PostgreSQL_create_schema

Create a new database schema.

SERVERPostgres SOURCEmukul975/postgres-mcp-server

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/mukul975-postgres-mcp-server/postgresql-create-schema.md

WHAT IT DOES

What PostgreSQL_create_schema does on Postgres

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

RISK

Why PostgreSQL_create_schema is rated Medium

Creating a schema modifies the database structure but is reversible via DROP SCHEMA, making it a Write operation rather than Destructive. The blast radius is medium because incorrect schema creation could interfere with application functionality and require cleanup, but the change is not irreversible.

From the tool's definition Tool name contains 'create' and description states 'Create a new database schema', indicating reversible data structure creation.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs PostgreSQL_create_schema safely

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

PostgreSQL_create_schema Rate-limited

PostgreSQL_create_schema 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": {
    "PostgreSQL_create_schema": {
      "limits": [
        {
          "counter": "postgresql_create_schema_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 Postgres, apply this rule, and every PostgreSQL_create_schema call is checked against it from then on.

FAQ

Questions about PostgreSQL_create_schema

What does the PostgreSQL_create_schema tool do? +

Create a new database schema. It is categorised as a Write tool in the Postgres MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on PostgreSQL_create_schema? +

Register the Postgres MCP server in PolicyLayer and add a rule for PostgreSQL_create_schema: 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 Postgres. Nothing to install.

What risk level is PostgreSQL_create_schema? +

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

Can I rate-limit PostgreSQL_create_schema? +

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

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

PostgreSQL_create_schema is provided by the Postgres MCP server (mukul975/postgres-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

What PostgreSQL_create_schema does on Postgres

Why PostgreSQL_create_schema is rated Medium

The rule that runs PostgreSQL_create_schema safely

Questions about PostgreSQL_create_schema

More on Postgres, and thousands of servers like it.