AI agents call list_breakpoints to retrieve information from MiniApp CDP MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and enumerates breakpoint metadata from an already-running debug session. It performs no mutations, code execution, or side effects. While the broader server enables reverse engineering of WeChat MiniApps, this specific tool is purely informational/read-only.
From the tool's definition Tool name is 'list_breakpoints' and description states it 'Lists all active XHR and code breakpoints' — a query operation that retrieves debugging state without modifying it.
Documented attack patterns abuse exactly the kind of access list_breakpoints gives an agent:
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 list_breakpoints:
{
"version": "1",
"default": "deny",
"tools": {
"list_breakpoints": {}
}
}list_breakpoints is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Lists all active XHR and code breakpoints. It is categorised as a Read tool in the MiniApp CDP MCP MCP Server, which means it retrieves data without modifying state.
Register the MiniApp CDP MCP server in PolicyLayer and add a rule for list_breakpoints: 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.
list_breakpoints is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the list_breakpoints 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.
Set action: deny in the PolicyLayer policy for list_breakpoints. 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.
list_breakpoints 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.
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.