Check the MCP server's status and current operational mode.
AI agents call mcp_server_status to retrieve information from Tensorus MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a read-only diagnostic check of the server's operational state. It retrieves status information and returns it to the caller with no capability to modify data, execute arbitrary operations, delete resources, or trigger financial transactions. The minimal blast radius (only exposing system state information) and passive nature classify it as Read with low severity.
From the tool's definition Tool name 'mcp_server_status' and description 'Check the MCP server's status and current operational mode' indicate a query operation that retrieves status information without modifying, executing code, or causing side effects.
Attacks that exploit this kind of access
Check the MCP server's status and current operational mode. It is categorised as a Read tool in the Tensorus MCP MCP Server, which means it retrieves data without modifying state.
Register the Tensorus MCP server in PolicyLayer and add a rule for mcp_server_status: 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 Tensorus MCP. Nothing to install.
mcp_server_status 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 mcp_server_status 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 mcp_server_status. 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.
mcp_server_status is provided by the Tensorus MCP server (tensorus/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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