list_organizations

Lists all organizations that the user is a member of.

SERVERSupabase SOURCE@modelcontextprotocol/server-supabase

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade D, identity verified Pull the record →

This record as markdown: /tools/supabase/list-organizations.md

WHAT IT DOES

What list_organizations does on Supabase

AI agents call list_organizations to retrieve information from Supabase without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why list_organizations is rated Low

This tool retrieves organizational membership information for the authenticated user. It performs a query operation without modifying, executing external operations, or deleting data. The blast radius is minimal—exposure could reveal organizational structure but poses no risk of unintended modifications or actions.

From the tool's definition Tool name 'list_organizations' combined with description 'Lists all organizations that the user is a member of' indicates a retrieval operation with no side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs list_organizations safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Supabase, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For list_organizations, this is the rule to start with:

list_organizations Allowed

list_organizations is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_organizations": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Supabase, apply this rule, and every list_organizations call is checked against it from then on.

FAQ

Questions about list_organizations

What does the list_organizations tool do? +

Lists all organizations that the user is a member of. It is categorised as a Read tool in the Supabase MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_organizations? +

Register the Supabase MCP server in PolicyLayer and add a rule for list_organizations: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Supabase. Nothing to install.

What risk level is list_organizations? +

list_organizations is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit list_organizations? +

Yes. Add a rate_limit block to the list_organizations rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block list_organizations completely? +

Set action: deny in the PolicyLayer policy for list_organizations. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides list_organizations? +

list_organizations is provided by the Supabase MCP server (@modelcontextprotocol/server-supabase). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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