set_breakpoint_on_text

THE RISK

High Risk

Setting a breakpoint is not a passive read; it modifies the runtime debugging state and causes code execution to pause when the breakpoint is hit. This constitutes an external operation that affects program behavior. It is reversible (breakpoints can be removed), so it doesn't qualify as Destructive, but it does trigger side effects in a running process, placing it in Execute.

From the tool's definition 'sets a breakpoint at that location' — actively modifies the debugging state of a running JS environment by injecting a breakpoint, triggering paused execution when hit

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

HOW TO CONTROL SET_BREAKPOINT_ON_TEXT

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

policy.json

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

set_breakpoint_on_text 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 MiniApp CDP MCP — 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 MiniApp CDP MCP tools

Destructive remove_breakpoints remove_breakpoints Execute break_on_xhr Sets a breakpoint that triggers when an XHR/Fetch request URL contains the specified strin Execute evaluate_script Evaluates a JavaScript expression in the current context. If execution is paused, it autom Execute step Controls execution when paused. action must be one of: Execute resume_execution resume_execution Execute switch_target Switches the CDP connection to a different target thread (e.g. from WebView to AppService) Write save_script_source Saves the full source code of a JavaScript script to a local file. Read get_paused_info Gets information about the current paused state including call stack, current location, an

All 18 MiniApp CDP MCP 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 MiniApp CDP MCP → 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_on_text tool do? +

Finds a text string in all loaded scripts and sets a breakpoint at that location. It is categorised as a Execute tool in the MiniApp CDP MCP 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_on_text? +

Register the MiniApp CDP MCP server in PolicyLayer and add a rule for set_breakpoint_on_text: 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 MiniApp CDP MCP. Nothing to install.

What risk level is set_breakpoint_on_text? +

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

Can I rate-limit set_breakpoint_on_text? +

Yes. Add a rate_limit block to the set_breakpoint_on_text 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_on_text completely? +

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

set_breakpoint_on_text is provided by the MiniApp CDP MCP server (zhizhuodemao/miniapp-cdp-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every MiniApp CDP MCP tool call.

Deterministic rules across all 18 MiniApp CDP MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

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18 MiniApp CDP MCP tools catalogued and risk-classified — across an index of 42,500+ MCP servers.

// WHAT SET_BREAKPOINT_ON_TEXT ON MINIAPP CDP MCP DOES

// THE RISK

// HOW TO CONTROL SET_BREAKPOINT_ON_TEXT

// EXPLORE