discover_mock_servers

THE RISK

Low Risk

Why discover_mock_servers needs a policy

This tool only reads/queries information about running servers and configurations. It has no side effects, does not modify state, and purely retrieves discovery information about existing mock servers.

From the tool's definition Discover running MockLoop servers and generated mock configurations

Documented attack patterns abuse exactly the kind of access discover_mock_servers gives an agent:

POLICY

How to control discover_mock_servers

PolicyLayer is an MCP gateway — it sits between your AI agents and MockLoop MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for discover_mock_servers:

policy.json

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

discover_mock_servers is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register MockLoop MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More MockLoop MCP Server tools

Execute deploy_scenario Deploys scenario to MockLoop server. Execute execute_test_plan Combines scenario generation and deployment in one operation. Execute run_load_test Executes load testing with configurable parameters. Execute run_security_test Executes security testing scenarios for vulnerability assessment. Execute run_test_iteration Executes a single test iteration with monitoring. Execute generate_mock_api Generates a FastAPI mock server from an API specification (e.g., OpenAPI). Execute schedule_test_suite Schedules automated test suite execution. Execute switch_scenario Switches active scenario on a server.

All 30 MockLoop MCP Server tools →

Read tools on other servers

M-Team MCP Server get_torrent_detail YouTube MCP Server search_channel Android Forensics ADB MCP Server parse_browser_history 0xarchive web3_challenge

Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about discover_mock_servers

What does the discover_mock_servers tool do? +

Discover running MockLoop servers and generated mock configurations. It is categorised as a Read tool in the MockLoop MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on discover_mock_servers? +

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

What risk level is discover_mock_servers? +

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

Can I rate-limit discover_mock_servers? +

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

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

discover_mock_servers is provided by the MockLoop MCP Server MCP server (mockloop/mockloop-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every MockLoop MCP Server tool call.

Start from MockLoop MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →