tms_upload_termbase · Phrase MCP: Risk & Policy

WHAT IT DOES

What tms_upload_termbase does on Phrase

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

WHY IT NEEDS A POLICY

Why tms_upload_termbase needs a policy

This tool creates or modifies data within the Phrase TMS termbase by importing terminology. It is a Write operation rather than Destructive because importing terms is reversible—terms can be subsequently edited, deleted, or replaced.

From the tool's definition Tool description states "Upload/Import terms into a Phrase TMS termbase". The verbs "Upload" and "Import" indicate creation/modification of data in the termbase.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

tms_upload_termbase Rate-limited

tms_upload_termbase 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": {
    "tms_upload_termbase": {
      "limits": [
        {
          "counter": "tms_upload_termbase_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 Phrase, so you can run agents against it safely.

FAQ

Questions about tms_upload_termbase

What does the tms_upload_termbase tool do? +

Upload/Import terms into a Phrase TMS termbase. Provide either file_path (host filesystem path, for local MCP server use) or file_content + file_name (base64-encoded file bytes, for Claude Desktop uploaded files). It is categorised as a Write tool in the Phrase MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on tms_upload_termbase? +

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

What risk level is tms_upload_termbase? +

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

Can I rate-limit tms_upload_termbase? +

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

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

tms_upload_termbase is provided by the Phrase MCP server (phrase-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.