query_suggest_indexes

Suggest database indexes based on query patterns and table structure

SERVERPlugin Hub SOURCE@barnburner121/plugin-hub-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/barnburner121-plugin-hub-mcp/query-suggest-indexes.md

WHAT IT DOES

What query_suggest_indexes does on Plugin Hub

AI agents call query_suggest_indexes to retrieve information from Plugin Hub without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why query_suggest_indexes is rated Low

Even though query_suggest_indexes only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs query_suggest_indexes safely

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

query_suggest_indexes Allowed

query_suggest_indexes 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": {
    "query_suggest_indexes": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Plugin Hub, apply this rule, and every query_suggest_indexes call is checked against it from then on.

FAQ

Questions about query_suggest_indexes

What does the query_suggest_indexes tool do? +

Suggest database indexes based on query patterns and table structure. It is categorised as a Read tool in the Plugin Hub MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on query_suggest_indexes? +

Register the Plugin Hub MCP server in PolicyLayer and add a rule for query_suggest_indexes: 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 Plugin Hub. Nothing to install.

What risk level is query_suggest_indexes? +

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

Can I rate-limit query_suggest_indexes? +

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

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

query_suggest_indexes is provided by the Plugin Hub MCP server (@barnburner121/plugin-hub-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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