throw-validation-error

Throws an InvalidInputError if validation fails

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/throw-validation-error.md

WHAT IT DOES

What throw-validation-error does on Frontmcp

AI agents call throw-validation-error 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 throw-validation-error is rated Low

Even though throw-validation-error only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs throw-validation-error 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 throw-validation-error, this is the rule to start with:

throw-validation-error Allowed

throw-validation-error 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": {
    "throw-validation-error": {}
  }
}

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 throw-validation-error call is checked against it from then on.

FAQ

Questions about throw-validation-error

What does the throw-validation-error tool do? +

Throws an InvalidInputError if validation fails. 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 throw-validation-error? +

Register the Front MCP server in PolicyLayer and add a rule for throw-validation-error: 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 throw-validation-error? +

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

Can I rate-limit throw-validation-error? +

Yes. Add a rate_limit block to the throw-validation-error 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 throw-validation-error completely? +

Set action: deny in the PolicyLayer policy for throw-validation-error. 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 throw-validation-error? +

throw-validation-error 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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