bulk_insert · PostgreSQL MCP Server MCP: Risk & Policy

WHAT IT DOES

What bulk_insert does on PostgreSQL MCP Server

AI agents use bulk_insert 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.

WHY IT NEEDS A POLICY

Why bulk_insert needs a policy

bulk_insert performs a write operation that creates new records in a database table. While it modifies the database state, the operation is reversible (rows can be deleted later) and does not execute arbitrary code, delete data permanently, or move money.

From the tool's definition Tool name 'bulk_insert' and description 'Insert multiple rows into a table' indicate data creation/modification operations.

Risk signalsBulk/mass operation — affects multiple targets

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

bulk_insert Rate-limited

bulk_insert 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": {
    "bulk_insert": {
      "limits": [
        {
          "counter": "bulk_insert_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches PostgreSQL MCP Server, so you can run agents against it safely.

FAQ

Questions about bulk_insert

What does the bulk_insert tool do? +

Insert multiple rows into a table. 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 bulk_insert? +

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

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

Can I rate-limit bulk_insert? +

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

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

bulk_insert is provided by the PostgreSQL MCP Server MCP server (reckersai/mcpg). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.