Airlock RLS

Name: Airlock RLS
Author: mateuszingano

by mateuszinganoversion 0.1.1i★ –iRuns on your computer

Registry nameio.github.mateuszingano/airlock-rls-mcp

Install

Overview

Description from the maker (original English)

Scan a deployed site for an exposed Supabase service_role key and audit Row Level Security.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiVery new↓ 48/wk · ★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Cybersecurity

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
The registry lists no key to fill in.

You need

npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "airlock-rls": {
      "command": "npx",
      "args": [
        "-y",
        "airlock-rls-mcp"
      ]
    }
  }
}

Run this in your terminal

claude mcp add airlock-rls -- npx -y airlock-rls-mcp

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "airlock-rls": {
      "command": "npx",
      "args": [
        "-y",
        "airlock-rls-mcp"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "airlock-rls": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "airlock-rls-mcp"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 10, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account mateuszingano, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Cybersecurityi

More stars than 0% of the other 1011 servers in this category
Published to the registry more recently than 58% of the other 1011 servers in this category
Basic checks equal to or better than 100% of the other 1011 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Airlock RLS safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.1.1) reached the registry 27 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: adfraudit – Klickbetrug / Click Fraud, Keeper Security MCP, Panda Web Security Tools

Alternatives

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README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

Airlock RLS MCP — Supabase leak checks inside your AI coding agent

Let Cursor, Claude Code, or any MCP client check a Supabase app for leaks while it builds it. It catches the most common vibe-coding footgun: a service_role key shipped to the browser, and Row Level Security that's off or wide open.

The engine is Airlock RLS (npm i airlock-rls), the CI gate for Supabase RLS. This package is a thin MCP wrapper around it.

Ten tools

Local (no account needed)

`scan_site_for_exposed_key` — give it a deployed URL. It reads the page and its JS bundles for an exposed Supabase service_role key (a service_role JWT or an sb_secret_... key). No database, no credentials, just the public URL. A hit means anyone who reads it bypasses every RLS policy. It never prints the full key.

`audit_supabase_rls` — give it a Postgres connection string. It fails on RLS-off tables, permissive (always-true) policies, and anon/authenticated tenant leaks. It reads only catalog metadata (pg_tables, pg_policies, grants), never your row data, so a read-only role is enough. Returns a human-readable summary.

`get_findings` — same audit as audit_supabase_rls, but returns machine-readable structured JSON: findings grouped by severity, severity counts, table count, allowed (waived) findings, and stats. Built for agents that need to iterate over findings, generate fixes, or build reports programmatically.

`explain_finding` — pure lookup, no database needed. Give it a finding kind string (e.g. rls_disabled, permissive_true, cross_tenant_read_leak) and it returns: what it means, why it's dangerous, how to fix it with example SQL, and related finding kinds. Use after get_findings or audit_supabase_rls to understand a finding before fixing it.

`generate_fix` — pure function, no database needed. Give it a finding kind, a table_name, and optionally a policy_name, and it returns the exact SQL to fix that specific finding, ready to paste into a migration file.

Hosted Monitor (needs an API key)

These tools talk to the Airlock Monitor REST API. Get an API key from the Monitor dashboard.

`list_monitor_projects` — list the Supabase projects connected to your Monitor account.

`start_monitor_run` — start an RLS audit + DAST run on a connected project. Returns a run id to poll.

`get_monitor_run` — check the status of a run (queued → running → completed/failed).

`get_monitor_findings` — get the findings (leaks, warnings, suggested SQL fixes) from a completed run.

`get_monitor_attestation` — download the signed attestation (Ed25519 + SHA-256) for a completed run. Anyone can verify it at shipsealed.com/verify without an account.

Add it to your MCP client

"mcpServers": { "airlock": { "command": "npx", "args": ["-y", "airlock-rls-mcp"] } } }

That's the same block for Cursor (~/.cursor/mcp.json), Claude Desktop (claude_desktop_config.json) and other MCP clients. With Claude Code:

claude mcp add airlock -- npx -y airlock-rls-mcp

Then ask the agent things like *"scan https://myapp.com for an exposed Supabase key"*, *"audit the RLS on this database"*, *"explain the rls_disabled finding"*, *"generate the fix for permissive_true on my profiles table"*, or *"run a Monitor check on my project and show the findings"* and it calls the tools.

Requirements

Node.js 18 or newer.

Develop

npm install

npm run smoke # starts the server and checks all tools are advertised

Guides on Supabase RLS, a live cross-tenant demo, and the hosted Airlock Monitor (continuous checks of your live database): shipsealed.com

Airlock RLS

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Cybersecurityi

Common questions

Alternatives

adfraudit – Klickbetrug / Click Fraud

Keeper Security MCP

Panda Web Security Tools

README from the maker

Airlock RLS MCP — Supabase leak checks inside your AI coding agent

Ten tools

Local (no account needed)

Hosted Monitor (needs an API key)

Add it to your MCP client

Requirements

Develop

More

License