numeric_planner · PlanningCopilot MCP: Risk & Policy

WHAT IT DOES

What numeric_planner does on PlanningCopilot

AI agents use numeric_planner to create or update resources in PlanningCopilot — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your PlanningCopilot environment.

WHY IT NEEDS A POLICY

Why numeric_planner needs a policy

An AI agent can call numeric_planner faster than any human can review — one bad instruction and it creates or modifies resources in PlanningCopilot by the hundred, each call as confident as the last.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

numeric_planner Rate-limited

numeric_planner stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "numeric_planner": {
      "limits": [
        {
          "counter": "numeric_planner_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

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

FAQ

Questions about numeric_planner

What does the numeric_planner tool do? +

numeric_planner. It is categorised as a Write tool in the PlanningCopilot MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on numeric_planner? +

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

What risk level is numeric_planner? +

numeric_planner is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit numeric_planner? +

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

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

numeric_planner is provided by the PlanningCopilot MCP server (spl-bgu/planningcopilot). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.