What it does

avo-meta

Add custom fields to a model without touching a migration or a resource file. Meta lets you define new properties from inside Avo: pick a name and a field type, and they show up on the record's New, Show, and Edit views. It stores everything in a single JSON column on the model, backed by StoreModel, so you get typed attributes without a wide, ever-changing schema.

Include the Avo::Metaable concern in a model and Meta gives that resource a "Meta Properties" entry in the sidebar plus a Meta panel in its views. Each property reuses a real Avo field type, text, number, boolean, date, select, code, and more, and reads back like an association: @user.meta.shoe_size. The schemas, StoreModel wiring, type casting, and default backfills behind a no-code custom-field system are already built and vetted, so your agent includes a concern instead of generating them.

See it in action

What you get

Define new properties from inside Avo: set a name and a field type, no migration or resource edit
Properties reuse real Avo field types: text, textarea, number, boolean, date, date and time, code, select, and more
Per-property options for default value, placeholder, help text, required, and which views to hide on
Adds a Meta panel to a model's New, Show, and Edit views by including the Avo::Metaable concern
Stores values in one JSON column via StoreModel, read back like an association (@user.meta.shoe_size)
Changing a property's default backfills existing records through a background job

Why it pays off

Let non-developers add a custom field in the UI instead of opening a ticket for a migration every time the data model needs to grow.
The decisions are already made: the JSON schema, StoreModel wiring, type casting, and default backfills are built, tested, and running in production apps.
Every Avo release makes it better: it reuses Avo's own field types and keeps working through upgrades, so nothing your team defined gets stranded.
Tokens, time, and focus go to your product, not to a custom-field system generated from scratch.