List all QR code files in a directory with metadata
AI agents call list_generated_qrcodes 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 retrieves and queries existing QR code file metadata without creating, modifying, deleting, or executing any operations. It has no side effects and represents a standard read operation.
From the tool's definition Tool name 'list_generated_qrcodes' and description 'List all QR code files in a directory with metadata' indicate a retrieval operation with no side effects. The verb 'list' is a read-only query operation.
Attacks that exploit this kind of access
List all QR code files in a directory with metadata. 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_generated_qrcodes: 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_generated_qrcodes 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_generated_qrcodes 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_generated_qrcodes. 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_generated_qrcodes is provided by the Enhanced QR Code MCP Server MCP server (myownipgit/enhanced-qrcode-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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