add_locale · Paraglide MCP: Risk & Policy

WHAT IT DOES

What add_locale does on Paraglide

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

WHY IT NEEDS A POLICY

Why add_locale needs a policy

This tool creates a new locale entry in project settings, which is a reversible write operation. It modifies project configuration but does not delete data or execute arbitrary code. Severity is medium because misconfiguration of locales could disrupt translation workflows, but the operation itself is straightforward and can be undone via remove_locale (a sibling tool).

From the tool's definition Tool name is 'add_locale' and description states it will 'Add a locale to the project settings' — a modification operation that creates/alters configuration state.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

add_locale Rate-limited

add_locale 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_locale": {
      "limits": [
        {
          "counter": "add_locale_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 Paraglide, so you can run agents against it safely.

FAQ

Questions about add_locale

What does the add_locale tool do? +

Add a locale to the project settings so it can be translated into. For. It is categorised as a Write tool in the Paraglide 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_locale? +

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

What risk level is add_locale? +

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

Can I rate-limit add_locale? +

Yes. Add a rate_limit block to the add_locale 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_locale completely? +

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

add_locale is provided by the Paraglide MCP server (weshaze/paraglide-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.