list_slis
AI agents call list_slis 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.
SLIs (Service Level Indicators) are observability metrics. A 'list_slis' operation retrieves or enumerates SLI data without modifying, deleting, or executing external operations. This aligns with the Read category. Confidence is reduced to 0.7 due to the empty description, but the naming convention and server context provide reasonable assurance.
From the tool's definition Tool name 'list_slis' indicates a list operation; empty description limits confidence. Context from sibling tools (get_service_detail, get_slo, list_monitored_services, query_sampled_traces, query_service_metrics) suggests this server provides read-only…
Attacks that exploit this kind of access
list_slis. 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_slis: 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_slis 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_slis 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_slis. 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_slis 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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