openapi_generate_types

Generate TypeScript types from OpenAPI

SERVERPlugin Hub SOURCE@barnburner121/plugin-hub-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/barnburner121-plugin-hub-mcp/openapi-generate-types.md

WHAT IT DOES

What openapi_generate_types does on Plugin Hub

AI agents use openapi_generate_types to create or update resources in Plugin Hub, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Plugin Hub environment.

RISK

Why openapi_generate_types is rated Medium

An AI agent can call openapi_generate_types faster than any human can review: one bad instruction and it creates or modifies resources in Plugin Hub by the hundred, each call as confident as the last.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs openapi_generate_types safely

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

openapi_generate_types Rate-limited

openapi_generate_types 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": {
    "openapi_generate_types": {
      "limits": [
        {
          "counter": "openapi_generate_types_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Plugin Hub, apply this rule, and every openapi_generate_types call is checked against it from then on.

FAQ

Questions about openapi_generate_types

What does the openapi_generate_types tool do? +

Generate TypeScript types from OpenAPI. It is categorised as a Write tool in the Plugin Hub MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on openapi_generate_types? +

Register the Plugin Hub MCP server in PolicyLayer and add a rule for openapi_generate_types: 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 Plugin Hub. Nothing to install.

What risk level is openapi_generate_types? +

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

Can I rate-limit openapi_generate_types? +

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

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

openapi_generate_types is provided by the Plugin Hub MCP server (@barnburner121/plugin-hub-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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