// MCP TOOL REFERENCE

set_breakpoint

Set a breakpoint using MI (-break-insert). Args: location: Breakpoint location (symbol/address/file:line). condition: Optional breakpoint condition expression.

ServerPwno
CategoryExecute

How to control set_breakpoint ↓

WHAT SET_BREAKPOINT ON PWNO DOES

AI agents invoke set_breakpoint to trigger actions in Pwno. 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.

THE RISK

High Risk

Setting a breakpoint interacts with a live debugging session by modifying the runtime state of a running process (inserting a breakpoint via GDB Machine Interface). This is an active operation that affects program execution flow rather than merely reading data. It triggers external operations in the debugger/target process, classifying it as Execute.

From the tool's definition Set a breakpoint using MI (-break-insert)

Documented attack patterns abuse exactly the kind of access set_breakpoint gives an agent:

HOW TO CONTROL SET_BREAKPOINT

PolicyLayer is an MCP gateway — it sits between your AI agents and Pwno, and nothing reaches the server without passing your rules. This is the rule we recommend for set_breakpoint:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "set_breakpoint": {
      "limits": [
        {
          "counter": "set_breakpoint_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

set_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.

Create a free account and register Pwno — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

RATE-LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

More Pwno tools

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All 36 Pwno tools →

Execute tools on other servers

Frida Game Hacking MCP remove_breakpoint Procmon request_elevation WireMCP capture_packets Pentest Ai run_probe

Go deeper

High-risk tools in Pwno → Every high-risk tool this server exposes, in one view.
All high-risk MCP tools → Every high-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

What does the set_breakpoint tool do? +

Set a breakpoint using MI (-break-insert). Args: location: Breakpoint location (symbol/address/file:line). condition: Optional breakpoint condition expression. It is categorised as a Execute tool in the Pwno MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on set_breakpoint? +

Register the Pwno MCP server in PolicyLayer and add a rule for set_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 Pwno. Nothing to install.

What risk level is set_breakpoint? +

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

Can I rate-limit set_breakpoint? +

Yes. Add a rate_limit block to the set_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 set_breakpoint completely? +

Set action: deny in the PolicyLayer policy for set_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 set_breakpoint? +

set_breakpoint is provided by the Pwno MCP server (pwno-io/pwno-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Pwno tool call.

Deterministic rules across all 36 Pwno tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

GOVERN PWNO →

Free to start. No card required.

36 Pwno tools catalogued and risk-classified — across an index of 42,500+ MCP servers.

set_breakpoint

// WHAT SET_BREAKPOINT ON PWNO DOES

// THE RISK

// HOW TO CONTROL SET_BREAKPOINT

// EXPLORE