Wraps Packer's azure-arm builder for creating custom Azure VM images, either as managed images or Azure Compute Gallery entries. You'll use this when you need golden images with your tooling baked in rather than provisioning at boot time. The skill covers both service principal and managed identity auth, and helpfully warns you upfront that builds take 15-45 minutes and cost actual money. Good examples for both basic managed images and gallery images with multi-region replication. The troubleshooting section is practical, especially the reminder that Compute Gallery versions are immutable, so you can't just rebuild over an existing version number.
npx skills add https://github.com/hashicorp/agent-skills --skill azure-image-builder