AI agents call lexq_webhook_subscriptions_list 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 is a read-only operation that retrieves information about webhook subscriptions. It has no side effects, does not modify data, and does not execute external actions. The low severity reflects that exposure of this tool to an AI agent would only allow querying subscription metadata, with minimal blast radius unless the information itself is sensitive business intelligence.
From the tool's definition Tool name contains 'list' and description states 'List platform event webhook subscriptions' — retrieves subscription data with no modification capability. It queries existing webhook subscriptions that receive notifications about deployment events.
Attacks that exploit this kind of access
List platform event webhook subscriptions. These receive deployment lifecycle notifications (publish, deploy, rollback, undeploy). 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_webhook_subscriptions_list: 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_webhook_subscriptions_list 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_webhook_subscriptions_list 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_webhook_subscriptions_list. 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_webhook_subscriptions_list 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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