gcp_logging_list_sinks
List logging sinks (exports)
This record as markdown: /tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-logging-list-sinks.md
What gcp_logging_list_sinks does on GCP MCP Server
AI agents call gcp_logging_list_sinks 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_logging_list_sinks is rated Low
This tool retrieves and enumerates logging sink configurations without creating, modifying, deleting, or executing any operations. It is a read-only informational query about existing log export destinations. The blast radius of misuse is minimal — an attacker gains only visibility into how logs are being routed, not the ability to alter logging behavior or access sensitive data through this call alone.
From the tool's definition Tool name contains 'list_' and description states 'List logging sinks (exports)' — a pure query/retrieval operation with no modification or execution of infrastructure.
Attacks that exploit this kind of access
The rule that runs gcp_logging_list_sinks 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_logging_list_sinks, this is the rule to start with:
gcp_logging_list_sinks 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_logging_list_sinks call is checked against it from then on.
Questions about gcp_logging_list_sinks
List logging sinks (exports). 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_logging_list_sinks: 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_logging_list_sinks 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_logging_list_sinks 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_logging_list_sinks. 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_logging_list_sinks 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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