AI agents call list_webhooks to retrieve information from Seven 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 existing webhook configurations without creating, modifying, or deleting any data. It is a read-only operation that retrieves information about webhooks. The low severity reflects minimal risk: exposure of webhook configurations could inform an attacker about infrastructure, but does not directly enable destructive or financial actions.
From the tool's definition Tool name is 'list_webhooks' and description states 'List all registered webhooks' — a retrieval operation with no modification or side effects.
Attacks that exploit this kind of access
List all registered webhooks. It is categorised as a Read tool in the Seven MCP Server, which means it retrieves data without modifying state.
Register the Seven MCP server in PolicyLayer and add a rule for list_webhooks: 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 Seven. Nothing to install.
list_webhooks 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_webhooks 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_webhooks. 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_webhooks is provided by the Seven MCP server (seven-io/seven-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.
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