Qualities

In order to be included in the FreeCAD Addon Index, an addon must comply with a minimum set of quality requirements.

Governance

The addon has at least one active maintainer or is in the process of finding a new maintainer.
The addon maintainers address user concerns such as open issues, pull requests, and security advisories in a timely manner.

The addon complies with GDPR, doesn’t send user data to 3rd parties unless expressly permitted by the user, and in permitted cases keeps the data to the minimum required.
The addon is open, clear and direct with the user about any external connections, services, etc. it uses, what data it sends, when and how often it does so, etc.
The addon informs its users and re-requests consent if its use of their data changes.
The addon makes an effort to use secure storage options of the user’s system if it saves data locally.
The addon accepts and addresses security reports as soon as possible and implements necessary fixes in a timely manner, including previously released versions.
The addon informs users about security issues as soon as is appropriate and if needed provides adequate instructions on how to resolve the problem locally.

The addon has one or more fitting licenses and provides a copy of their text in the source when required by the license.

The addon’s code is Python 3+ based.
The addon’s code uses the FreeCAD-provided Qt wrappers.
The addon has a valid manifest (package.xml file).
The addon is compatible with the latest version of FreeCAD unless it’s specifically designed to only be used with older versions.
The addon doesn’t require dependencies unless they are functionally necessary.
The addon only vendors dependencies when technically necessary and doesn’t attempt to circumvent the package allow list.