Strategy for adding SDK references from microsoft/skills into plugin skills using the Hybrid Inline approach.
Skills are sandboxed — a skill's SKILL.md can only reference files within its own folder tree. Cross-skill file references do not work per the agentskills.io specification. Plugin skills (e.g., azure-storage, azure-ai) need SDK code patterns from microsoft/skills source skills (e.g., azure-storage-blob-py, azure-search-documents-ts) but cannot link to them directly.