List QR style presets and defaults (GET /qr/styles).
AI agents call list_qr_styles to retrieve information from QR Forge 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 QR code style presets. It performs a read-only operation (GET request) that has no capability to modify, delete, execute, or create resources. The blast radius of misuse is minimal — an AI agent can only retrieve style information, which poses no security risk.
From the tool's definition Tool description explicitly states 'List QR style presets and defaults (GET /qr/styles)' — a GET request that retrieves data with no side effects.
Attacks that exploit this kind of access
List QR style presets and defaults (GET /qr/styles). It is categorised as a Read tool in the QR Forge MCP server MCP Server, which means it retrieves data without modifying state.
Register the QR Forge MCP server MCP server in PolicyLayer and add a rule for list_qr_styles: 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 QR Forge MCP server. Nothing to install.
list_qr_styles 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_styles 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_styles. 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_styles is provided by the QR Forge MCP server MCP server (jkolarov/qrforge-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.
Teams ship this data inside their own products. See what a licence covers →