gdb_mi · Gdb MCP: Risk & Policy

WHAT IT DOES

What gdb_mi does on Gdb

AI agents invoke gdb_mi to trigger actions in Gdb. 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 gdb_mi needs a policy

This tool allows execution of arbitrary GDB commands through the Machine Interface protocol. GDB MI commands can read/write memory, modify registers, set breakpoints, and execute code within debugged processes.

From the tool's definition Tool description states 'Execute a raw GDB/MI command' — direct execution of arbitrary debugger commands. GDB MI (Machine Interface) commands can inspect, modify, and control running processes including memory manipulation, register modification, and code…

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

gdb_mi Rate-limited

gdb_mi 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": {
    "gdb_mi": {
      "limits": [
        {
          "counter": "gdb_mi_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 Gdb, so you can run agents against it safely.

FAQ

Questions about gdb_mi

What does the gdb_mi tool do? +

Execute a raw GDB/MI command with warning-and-confirm risk handling. It is categorised as a Execute tool in the Gdb MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on gdb_mi? +

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

What risk level is gdb_mi? +

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

Can I rate-limit gdb_mi? +

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

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

gdb_mi is provided by the Gdb MCP server (traver88/gdb-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.