List all registered webhook endpoints for your API key. The HMAC secret is not included for security.
AI agents call list_webhooks to retrieve information from QR for Agent 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 a list of webhook configurations associated with the API key. It performs data retrieval without modification, deletion, or execution of external operations. The classification as Read is appropriate for a listing/enumeration function that has minimal blast radius if misused by an AI agent—at worst, an attacker gains visibility into webhook endpoints but cannot modify them.
From the tool's definition Tool name 'list_webhooks' and description 'List all registered webhook endpoints' indicate a retrieval operation with no side effects. The description explicitly states the HMAC secret is not included, emphasizing read-only safe access.
Attacks that exploit this kind of access
List all registered webhook endpoints for your API key. The HMAC secret is not included for security. It is categorised as a Read tool in the QR for Agent MCP Server, which means it retrieves data without modifying state.
Register the QR for Agent 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 QR for Agent. 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 QR for Agent MCP server (qr-for-agent). 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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