Get popular labels by node degree
AI agents call get_popular_labels to retrieve information from LightRAG 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 read-only information (popular labels ranked by node degree) from an existing knowledge graph. It has no side effects, does not modify data, and does not execute code or trigger external operations. The operation is purely informational and safe for an AI agent to call.
From the tool's definition Tool name is 'get_popular_labels' and description states 'Get popular labels by node degree' — a query operation that retrieves aggregate statistics from the knowledge graph without modifying or executing any operations.
Attacks that exploit this kind of access
Get popular labels by node degree. It is categorised as a Read tool in the LightRAG MCP Server MCP Server, which means it retrieves data without modifying state.
Register the LightRAG MCP Server MCP server in PolicyLayer and add a rule for get_popular_labels: 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 LightRAG MCP Server. Nothing to install.
get_popular_labels 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_popular_labels 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_popular_labels. 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_popular_labels is provided by the LightRAG MCP Server MCP server (lalitsuryan/lightragmcp). 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.
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