which can be used to customize the plugin functionality and its output to a great extend. These customizations can be included in a separate plugin which can then be installed along side with Add-Meta-Tags.
As long as you don't re-use code which is released in the Add-Meta-Tags distribution packages or source code repositories you are not bound by the Add-Meta-Tags licensing and can release your work under whatever license you see fit.
We are very strict with naming
The developer recognizes as Add-Meta-Tags extensions any WordPress plugin which customizes or extends the plugin's functionality through WordPress filter/action hook system.
prowe recognize only those which are prefixed with amt-ext-
if slug is amt-ext, then you may use Add-Meta-Tags as prefix in the name of the plugin
not obliged to maintain backwards compatibility. hooks, features, etc changed without warning notice.
OLD from text file
- not use add-meta-tags in name of wordpress plugins - extensions should use prefix: amt_extensionprefix_.... for functions, classses, variables, constants - list of plugins which have our blessing - should not affect 3party plugins functionality apart from add-meta-tags - should be free without commercial parts - description should clearly state that it extends AMT