supabase-typegen

TypeScript type synchronization with Supabase uses the Supabase CLI to auto-generate types from your live database schema. Run `npx supabase gen types typescript --linked` to create or update your database.types.ts file whenever schema changes occur, ensuring type consistency across cloud and on-premise environments.

Regenerate types after adding tables or columns to your database schema, before implementing repository changes, or when deploying across environments. This automation prevents type mismatches and catches schema drift early by keeping your TypeScript definitions aligned with actual database structure.

Yes, the Supabase CLI supports automated type generation for cloud environments through linked projects. On-premise Supabase instances require manual type definition steps, but the same CLI workflow applies once your environment is configured with proper credentials and database access.

After running type generation, review diffs in your database.types.ts file to confirm schema changes are reflected correctly. The Skill provides recommended git commit steps and change verification guidance to ensure your TypeScript types accurately represent the updated database structure before merging.

Linked type generation connects your repository to a specific Supabase project, enabling automatic updates when schema changes. This approach maintains type consistency across team members and deployments by centralizing schema truth in your cloud project rather than managing types manually.