create_form · its-just-ui MCP Server MCP: Risk & Policy

WHAT IT DOES

What create_form does on its-just-ui MCP Server

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

WHY IT NEEDS A POLICY

Why create_form needs a policy

This tool creates new form component structures reversibly within a UI framework. It generates code/component definitions rather than executing arbitrary operations, modifying persistent data, or causing irreversible changes. The output is a form template that can be edited or deleted.

From the tool's definition Tool name 'create_form' and description 'Generate a form structure using its-just-ui form components' indicates creation of UI component definitions. The verb 'Generate' and context of a UI component library suggest the tool produces new form structures.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_form Rate-limited

create_form 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_form": {
      "limits": [
        {
          "counter": "create_form_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 its-just-ui MCP Server, so you can run agents against it safely.

FAQ

Questions about create_form

What does the create_form tool do? +

Generate a form structure using its-just-ui form components. It is categorised as a Write tool in the its-just-ui 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_form? +

Register the its-just-ui MCP Server MCP server in PolicyLayer and add a rule for create_form: 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 its-just-ui MCP Server. Nothing to install.

What risk level is create_form? +

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

Can I rate-limit create_form? +

Yes. Add a rate_limit block to the create_form 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_form completely? +

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

create_form is provided by the its-just-ui MCP Server MCP server (its-just-ui/its-just-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.