pwndbg_finish · Pwndbg Lldb MCP: Risk & Policy

WHAT IT DOES

What pwndbg_finish does on Pwndbg Lldb

AI agents invoke pwndbg_finish 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_finish needs a policy

pwndbg_finish resumes and controls execution of a debugger target process. While debuggers themselves are tools for inspection, the 'finish' command specifically continues execution until function return, which is an Execute operation that changes the state of the debugged process and can trigger arbitrary code paths and side effects depending on the program being debugged.

From the tool's definition Tool description states 'Execute until the current function returns' — this is a debugger command that resumes execution of the target process.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

pwndbg_finish Rate-limited

pwndbg_finish 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_finish": {
      "limits": [
        {
          "counter": "pwndbg_finish_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_finish

What does the pwndbg_finish tool do? +

Execute until the current function returns. 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_finish? +

Register the Pwndbg Lldb MCP server in PolicyLayer and add a rule for pwndbg_finish: 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_finish? +

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

Can I rate-limit pwndbg_finish? +

Yes. Add a rate_limit block to the pwndbg_finish 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_finish completely? +

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

pwndbg_finish 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.