Structural primitive — defines a single configurable field.

An Attribute is a reusable building block: "text_input", "email_input", "asset", "select", etc. It carries default data_config and ui_config that can be overridden at the ASA and ASD layers.

Key fields

• handle — unique machine identifier, used in templates and data resolution
• data_config — embedded DataConfig: data type, validation rules, source mapping
• ui_config — embedded UIConfig: input type, tag, classes, edit/view modules
• draft_config — staged config changes before promotion
• translations — JSONB map for translatable metadata (name, description)
• state — lifecycle state, used by workflows and pipelines

Virtual fields

• sample — preview sample value
• data_preview — data configuration preview for UI
• ui_preview — UI configuration preview for UI
• ui_state — transient UI state (expanded, selected, etc.)
• easy_mode — auto-generates handle/code/state from name

Config cascade

Attribute provides the base layer (layer 1) of the 4-layer cascade: Attribute defaults → ASA overrides → ASD instance → runtime enrichment.