AI agents call list_sites to retrieve information from Pulspeed 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 metadata about monitored websites. It performs a straightforward listing operation that retrieves existing data without creating, modifying, deleting, or executing any actions. The blast radius of misuse is minimal—an agent could learn which sites are monitored, but cannot alter monitoring configuration, trigger scans, or affect any systems. This is a classic Read operation.
From the tool's definition Tool description states it 'List all websites being monitored' and 'Returns site names, URLs, scan frequency, and strategy' — purely informational retrieval with no modification or side effects.
Attacks that exploit this kind of access
List all websites being monitored by Pulspeed. Returns site names, URLs, scan frequency, and strategy. It is categorised as a Read tool in the Pulspeed MCP Server, which means it retrieves data without modifying state.
Register the Pulspeed MCP server in PolicyLayer and add a rule for list_sites: 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 Pulspeed. Nothing to install.
list_sites 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_sites 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_sites. 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_sites is provided by the Pulspeed MCP server (pulspeed/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
list_sites is one line of Pulspeed's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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