check-config

Check if a config key exists and get typed values

SERVERFrontmcp SOURCEagentfront/frontmcp

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/frontmcp/check-config.md

WHAT IT DOES

What check-config does on Frontmcp

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

RISK

Why check-config is rated Low

This tool retrieves configuration data without altering state. It is a read-only operation that queries existing configuration. The blast radius of misuse is minimal—an agent could learn config values but cannot modify them, delete them, or trigger external operations. Classified as Read with low severity.

From the tool's definition Tool is described as checking if a config key exists and getting typed values—a pure query operation with no side effects or modifications.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs check-config safely

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

check-config Allowed

check-config 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": {
    "check-config": {}
  }
}

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

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

FAQ

Questions about check-config

What does the check-config tool do? +

Check if a config key exists and get typed values. It is categorised as a Read tool in the Frontmcp MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on check-config? +

Register the Front MCP server in PolicyLayer and add a rule for check-config: 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 Frontmcp. Nothing to install.

What risk level is check-config? +

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

Can I rate-limit check-config? +

Yes. Add a rate_limit block to the check-config 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 check-config completely? +

Set action: deny in the PolicyLayer policy for check-config. 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 check-config? +

check-config is provided by the Front MCP server (agentfront/frontmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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