AI agents call lexq_groups_get to retrieve information from LexQ without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves data (a policy group) by identifier without any side effects, reversible modifications, or execution of external operations. It matches the Read category definition: 'retrieves or queries data; no side effects (search, list, get, fetch).' The severity is low because unauthorized access to a single policy group configuration poses minimal blast radius in the context of a business rules management…
From the tool's definition Tool name 'lexq_groups_get' and description 'Get a single policy group by ID' indicate a retrieval operation with no modification, deletion, or execution of business logic.
Attacks that exploit this kind of access
Get a single policy group by ID. It is categorised as a Read tool in the LexQ MCP Server, which means it retrieves data without modifying state.
Register the LexQ MCP server in PolicyLayer and add a rule for lexq_groups_get: 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 LexQ. Nothing to install.
lexq_groups_get 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 lexq_groups_get 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 lexq_groups_get. 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.
lexq_groups_get is provided by the LexQ MCP server (lexq-io/lexq-cli). 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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