tag_key · Tolgee MCP: Risk & Policy

WHAT IT DOES

What tag_key does on Tolgee

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

WHY IT NEEDS A POLICY

Why tag_key needs a policy

This tool performs a reversible write operation—adding a tag to a localization key. Tags are metadata that can be modified, removed, or reassigned without destroying underlying translation data. The impact is limited to organizational metadata within a localization project. While it modifies state, the operation is not destructive, does not execute arbitrary code, and poses minimal security risk.

From the tool's definition Tool description: 'Add a tag to a localization key. Creates the tag if it doesn't exist.' The action is to add/create a tag, which modifies metadata associated with a key in a reversible manner.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

tag_key Rate-limited

tag_key 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": {
    "tag_key": {
      "limits": [
        {
          "counter": "tag_key_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 Tolgee, so you can run agents against it safely.

FAQ

Questions about tag_key

What does the tag_key tool do? +

Add a tag to a localization key. Creates the tag if it doesn't exist. It is categorised as a Write tool in the Tolgee MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on tag_key? +

Register the Tolgee MCP server in PolicyLayer and add a rule for tag_key: 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 Tolgee. Nothing to install.

What risk level is tag_key? +

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

Can I rate-limit tag_key? +

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

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

tag_key is provided by the Tolgee MCP server (ytarfa/tolgee-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.