Layers
A layer is a versioned block of prompt content inside a skill version. Layers are ordered, typed, and combined deterministically during preview and runtime.
What a layer includes
type- base, task, policy, format, or override.mode- append or replace.content- the actual prompt text.
How layers are used
- The runtime renders layers into a single prompt.
- Order and mode determine how content is combined.
- Preview exposes the rendered prompt and composition trace before you run.