Hubo v0.4.4

What's changed

• Package Hubo's core workflow inside the standard skill references directory.
• Ensure Codex includes both the workflow and host adapters in the uploaded skill bundle.
• Preserve the shared Karpathy-inspired and Ponytail principles introduced in v0.4.3.

Validation

• Hubo skill validation passed.
• Claude marketplace validation passed.
• All plugin manifests are synchronized at 0.4.4.