gcp_monitoring_list_time_series
Query Cloud Monitoring time series data
This record as markdown: /tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-monitoring-list-time-series.md
What gcp_monitoring_list_time_series does on GCP MCP Server
AI agents call gcp_monitoring_list_time_series to retrieve information from GCP MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why gcp_monitoring_list_time_series is rated Low
This tool retrieves monitoring metrics and time series data from Cloud Monitoring. The 'list' verb and 'query' action are read-only operations that do not modify infrastructure, execute code, delete data, or commit financial transactions. The blast radius of misuse is limited to information disclosure of monitoring data, which typically contains non-sensitive operational metrics.
From the tool's definition Tool name includes 'list' and description states 'Query Cloud Monitoring time series data' — both indicate data retrieval with no modification or side effects.
Attacks that exploit this kind of access
The rule that runs gcp_monitoring_list_time_series safely
PolicyLayer is an MCP gateway: it sits between your AI agents and GCP MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For gcp_monitoring_list_time_series, this is the rule to start with:
gcp_monitoring_list_time_series is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect GCP MCP Server, apply this rule, and every gcp_monitoring_list_time_series call is checked against it from then on.
Questions about gcp_monitoring_list_time_series
Query Cloud Monitoring time series data. It is categorised as a Read tool in the GCP MCP Server MCP Server, which means it retrieves data without modifying state.
Register the GCP MCP Server MCP server in PolicyLayer and add a rule for gcp_monitoring_list_time_series: 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 GCP MCP Server. Nothing to install.
gcp_monitoring_list_time_series 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 gcp_monitoring_list_time_series 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 gcp_monitoring_list_time_series. 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.
gcp_monitoring_list_time_series is provided by the GCP MCP Server MCP server (ahmedselimmansor-ctrl/gcp_mcp_server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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