pwndbg_step · Pwndbg Lldb MCP: Risk & Policy

WHAT IT DOES

What pwndbg_step does on Pwndbg Lldb

AI agents invoke pwndbg_step to trigger actions in Pwndbg Lldb. 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 pwndbg_step needs a policy

This tool controls debugger execution flow by stepping into the next instruction/source line in a running process. It actively drives execution of the target binary, which can trigger side effects, system calls, or other operations depending on what code is being stepped through. In an exploit development/reverse engineering context, misuse could advance execution into dangerous code paths.

From the tool's definition Step into the next source line or instruction

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

pwndbg_step Rate-limited

pwndbg_step 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": {
    "pwndbg_step": {
      "limits": [
        {
          "counter": "pwndbg_step_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 Pwndbg Lldb, so you can run agents against it safely.

FAQ

Questions about pwndbg_step

What does the pwndbg_step tool do? +

Step into the next source line or instruction. It is categorised as a Execute tool in the Pwndbg Lldb MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on pwndbg_step? +

Register the Pwndbg Lldb MCP server in PolicyLayer and add a rule for pwndbg_step: 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 Pwndbg Lldb. Nothing to install.

What risk level is pwndbg_step? +

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

Can I rate-limit pwndbg_step? +

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

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

pwndbg_step is provided by the Pwndbg Lldb MCP server (micro-evaluation-group/pwndbg-lldb-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.