create_list_variable · Code Analysis MCP Server MCP

WHAT IT DOES

What create_list_variable does on Code Analysis MCP Server

AI agents use create_list_variable to create or update resources in Code Analysis MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Code Analysis MCP Server environment.

WHY IT NEEDS A POLICY

Why create_list_variable needs a policy

This tool creates new list variables that appear to store configuration data (audit exemptions and similar rules). Creating audit exemption rules could have security implications if misused by an agent to bypass security controls, but the operation is reversible (can be deleted via sibling tool delete_list_variable).

From the tool's definition Tool name is 'create_list_variable' and description indicates it 'creates list variables (such as audit exemption rules etc.)'. The word 'create' and the function of instantiating new data structures/configurations is characteristic of Write operations.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_list_variable Rate-limited

create_list_variable stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "create_list_variable": {
      "limits": [
        {
          "counter": "create_list_variable_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Code Analysis MCP Server, so you can run agents against it safely.

FAQ

Questions about create_list_variable

What does the create_list_variable tool do? +

创建列表变量（如审计豁免规则等）. It is categorised as a Write tool in the Code Analysis MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_list_variable? +

Register the Code Analysis MCP Server MCP server in PolicyLayer and add a rule for create_list_variable: 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 Code Analysis MCP Server. Nothing to install.

What risk level is create_list_variable? +

create_list_variable is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit create_list_variable? +

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

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

create_list_variable is provided by the Code Analysis MCP Server MCP server (zeocax/code-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.