pg_role_rls_policies

List row-level security (RLS) policies for a table or all tables in a schema. Shows policy name, command, roles, USING/WITH CHECK expressions, and permissive/restrictive type.

SERVERPostgreSQL MCP Server SOURCE@neverinfamous/postgres-mcp

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/io-github-neverinfamous-postgres-mcp/pg-role-rls-policies.md

WHAT IT DOES

What pg_role_rls_policies does on PostgreSQL MCP Server

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

RISK

Why pg_role_rls_policies is rated Low

This tool retrieves metadata about existing RLS policies (names, commands, roles, expressions, types) from the database. It performs no side effects, creates no data, executes no code, and deletes nothing. The operation is purely informational and read-only, fitting the 'Read' category.

From the tool's definition Tool name and description indicate it 'List[s] row-level security (RLS) policies' — a query operation that retrieves and displays policy configuration information without modifying or executing anything.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs pg_role_rls_policies safely

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

pg_role_rls_policies Allowed

pg_role_rls_policies 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": {
    "pg_role_rls_policies": {}
  }
}

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

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

FAQ

Questions about pg_role_rls_policies

What does the pg_role_rls_policies tool do? +

List row-level security (RLS) policies for a table or all tables in a schema. Shows policy name, command, roles, USING/WITH CHECK expressions, and permissive/restrictive type. It is categorised as a Read tool in the PostgreSQL MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on pg_role_rls_policies? +

Register the PostgreSQL MCP Server MCP server in PolicyLayer and add a rule for pg_role_rls_policies: 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 PostgreSQL MCP Server. Nothing to install.

What risk level is pg_role_rls_policies? +

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

Can I rate-limit pg_role_rls_policies? +

Yes. Add a rate_limit block to the pg_role_rls_policies 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 pg_role_rls_policies completely? +

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

pg_role_rls_policies is provided by the PostgreSQL MCP Server MCP server (@neverinfamous/postgres-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

What pg_role_rls_policies does on PostgreSQL MCP Server

Why pg_role_rls_policies is rated Low

The rule that runs pg_role_rls_policies safely

Questions about pg_role_rls_policies

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