pg_vector_index_optimize

Analyze vector column and recommend optimal index parameters for IVFFlat/HNSW.

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-vector-index-optimize.md

WHAT IT DOES

What pg_vector_index_optimize does on PostgreSQL MCP Server

AI agents call pg_vector_index_optimize 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_vector_index_optimize is rated Low

The tool performs read-only analysis of existing vector columns and provides recommendations. It retrieves information about vector indexes and suggests parameters, but does not execute any modifications, destructive operations, or external code execution. The verb 'analyze' and 'recommend' indicate information retrieval and suggestion generation, which are characteristic of Read category tools.

From the tool's definition Tool description states it 'Analyze vector column and recommend optimal index parameters' — core action is analysis and recommendation generation without modifying or deleting data.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs pg_vector_index_optimize 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_vector_index_optimize, this is the rule to start with:

pg_vector_index_optimize Allowed

pg_vector_index_optimize 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_vector_index_optimize": {}
  }
}

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_vector_index_optimize call is checked against it from then on.

FAQ

Questions about pg_vector_index_optimize

What does the pg_vector_index_optimize tool do? +

Analyze vector column and recommend optimal index parameters for IVFFlat/HNSW. 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_vector_index_optimize? +

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

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

Can I rate-limit pg_vector_index_optimize? +

Yes. Add a rate_limit block to the pg_vector_index_optimize 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_vector_index_optimize completely? +

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

pg_vector_index_optimize 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_vector_index_optimize does on PostgreSQL MCP Server

Why pg_vector_index_optimize is rated Low

The rule that runs pg_vector_index_optimize safely

Questions about pg_vector_index_optimize

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