update_qr_code

Update an existing QR code

SERVERinstantKOM MCP Server SOURCEinstantkom/mcp-server

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/instantkom-mcp-server/update-qr-code.md

WHAT IT DOES

What update_qr_code does on instantKOM MCP Server

AI agents use update_qr_code to create or update resources in instantKOM MCP Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your instantKOM MCP Server environment.

RISK

Why update_qr_code is rated Medium

This tool modifies existing QR code data within the instantKOM platform. While the change is reversible and does not involve deletion or destruction, it alters platform state. The blast radius is medium because unintended QR code modifications could redirect users to wrong endpoints or disrupt intended messaging flows, but the impact is limited to a single QR code resource and can be corrected.

From the tool's definition Tool name 'update_qr_code' and description 'Update an existing QR code' indicate modification of existing data. The action is reversible (QR codes can be updated again or reverted).

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs update_qr_code 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 update_qr_code, this is the rule to start with:

update_qr_code Rate-limited

update_qr_code stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "update_qr_code": {
      "limits": [
        {
          "counter": "update_qr_code_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT 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 update_qr_code call is checked against it from then on.

FAQ

Questions about update_qr_code

What does the update_qr_code tool do? +

Update an existing QR code. It is categorised as a Write tool in the instantKOM MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on update_qr_code? +

Register the instantKOM MCP Server MCP server in PolicyLayer and add a rule for update_qr_code: 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 update_qr_code? +

update_qr_code is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit update_qr_code? +

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

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

update_qr_code 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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