supabase
The Supabase skill provides guidance for developing with the Supabase platform, including database management, authentication, RLS policies, CLI usage, and MCP server integration. It emphasizes verifying implementation against current documentation, following security checklists, and using specific CLI commands for schema migrations.
Is supabase safe to install?
Review the source first: our audit of supabase's source files found 10 shell commands, 3 external URLs, file reads and writes (high risk). Every command and URL listed appears verbatim in the skill's source. The skill executes shell commands and makes network requests to external endpoints. It modifies local database migration files and interacts with remote Supabase infrastructure.
How we audit skills: our security review methodology.
Who is this skill for?
Developers building applications with Supabase who require assistance with database schema design, security policy implementation, CLI operations, and integration troubleshooting.
What can you do with it?
- Managing Supabase database schemas and migrations
- Implementing and auditing Row Level Security (RLS) policies
- Configuring authentication and session management
- Troubleshooting Supabase CLI and MCP server connections
- Verifying Supabase feature implementation against current documentation
How good is this skill?
Quality score: 5/10. The skill provides clear, actionable security guidelines and specific CLI workflows. It correctly identifies the need for version-specific verification.
What does the skill file contain?
# Supabase ## Core Principles **1. Supabase changes frequently — verify against changelog and current docs before implementing.** Do not rely on training data for Supabase features. Function signatures, config.toml settings, and API conventions change between versions. First, fetch `https://supabase.com/changelog.md` (a lightweight summary index — not a heavy pull), scan for `breaking-change` tags relevant to your task, and follow the linked page for any that apply. Then look up the relevant topic using the documentation access methods below. **2. Verify your work.** After implementing any...
Frequently asked questions
How do I safely iterate on schema changes?
Use execute_sql (MCP) or supabase db query (CLI) to run SQL directly without creating migration history. Once satisfied, use supabase db pull to generate the migration file.
Why is my new table inaccessible via the Data API?
Check the Data API settings in the Supabase dashboard and ensure the anon and authenticated roles have been granted explicit access via SQL.
What is the correct way to restrict row access for authenticated users?
Combine the TO authenticated clause with a USING predicate that checks ownership, such as (select auth.uid()) = user_id.
How do I troubleshoot Supabase MCP connection issues?
Verify the server is reachable via curl, check the .mcp.json configuration file, and ensure the user has completed the OAuth 2.1 authentication flow.
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