add_package · Prowpt MCP Server MCP: Risk & Policy

WHAT IT DOES

What add_package does on Prowpt MCP Server

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

WHY IT NEEDS A POLICY

Why add_package needs a policy

This tool creates or modifies project state by adding a package to a project, which is reversible (packages can be removed). It does not delete data (Destructive), execute arbitrary code (Execute), move money (Financial), or merely read data (Read).

From the tool's definition Tool description states 'Add a catalog package to a project', indicating creation/modification of project configuration through addition of a package dependency or component.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

add_package Rate-limited

add_package 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": {
    "add_package": {
      "limits": [
        {
          "counter": "add_package_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 Prowpt MCP Server, so you can run agents against it safely.

FAQ

Questions about add_package

What does the add_package tool do? +

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

How do I enforce a policy on add_package? +

Register the Prowpt MCP Server MCP server in PolicyLayer and add a rule for add_package: 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 Prowpt MCP Server. Nothing to install.

What risk level is add_package? +

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

Can I rate-limit add_package? +

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

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

add_package is provided by the Prowpt MCP Server MCP server (prowptai/prowpt-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.