list_locales

List available locales for Faker-powered endpoints.

SERVERTinyFn SOURCEhttps://api.tinyfn.io/mcp/all/

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-tinyfn-tinyfn/list-locales.md

WHAT IT DOES

What list_locales does on TinyFn

AI agents call list_locales to retrieve information from TinyFn without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why list_locales is rated Low

This tool retrieves or queries a static list of available locales without side effects, mutations, or external operations. It is a pure read operation typical of informational endpoints. The severity is low because listing locales poses minimal risk even if accessed by an AI agent; the information is non-sensitive and non-destructive.

From the tool's definition Tool name is 'list_locales' and description states 'List available locales' - uses list/query semantics with no modification or execution implied.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs list_locales safely

PolicyLayer is an MCP gateway: it sits between your AI agents and TinyFn, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For list_locales, this is the rule to start with:

list_locales Allowed

list_locales is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_locales": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect TinyFn, apply this rule, and every list_locales call is checked against it from then on.

FAQ

Questions about list_locales

What does the list_locales tool do? +

List available locales for Faker-powered endpoints. It is categorised as a Read tool in the TinyFn MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_locales? +

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

What risk level is list_locales? +

list_locales is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit list_locales? +

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

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

list_locales is provided by the TinyFn MCP server (https://api.tinyfn.io/mcp/all/). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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