usage

Detailed usage statistics with properly spaced markdown tables: most used MCPs, tool counts, hourly patterns, peak usage times. Tables are readable in plain text without rendering.

SERVERNcp SOURCE@portel/ncp

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-portel-dev-ncp/usage.md

WHAT IT DOES

What usage does on Ncp

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

RISK

Why usage is rated Low

This tool only reads and returns usage statistics and analytics data. There are no side effects, no data modification, no code execution. It formats and presents existing telemetry data in readable markdown tables.

From the tool's definition 'Detailed usage statistics' and 'most used MCPs, tool counts, hourly patterns, peak usage times' — purely retrieves and displays statistical data

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs usage safely

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

usage Allowed

usage 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": {
    "usage": {}
  }
}

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

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

FAQ

Questions about usage

What does the usage tool do? +

Detailed usage statistics with properly spaced markdown tables: most used MCPs, tool counts, hourly patterns, peak usage times. Tables are readable in plain text without rendering. It is categorised as a Read tool in the Ncp MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on usage? +

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

What risk level is usage? +

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

Can I rate-limit usage? +

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

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

usage is provided by the Ncp MCP server (@portel/ncp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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