myob_entity_prepare_create · MYOB Codex MCP: Risk & Policy

WHAT IT DOES

What myob_entity_prepare_create does on MYOB Codex MCP

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

WHY IT NEEDS A POLICY

Why myob_entity_prepare_create needs a policy

This tool creates or modifies data (entity creation) but requires explicit approval before commitment, reducing immediate risk. It falls under Write category as it prepares reversible data creation.

From the tool's definition Tool name contains 'prepare_create' and description states 'Prepare create for a supported entity'. The server description notes 'mutating actions that require explicit approval before commit', indicating this tool prepares but does not execute write…

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

myob_entity_prepare_create Rate-limited

myob_entity_prepare_create 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": {
    "myob_entity_prepare_create": {
      "limits": [
        {
          "counter": "myob_entity_prepare_create_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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Instant setup, no code required.

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

FAQ

Questions about myob_entity_prepare_create

What does the myob_entity_prepare_create tool do? +

Prepare create for a supported entity using the endpoint registry. It is categorised as a Write tool in the MYOB Codex MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on myob_entity_prepare_create? +

Register the MYOB Codex MCP server in PolicyLayer and add a rule for myob_entity_prepare_create: 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 MYOB Codex MCP. Nothing to install.

What risk level is myob_entity_prepare_create? +

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

Can I rate-limit myob_entity_prepare_create? +

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

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

myob_entity_prepare_create is provided by the MYOB Codex MCP server (jaeko44/myob-codex-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.