detect_n_plus_one

A read tool on the Mcpg MCP server.

SERVERMcpg SOURCEpypi:mcpg

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-devopam-mcpg/detect-n-plus-one.md

WHAT IT DOES

What detect_n_plus_one does on Mcpg

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

RISK

Why detect_n_plus_one is rated Low

The name indicates this is a query analysis/detection tool that identifies problematic query patterns (N+1 queries) without modifying data. This is consistent with other sibling tools like 'analyze_query_plan' and 'analyze_lock_hotspots' which are all diagnostic in nature.

From the tool's definition Tool name 'detect_n_plus_one' suggests analysis of database query patterns to identify N+1 query problems, which is a diagnostic/investigative operation with no side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs detect_n_plus_one safely

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

detect_n_plus_one Allowed

detect_n_plus_one 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": {
    "detect_n_plus_one": {}
  }
}

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

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

FAQ

Questions about detect_n_plus_one

What does the detect_n_plus_one tool do? +

detect_n_plus_one is a read tool on the Mcpg MCP server. It is categorised as a Read tool in the Mcpg MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on detect_n_plus_one? +

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

What risk level is detect_n_plus_one? +

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

Can I rate-limit detect_n_plus_one? +

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

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

detect_n_plus_one is provided by the Mcpg MCP server (pypi:mcpg). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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