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Names are full @org/slug. Skills and kits share one namespace, so add resolves the name automatically — a kit installs every skill inside it that you’re entitled to see.

What happens

  1. The package is downloaded and its sha256 verified against the registry’s recorded content hash — a mismatch aborts before anything is written.
  2. The skill lands in the central store (~/.masterskills/skills/<org>/<slug>).
  3. Links are created in every detected agent’s skills directory (org--slug). One add covers all agents on the machine.
New skills load in new agent sessions — restart the agent after installing.
For agents: add is approval-gated. Confirm the exact skill list with the user before running it — rule 1.
Private skills require membership in the owning organization; public skills install by full name from any signed-in device.