pg_doc_add

Add one or more JSON documents to a collection.

SERVERPostgreSQL MCP Server SOURCE@neverinfamous/postgres-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-neverinfamous-postgres-mcp/pg-doc-add.md

WHAT IT DOES

What pg_doc_add does on PostgreSQL MCP Server

AI agents use pg_doc_add to create or update resources in PostgreSQL MCP Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your PostgreSQL MCP Server environment.

RISK

Why pg_doc_add is rated Medium

This tool creates or modifies data (adds documents) which is reversible (documents can be deleted or updated). While 'Add' suggests insertional rather than destructive behavior, the 'high' severity reflects that uncontrolled document insertion could bloat the database, cause performance degradation, or introduce malicious data at scale.

From the tool's definition Tool name 'pg_doc_add' and description 'Add one or more JSON documents to a collection' explicitly indicates creation/modification of data.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs pg_doc_add 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_doc_add, this is the rule to start with:

pg_doc_add Rate-limited

pg_doc_add stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "pg_doc_add": {
      "limits": [
        {
          "counter": "pg_doc_add_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT 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_doc_add call is checked against it from then on.

FAQ

Questions about pg_doc_add

What does the pg_doc_add tool do? +

Add one or more JSON documents to a collection. It is categorised as a Write tool in the PostgreSQL MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on pg_doc_add? +

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

pg_doc_add is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit pg_doc_add? +

Yes. Add a rate_limit block to the pg_doc_add 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_doc_add completely? +

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

pg_doc_add 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_doc_add does on PostgreSQL MCP Server

Why pg_doc_add is rated Medium

The rule that runs pg_doc_add safely

Questions about pg_doc_add

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