pg_jsonb_normalize

Normalize JSONB to key-value pairs. Use idColumn to specify row identifier (default:

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-jsonb-normalize.md

WHAT IT DOES

What pg_jsonb_normalize does on PostgreSQL MCP Server

AI agents call pg_jsonb_normalize 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_jsonb_normalize is rated Low

This tool retrieves and transforms JSONB data into a normalized format. It performs data extraction and reformatting operations with no side effects—no data is created, modified, deleted, or executed. The operation is read-only, making it a Read category tool with low severity risk.

From the tool's definition Tool name 'pg_jsonb_normalize' and description 'Normalize JSONB to key-value pairs' indicates data transformation and retrieval. The mention of 'idColumn to specify row identifier' suggests querying and reshaping existing data without modification.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs pg_jsonb_normalize 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_jsonb_normalize, this is the rule to start with:

pg_jsonb_normalize Allowed

pg_jsonb_normalize 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_jsonb_normalize": {}
  }
}

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_jsonb_normalize call is checked against it from then on.

FAQ

Questions about pg_jsonb_normalize

What does the pg_jsonb_normalize tool do? +

Normalize JSONB to key-value pairs. Use idColumn to specify row identifier (default:. 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_jsonb_normalize? +

Register the PostgreSQL MCP Server MCP server in PolicyLayer and add a rule for pg_jsonb_normalize: 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_jsonb_normalize? +

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

Can I rate-limit pg_jsonb_normalize? +

Yes. Add a rate_limit block to the pg_jsonb_normalize 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_jsonb_normalize completely? +

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

pg_jsonb_normalize 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_jsonb_normalize does on PostgreSQL MCP Server

Why pg_jsonb_normalize is rated Low

The rule that runs pg_jsonb_normalize safely

Questions about pg_jsonb_normalize

More on PostgreSQL MCP Server, and thousands of servers like it.