skills

The invocable skill plugins live here: leaf plugins that materialize into the harness's skill dir, where an agent invokes them on demand, each carrying surface: skill. Grouping them keeps .plugins/ legible at a glance — the skill plugins on this shelf, the command presets on commands, the auxiliary system contracts on prompts, with core a flat child beside them.

This node is a shelf, not a surface (the prompts shape): it declares no surface field and gathers nothing itself. Discovery is recursive and field-driven (surface), so a resident plugs in exactly as it would at the root. A plugin that serves BOTH surfaces — distill is skill and command — shelves here by its primary (skill) identity and still gathers as a command through its field. The init templates mirror this layout. The shelf stays pure presentation: moving a resident beneath it changes neither that plugin's identity nor the surfaces gathered from its frontmatter.