Fields

Built-in field kinds:

Kind	Value	Options
text	string	placeholder, minLength, maxLength, pattern
number	number | null	min, max, step, unit, placeholder
boolean	boolean	required requires true
category	string | null	options as strings or { label, value }
mapped-category	string | null	options as { label, value, mapping }. See Mapped Category.
onehot-category	string | null	options as { label, value, mappedTo }. Emits 0/1 one-hot columns. See OneHot Category.
date	Date | null	min, max, step
series	points array	minPoints, maxPoints, granularity, ordered, uniqueTimestamps, minDate, maxDate, minValue, maxValue, unit

Shared options:

{
  id: "email",
  kind: "text",
  label: "Email",
  description: "Used for notifications.",
  showDescriptionInline: true,
  required: true,
  defaultValue: "",
  includeInSubmission: true,
  mappedTo: "email",
  hiddenWhen: { kind: "field-value", field: "anonymous", equals: true },
  ui: { autocomplete: "email" }
}

Shared field options also include:

• showDescriptionInline: Shows description by default instead of waiting for the help button.
• inactiveFieldPolicy: Controls whether hidden/disabled fields are submitted.
• includeInSubmission: Set to false to keep a field out of values, fieldValues, serializedValues, and serializedFieldValues.
• mappedTo: Writes the field to a backend feature name, numeric position, or backend-specific map.
• valuePath: Writes the field into a nested payload path while keeping flat fieldValues.