gdb_call_function · Gdb Multiarch MCP: Risk & Policy

WHAT IT DOES

What gdb_call_function does on Gdb Multiarch

AI agents invoke gdb_call_function to trigger actions in Gdb Multiarch. 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_call_function needs a policy

This tool directly executes code within a live target process. An AI agent could call arbitrary functions in the debugged process, potentially causing crashes, data corruption, security breaches, or unintended state changes. The explicit WARNING in the description confirms the high-risk nature of executing code in a running process context.

From the tool's definition 'Call a function in the target process. WARNING: executes code in the'

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

gdb_call_function Rate-limited

gdb_call_function 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_call_function": {
      "limits": [
        {
          "counter": "gdb_call_function_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 Multiarch, so you can run agents against it safely.

FAQ

Questions about gdb_call_function

What does the gdb_call_function tool do? +

Call a function in the target process. WARNING: executes code in the. It is categorised as a Execute tool in the Gdb Multiarch 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_call_function? +

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

What risk level is gdb_call_function? +

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

Can I rate-limit gdb_call_function? +

Yes. Add a rate_limit block to the gdb_call_function 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_call_function completely? +

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

gdb_call_function is provided by the Gdb Multiarch MCP server (sbergeron42/gdb-multiarch-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.