generate_schema · MCP-Upstage-Server MCP: Risk & Policy

WHAT IT DOES

What generate_schema does on MCP-Upstage-Server

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

WHY IT NEEDS A POLICY

Why generate_schema needs a policy

An AI agent can call generate_schema faster than any human can review — one bad instruction and it creates or modifies resources in MCP-Upstage-Server by the hundred, each call as confident as the last.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

generate_schema Rate-limited

generate_schema 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": {
    "generate_schema": {
      "limits": [
        {
          "counter": "generate_schema_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 MCP-Upstage-Server, so you can run agents against it safely.

FAQ

Questions about generate_schema

What does the generate_schema tool do? +

Generate an extraction schema for a document using Upstage AI. It is categorised as a Write tool in the MCP-Upstage-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 generate_schema? +

Register the MCP-Upstage-Server MCP server in PolicyLayer and add a rule for generate_schema: 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 MCP-Upstage-Server. Nothing to install.

What risk level is generate_schema? +

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

Can I rate-limit generate_schema? +

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

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

generate_schema is provided by the MCP-Upstage-Server MCP server (upstageai/mcp-upstage-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.