list_monitored_services
AI agents call list_monitored_services to retrieve information from AWS Application Signals MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool lists monitored services, which is a retrieval operation with no side effects. The name pattern 'list_*' and the read-only monitoring context of the server confirm this is a Read category tool. Confidence is high despite empty description due to strong naming convention and consistent server purpose. Severity is low as it only retrieves metadata about services without affecting systems or data.
From the tool's definition Tool name 'list_monitored_services' with 'list' prefix; server context indicates monitoring and querying AWS Application Signals (no modification, deletion, or execution of external operations); sibling tools include 'get_service_detail',…
Attacks that exploit this kind of access
list_monitored_services. It is categorised as a Read tool in the AWS Application Signals MCP Server MCP Server, which means it retrieves data without modifying state.
Register the AWS Application Signals MCP Server MCP server in PolicyLayer and add a rule for list_monitored_services: 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 AWS Application Signals MCP Server. Nothing to install.
list_monitored_services 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_monitored_services 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_monitored_services. 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_monitored_services is provided by the AWS Application Signals MCP Server MCP server (mxiamxia/appsignals-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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