AI agents call get_u16 to retrieve information from Ida Domain without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a simple data retrieval operation on an analyzed binary in IDA Pro. Reading memory values is a fundamental reverse engineering query with no capability to modify the binary, execute code, or trigger external actions. The blast radius is minimal—misuse would only expose already-loaded binary data that the agent has access to analyze. This is a classic Read category tool.
From the tool's definition Tool name 'get_u16' and description 'Read 16-bit unsigned integers from memory addresses' explicitly indicate a read-only operation that retrieves data without modification or side effects.
Documented attack patterns abuse exactly the kind of access get_u16 gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Ida Domain, and nothing reaches the server without passing your rules. This is the rule we recommend for get_u16:
{
"version": "1",
"default": "deny",
"tools": {
"get_u16": {}
}
}get_u16 is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Read 16-bit unsigned integers from memory addresses. It is categorised as a Read tool in the Ida Domain MCP Server, which means it retrieves data without modifying state.
Register the Ida Domain MCP server in PolicyLayer and add a rule for get_u16: 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 Ida Domain. Nothing to install.
get_u16 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 get_u16 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 get_u16. 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.
get_u16 is provided by the Ida Domain MCP server (xxyyue/ida_domain_mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Ida Domain, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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74 Ida Domain tools catalogued and risk-classified — across an index of 43,000+ MCP servers.