add_language · POEditor MCP Server MCP: Risk & Policy

WHAT IT DOES

What add_language does on POEditor MCP Server

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

WHY IT NEEDS A POLICY

Why add_language needs a policy

The tool creates new language entries in a POEditor translation project, which is a reversible Write operation. It has medium severity because misconfiguration could add unwanted languages to the project, but the action is reversible (languages can be removed). It does not execute arbitrary code, delete data permanently, or involve financial transactions.

From the tool's definition Tool name is 'add_language' and description states 'Add a new language to the project', which creates a new language entry in the translation management system. This is a reversible modification operation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

add_language Rate-limited

add_language 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": {
    "add_language": {
      "limits": [
        {
          "counter": "add_language_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 POEditor MCP Server, so you can run agents against it safely.

FAQ

Questions about add_language

What does the add_language tool do? +

Add a new language to the project. Provide the language code (e.g.,. It is categorised as a Write tool in the POEditor 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 add_language? +

Register the POEditor MCP Server MCP server in PolicyLayer and add a rule for add_language: 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 POEditor MCP Server. Nothing to install.

What risk level is add_language? +

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

Can I rate-limit add_language? +

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

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

add_language is provided by the POEditor MCP Server MCP server (ryan-shaw/poeditor-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.