find_iokit_classes

THE RISK

Low Risk

Why find_iokit_classes needs a policy

This tool performs static analysis of IOKit kernel driver interfaces by reading binary metadata (class hierarchies, virtual method tables, user client interfaces). It retrieves and examines data structures within a binary without modifying code, executing arbitrary operations, or deleting anything. The operations are read-only reconnaissance typical of reverse engineering analysis tools.

From the tool's definition Tool name 'find_iokit_classes' and description 'Find and analyze IOKit class hierarchies, vtables, and user client interfaces' indicate retrieval and analysis of existing binary structures without modification or execution.

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

POLICY

How to control find_iokit_classes

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

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "find_iokit_classes": {}
  }
}

find_iokit_classes is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

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

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Kawaiidra MCP tools

Destructive cache_clear Clear cached analysis results. Can clear all cache or filter by binary/project. Destructive clear_comments Clear all comments (EOL, PRE, POST, PLATE) within a function Destructive delete_data_type Delete a user-defined data type from the binary. Destructive delete_function Delete a function by address or name. Removes the function definition but not the underlyi Destructive delete_label Delete a label/symbol at a specific address. Destructive remove_struct_field Remove a field from a structure by index. Execute run_script Execute arbitrary Jython code in the Ghidra scripting environment. Has access to currentPr Execute analyze_binary Import and analyze a binary file with Ghidra. Supports PE, ELF, Mach-O, and raw formats.

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about find_iokit_classes

What does the find_iokit_classes tool do? +

Find and analyze IOKit class hierarchies, vtables, and user client interfaces. It is categorised as a Read tool in the Kawaiidra MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on find_iokit_classes? +

Register the Kawaiidra MCP server in PolicyLayer and add a rule for find_iokit_classes: 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 Kawaiidra MCP. Nothing to install.

What risk level is find_iokit_classes? +

find_iokit_classes is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit find_iokit_classes? +

Yes. Add a rate_limit block to the find_iokit_classes 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 find_iokit_classes completely? +

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

find_iokit_classes is provided by the Kawaiidra MCP server (wagonbomb/kawaiidra-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Kawaiidra MCP tool call.

Start from Kawaiidra MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →