supabase schema builder
Generate production-ready PostgreSQL schemas, RLS security policies, and TypeScript types for Supabase projects.
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See it in action
You say
Generate a schema for a blog with users, posts, and comments. Users should only be able to edit their own posts.
Your agent does
CREATE TABLE posts ( id UUID PRIMARY KEY DEFAULT gen_random_uuid(), author_id UUID REFERENCES auth.users NOT NULL, title TEXT NOT NULL, content TEXT ); ALTER TABLE posts ENABLE ROW LEVEL SECURITY; CREATE POLICY "Authors can update own posts" ON posts FOR UPDATE USING (auth.uid() = author_id);
What you get
About this skill
The problem
Designing secure PostgreSQL schemas for Supabase is error-prone. Manually writing boilerplate for RLS policies, foreign keys, and TypeScript types often leads to security gaps or type mismatches.
What it does
- Generates complete SQL schemas with UUID primary keys and automated timestamp triggers.
- Writes granular Row Level Security (RLS) policies mapped to
auth.uid()for every table. - Produces sequential migration scripts compatible with the Supabase CLI.
- Exports strongly typed TypeScript interfaces for the
@supabase/supabase-jsclient.
Frameworks & tools
PostgreSQL, Supabase CLI, Node.js, and TypeScript.
Why this beats prompting it yourself
Standard LLM prompts often forget to enable RLS by default or miss critical foreign key constraints. This skill enforces a production-ready standard that includes essential triggers and auth-aware security policies without manual reminders.
Use cases
- Scaffolding a multi-tenant SaaS database with workspace-level isolation.
- Adding secure project boards and task management tables to an existing app.
- Generating valid TypeScript types after a schema change to fix frontend build errors.
- Creating isolated user profiles that link correctly to Supabase Auth.
How to install
Drop the file into your AI Agent. Works with Claude, Cursor, ChatGPT, and 20+ more.
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