callback_list

A read tool on the Zebbern Kali MCP server.

SERVERZebbern Kali MCP SOURCEzebbern/zebbern-kali-mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/zebbern-zebbern-kali-mcp/callback-list.md

WHAT IT DOES

What callback_list does on Zebbern Kali MCP

AI agents call callback_list to retrieve information from Zebbern Kali MCP without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why callback_list is rated Low

Although the description is empty, the name and surrounding context (Kali Linux penetration testing toolkit) indicate this tool retrieves callback information rather than executing commands or modifying state. However, confidence is reduced due to lack of explicit documentation.

From the tool's definition Tool name 'callback_list' combined with sibling tools that are offensive security utilities (asreproast, kerberoast, ldap_enum, password_spray, psexec, secretsdump, smb_enum, wmiexec) suggests this queries or enumerates callback infrastructure, likely…

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs callback_list safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Zebbern Kali MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For callback_list, this is the rule to start with:

callback_list Allowed

callback_list is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

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

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Zebbern Kali MCP, apply this rule, and every callback_list call is checked against it from then on.

FAQ

Questions about callback_list

What does the callback_list tool do? +

callback_list is a read tool on the Zebbern Kali MCP server. It is categorised as a Read tool in the Zebbern Kali MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on callback_list? +

Register the Zebbern Kali MCP server in PolicyLayer and add a rule for callback_list: 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 Zebbern Kali MCP. Nothing to install.

What risk level is callback_list? +

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

Can I rate-limit callback_list? +

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

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

callback_list is provided by the Zebbern Kali MCP server (zebbern/zebbern-kali-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on Zebbern Kali, and thousands of servers like it.

This server

All 133 Zebbern Kali tools →

Across the catalogue

aiva_list_affiliates on AIVA MCP Server →list_circuits on 0gzk →list_agents on 0rca Dojo MCP Server → The MCP Attack Database →

Guides

Roll out MCP under one policy →Data exfiltration →MCP token cost →