validate_coupon

Validate a coupon code

SERVERinstantKOM MCP Server SOURCEinstantkom/mcp-server

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/instantkom-mcp-server/validate-coupon.md

WHAT IT DOES

What validate_coupon does on instantKOM MCP Server

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

RISK

Why validate_coupon is rated Low

The tool performs validation, which is a read-only operation that checks the validity of a coupon code. It does not create, modify, delete, or apply any financial transactions. Validation is a pure information retrieval action with no side effects on data or state.

From the tool's definition Tool name 'validate_coupon' and description 'Validate a coupon code' indicate a query/check operation that retrieves or verifies coupon information without modifying state.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs validate_coupon safely

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

validate_coupon Allowed

validate_coupon 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": {
    "validate_coupon": {}
  }
}

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

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

FAQ

Questions about validate_coupon

What does the validate_coupon tool do? +

Validate a coupon code. It is categorised as a Read tool in the instantKOM MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on validate_coupon? +

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

What risk level is validate_coupon? +

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

Can I rate-limit validate_coupon? +

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

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

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

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