percentage · DateTime-LocalMCPServer MCP: Risk & Policy

WHAT IT DOES

What percentage does on DateTime-LocalMCPServer

AI agents invoke percentage to trigger actions in DateTime-LocalMCPServer. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why percentage needs a policy

This tool performs a mathematical calculation (percentage). It doesn't retrieve stored data (Read), modify data (Write), delete data (Destructive), or move money (Financial). It executes a computation, similar to the sibling arithmetic tools (add, average, divide). Severity is low since it only computes a numeric result with no external side effects.

From the tool's definition 'Calculate percentage value' — performs a computation/operation on provided inputs

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

percentage Rate-limited

percentage stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "percentage": {
      "limits": [
        {
          "counter": "percentage_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches DateTime-LocalMCPServer, so you can run agents against it safely.

FAQ

Questions about percentage

What does the percentage tool do? +

Calculate percentage value. It is categorised as a Execute tool in the DateTime-LocalMCPServer MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on percentage? +

Register the DateTime-LocalMCPServer MCP server in PolicyLayer and add a rule for percentage: 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 DateTime-LocalMCPServer. Nothing to install.

What risk level is percentage? +

percentage is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit percentage? +

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

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

percentage is provided by the DateTime-LocalMCPServer MCP server (vikasprajapati1998/datetime-localmcpserver). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.