imhex_list_files

THE RISK

Low Risk

Why imhex_list_files needs a policy

This tool performs a simple enumeration/listing of files already open in the ImHex application. It has no side effects, does not execute code, does not modify data, and does not delete anything.

From the tool's definition Tool name 'imhex_list_files' combined with description 'List all currently open files in ImHex' indicates a query operation that retrieves information about open files without modifying, executing, or deleting anything.

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

POLICY

How to control imhex_list_files

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

policy.json

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

imhex_list_files 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 ImHex MCP Integration — 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 ImHex MCP Integration tools

Destructive imhex_remove_bookmark Remove a bookmark by its ID Execute imhex_open_file Open a file in ImHex for analysis Write imhex_bookmark_add Add a bookmark to a specific location in the file Write imhex_close_file Close a specific file/provider in ImHex Write imhex_export_data Export a region of data to a file in various formats (binary, hex, or base64) Write imhex_export_search_results Export search results to CSV or JSON format with optional context bytes Write imhex_set_pattern_code Set pattern language code in ImHex for binary data parsing Write imhex_switch_file Switch the active file/provider in ImHex

All 27 ImHex MCP Integration tools →

Read tools on other servers

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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 imhex_list_files

What does the imhex_list_files tool do? +

List all currently open files in ImHex. It is categorised as a Read tool in the ImHex MCP Integration MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on imhex_list_files? +

Register the ImHex MCP Integration MCP server in PolicyLayer and add a rule for imhex_list_files: 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 ImHex MCP Integration. Nothing to install.

What risk level is imhex_list_files? +

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

Can I rate-limit imhex_list_files? +

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

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

imhex_list_files is provided by the ImHex MCP Integration MCP server (jmpnop/imhexmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every ImHex MCP Integration tool call.

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

CHECK YOUR STACK →