Reserved slugs

reserved-slugs checks the slugs your users pick, such as an organization's URL segment. A slug is lowercase letters, digits and inner hyphens, within the configured length, and not one of the reserved words (admin, api, login, www and others) or your own.

better-supabase add reserved-slugs

Track a column, and its trigger rejects a bad slug on insert and update:

select better_supabase.track_slug('public.organizations');
-- or a column with another name
select better_supabase.track_slug('public.projects', 'handle');

An invalid slug raises 23514 with the hint SLUG_INVALID, and a reserved one with SLUG_RESERVED. Call better_supabase.slug_problem(slug) to check a slug before you save it: it returns invalid, reserved or null.

OptionsCopy Anchor Link

blocks: {
  "reserved-slugs": { options: { minLength: 3, slugs: ["pricing", "teams"] } },
},

The reserved words live in the reserved_slugs table, which every role can read. The workspace-url-field recipe renders an organization form whose reserved and taken slugs come back as field errors.