gdb_breakpoint · Gdb MCP: Risk & Policy

WHAT IT DOES

What gdb_breakpoint does on Gdb

AI agents invoke gdb_breakpoint 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_breakpoint needs a policy

This tool controls debugger breakpoints and watchpoints, which directly affects execution flow of a running process. While listing is a read operation, the primary actions (add, delete, enable, disable, condition, clear) modify the debugging state and control how a program executes. In a CTF/pwn or crash analysis context, manipulating breakpoints can alter program behavior and memory inspection.

From the tool's definition Add, delete, enable, disable, list, condition, or clear breakpoints/watchpoints

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

gdb_breakpoint Rate-limited

gdb_breakpoint 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_breakpoint": {
      "limits": [
        {
          "counter": "gdb_breakpoint_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_breakpoint

What does the gdb_breakpoint tool do? +

Add, delete, enable, disable, list, condition, or clear breakpoints/watchpoints. 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_breakpoint? +

Register the Gdb MCP server in PolicyLayer and add a rule for gdb_breakpoint: 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_breakpoint? +

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

Can I rate-limit gdb_breakpoint? +

Yes. Add a rate_limit block to the gdb_breakpoint 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_breakpoint completely? +

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

gdb_breakpoint 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.