up · WineDbg MCP Server MCP: Risk & Policy

WHAT IT DOES

What up does on WineDbg MCP Server

AI agents invoke up to trigger actions in WineDbg MCP Server. 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 up needs a policy

Navigating the call stack in a debugger is an active operation that changes the debugger's current frame context, affecting subsequent debug commands and potentially the execution of the target process. It is not a simple read since it modifies debugger state, and it fits best under Execute as it triggers an external debugger operation.

From the tool's definition Move up the stack — operates within a live debugger session controlling execution state of a Windows process under Wine

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

up Rate-limited

up 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": {
    "up": {
      "limits": [
        {
          "counter": "up_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 WineDbg MCP Server, so you can run agents against it safely.

FAQ

Questions about up

What does the up tool do? +

Move up the stack. It is categorised as a Execute tool in the WineDbg MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on up? +

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

What risk level is up? +

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

Can I rate-limit up? +

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

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

up is provided by the WineDbg MCP Server MCP server (maci0/mcp-winedbg). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.