Extension Runtime and Packaging

Trigger

Use this skill when the user:

• Needs a third-party Python package inside an extension (requests, numpy, Pillow)
• Writes settings, caches or downloads from an add-on and asks where they should go
• Makes network calls from an add-on, or asks about the network permission
• Builds, validates or publishes extension zips, locally or in CI
• Hits ValueError: The "package" does not name an extension, or imports that work in a folder add-on but break once installed as an extension

addon-scaffolding covers the manifest fields, file layout and register symmetry. This skill covers what breaks after that: dependencies, data, network and packaging.

Required inputs