breakpoint_disable · Rr MCP: Risk & Policy

WHAT IT DOES

What breakpoint_disable does on Rr

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

WHY IT NEEDS A POLICY

Why breakpoint_disable needs a policy

This tool modifies the state of a debugging breakpoint by disabling it, but the operation is explicitly reversible (the breakpoint is not deleted). This is a Write operation with low severity since it only affects a debugging session's breakpoint configuration, not production data or systems.

From the tool's definition 'Temporarily disable a breakpoint without deleting' — modifies breakpoint state reversibly, explicitly not destructive

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

breakpoint_disable Rate-limited

breakpoint_disable 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": {
    "breakpoint_disable": {
      "limits": [
        {
          "counter": "breakpoint_disable_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 Rr, so you can run agents against it safely.

FAQ

Questions about breakpoint_disable

What does the breakpoint_disable tool do? +

Temporarily disable a breakpoint without deleting. It is categorised as a Write tool in the Rr MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on breakpoint_disable? +

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

What risk level is breakpoint_disable? +

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

Can I rate-limit breakpoint_disable? +

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

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

breakpoint_disable is provided by the Rr MCP server (jnjaeschke/rr-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.