list_realtime_publications

A read tool on the Supabase MCP Server - Self-Hosted Edition MCP server.

SERVERSupabase MCP Server - Self-Hosted Edition SOURCEabdqum/supabase-mcp-selfhosted

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/abdqum-supabase-mcp-selfhosted/list-realtime-publications.md

WHAT IT DOES

What list_realtime_publications does on Supabase MCP Server - Self-Hosted Edition

AI agents call list_realtime_publications to retrieve information from Supabase MCP Server - Self-Hosted Edition 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_realtime_publications is rated Low

The verb 'list' indicates data retrieval with no side effects. Querying realtime publication subscriptions is a passive operation that returns current state without altering it.

From the tool's definition Tool name 'list_realtime_publications' follows the 'list_*' pattern, which is conventionally a read-only operation that retrieves existing resources without modification. The server context (Supabase) confirms this is a database/realtime infrastructure tool.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs list_realtime_publications safely

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

list_realtime_publications Allowed

list_realtime_publications 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_realtime_publications": {}
  }
}

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

The button opens the PolicyLayer dashboard: create your workspace, connect Supabase MCP Server - Self-Hosted Edition, apply this rule, and every list_realtime_publications call is checked against it from then on.

FAQ

Questions about list_realtime_publications

What does the list_realtime_publications tool do? +

list_realtime_publications is a read tool on the Supabase MCP Server - Self-Hosted Edition MCP server. It is categorised as a Read tool in the Supabase MCP Server - Self-Hosted Edition MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_realtime_publications? +

Register the Supabase MCP Server - Self-Hosted Edition MCP server in PolicyLayer and add a rule for list_realtime_publications: 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 MCP Server - Self-Hosted Edition. Nothing to install.

What risk level is list_realtime_publications? +

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

Can I rate-limit list_realtime_publications? +

Yes. Add a rate_limit block to the list_realtime_publications 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_realtime_publications completely? +

Set action: deny in the PolicyLayer policy for list_realtime_publications. 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_realtime_publications? +

list_realtime_publications is provided by the Supabase MCP Server - Self-Hosted Edition MCP server (abdqum/supabase-mcp-selfhosted). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on Supabase MCP Server - Self-Hosted Edition, and thousands of servers like it.

This server

All 57 Supabase MCP Server - Self-Hosted Edition tools →

Across the catalogue

aiva_list_affiliates on AIVA MCP Server →list_circuits on 0gzk →list_agents on 0rca Dojo MCP Server → The MCP Attack Database →

Guides

Roll out MCP under one policy →Data exfiltration →MCP token cost →