web_add_package · PC-Control MCP Server MCP: Risk & Policy

WHAT IT DOES

What web_add_package does on PC-Control MCP Server

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

WHY IT NEEDS A POLICY

Why web_add_package needs a policy

Adding a package modifies system dependencies and installed software, which is a reversible write operation. However, it could have significant side effects (installing malicious packages, breaking compatibility, consuming resources), warranting 'high' severity. Confidence is moderate-to-good due to empty description but clear naming convention context.

From the tool's definition Tool name 'web_add_package' combined with server context showing package management capabilities ('web_detect_package_manager' is a sibling tool). The description is empty, but the name strongly indicates package installation/addition.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

web_add_package Rate-limited

web_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": {
    "web_add_package": {
      "limits": [
        {
          "counter": "web_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 PC-Control MCP Server, so you can run agents against it safely.

FAQ

Questions about web_add_package

What does the web_add_package tool do? +

web_add_package. It is categorised as a Write tool in the PC-Control 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 web_add_package? +

Register the PC-Control MCP Server MCP server in PolicyLayer and add a rule for web_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 PC-Control MCP Server. Nothing to install.

What risk level is web_add_package? +

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

Can I rate-limit web_add_package? +

Yes. Add a rate_limit block to the web_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 web_add_package completely? +

Set action: deny in the PolicyLayer policy for web_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 web_add_package? +

web_add_package is provided by the PC-Control MCP Server MCP server (krsnmlna1/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.