AI agents call get_icon_svg to retrieve information from Nucleo without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a simple query/fetch operation against a Nucleo icon database to return SVG source code. There are no destructive, financial, or execute-like operations involved—it merely retrieves and returns existing data. The blast radius of misuse is minimal; an agent could fetch SVG data, but this poses no security risk to the system or data integrity. Classified as Read with low severity.
From the tool's definition Tool retrieves 'raw SVG source' of an icon by ID, which is a data retrieval operation with no side effects. Description explicitly indicates it 'Get[s]' data without modification.
Attacks that exploit this kind of access
Get the raw SVG source of a Nucleo icon by ID. It is categorised as a Read tool in the Nucleo MCP Server, which means it retrieves data without modifying state.
Register the Nucleo MCP server in PolicyLayer and add a rule for get_icon_svg: 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 Nucleo. Nothing to install.
get_icon_svg 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 get_icon_svg 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 get_icon_svg. 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.
get_icon_svg is provided by the Nucleo MCP server (julianallchin/nucleo-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 →