List available QR code templates
AI agents call list_qr_templates to retrieve information from Enhanced QR Code MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns information about available templates without creating, modifying, executing, or deleting anything. It is a straightforward data retrieval operation with no blast radius if misused by an AI agent—the worst outcome would be exposing the names of available templates.
From the tool's definition Tool name 'list_qr_templates' and description 'List available QR code templates' indicate a retrieval operation with no side effects. The word 'List' is explicitly a read operation.
Attacks that exploit this kind of access
List available QR code templates. It is categorised as a Read tool in the Enhanced QR Code MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Enhanced QR Code MCP Server MCP server in PolicyLayer and add a rule for list_qr_templates: 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 Enhanced QR Code MCP Server. Nothing to install.
list_qr_templates is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the list_qr_templates 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.
Set action: deny in the PolicyLayer policy for list_qr_templates. 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.
list_qr_templates is provided by the Enhanced QR Code MCP Server MCP server (myownipgit/mcp-server-qrcode-enhanced). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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