Field types reference

Every field in a form is defined as an item in the fields array of your .md frontmatter. All fields share a common set of properties.

Common properties

Property	Type	Required	Description
`id`	`string`	Yes	Snake_case identifier. Used as the key in submission payloads. Must be unique within the form.
`type`	`string`	Yes	One of the 10 types below.
`label`	`string`	Yes	Displayed above the field.
`required`	`boolean`	No	If `true`, form cannot be submitted without a value. Default: `false`.
`placeholder`	`string`	No	Hint text inside the field (text, email, textarea, number only).
`help_text`	`string`	No	Secondary text displayed below the field.
`step`	`number`	No	Groups fields into multi-step form pages. Fields with the same `step` appear together.

text

Single-line text input.

- id: company_name
  type: text
  label: Company name
  required: true
  placeholder: Acme Corp
  help_text: Legal entity name as it appears on your registration.

email

Single-line input with email format validation.

- id: contact_email
  type: email
  label: Work email
  required: true
  placeholder: you@company.com

textarea

Multi-line text input.

- id: description
  type: textarea
  label: Campaign description
  required: true
  placeholder: Describe your campaign goals and target audience.

number

Numeric input. Accepts integers and decimals.

- id: budget_usd
  type: number
  label: Budget (USD)
  placeholder: "50000"
  help_text: Approximate total budget for this campaign.

radio

Single-choice selection from a predefined list. Renders as radio buttons.

- id: campaign_type
  type: radio
  label: Campaign type
  required: true
  options:
    - CEX listing
    - OTC partnership
    - Influencer campaign
    - Media coverage

checkbox

Multi-choice selection. Renders as checkboxes. Submission value is an array of selected options.

- id: regions
  type: checkbox
  label: Target regions
  options:
    - North America
    - Europe
    - Asia Pacific
    - Latin America
    - Middle East & Africa

select

Single-choice selection rendered as a dropdown.

- id: timeline
  type: select
  label: Desired launch timeline
  required: true
  options:
    - Within 2 weeks
    - 1 month
    - 1–3 months
    - Flexible

date

Date picker. Submission value is an ISO 8601 date string (YYYY-MM-DD).

- id: launch_date
  type: date
  label: Target launch date
  help_text: The date you want the campaign to go live.

image

File upload restricted to image formats. The file is uploaded directly to Supabase Storage; the submission payload contains the storage URL.

- id: logo
  type: image
  label: Brand logo
  accept:
    - image/png
    - image/jpeg
    - image/svg+xml
  max_mb: 5
  help_text: Upload a PNG or SVG for best quality.

file

General file upload. Use accept to restrict MIME types. Like image, the payload contains the storage URL.

- id: brief_pdf
  type: file
  label: Campaign brief (PDF)
  accept:
    - application/pdf
  max_mb: 20
  help_text: Upload your full campaign brief as a PDF.

Multi-step forms

Group fields into pages with the step property. All fields sharing the same step value appear on the same page. Steps must be positive integers, and fields without a step are placed on step 1.

fields:
  - id: name
    type: text
    label: Your name
    required: true
    step: 1
  - id: email
    type: email
    label: Email
    required: true
    step: 1
  - id: campaign_type
    type: radio
    label: Campaign type
    options: [CEX, OTC, Media]
    step: 2
  - id: brief
    type: textarea
    label: Campaign brief
    step: 2
  - id: logo
    type: image
    label: Brand logo
    step: 3

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