uuid

Generate a new UUID v4.

SERVERYaver SOURCEyaver-cli

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-kivanccakmak-yaver/uuid.md

WHAT IT DOES

What uuid does on Yaver

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

RISK

Why uuid is rated Low

UUID generation is a pure computation that returns a value without modifying, querying, or affecting any system state. It is informational only and carries minimal risk even if misused by an agent.

From the tool's definition Tool name 'uuid' and description 'Generate a new UUID v4' – generates a random identifier with no side effects, no data access, no external operations.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs uuid safely

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

uuid Allowed

uuid 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": {
    "uuid": {}
  }
}

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

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

FAQ

Questions about uuid

What does the uuid tool do? +

Generate a new UUID v4. It is categorised as a Read tool in the Yaver MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on uuid? +

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

What risk level is uuid? +

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

Can I rate-limit uuid? +

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

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

uuid is provided by the Yaver MCP server (yaver-cli). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on Yaver, and thousands of servers like it.

This server

All 645 Yaver tools →

Across the catalogue

The MCP Attack Database →

Guides

Roll out MCP under one policy →Data exfiltration →MCP token cost →