Check database server health and connectivity with performance metrics
AI agents call mssql_health_check to retrieve information from Enhanced MCP MSSQL Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries health status and performance metrics—diagnostic reads with no side effects. It does not execute arbitrary code, modify data, delete anything, or move money. The server description emphasizes 'read-only access,' further supporting this classification.
From the tool's definition Tool name 'mssql_health_check' and description 'Check database server health and connectivity with performance metrics' indicate retrieval of monitoring/diagnostic data with no modification, creation, deletion, or execution of commands.
Attacks that exploit this kind of access
Check database server health and connectivity with performance metrics. It is categorised as a Read tool in the Enhanced MCP MSSQL Server MCP Server, which means it retrieves data without modifying state.
Register the Enhanced MCP MSSQL Server MCP server in PolicyLayer and add a rule for mssql_health_check: 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 Enhanced MCP MSSQL Server. Nothing to install.
mssql_health_check 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 mssql_health_check 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 mssql_health_check. 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.
mssql_health_check is provided by the Enhanced MCP MSSQL Server MCP server (michaelyuwh/mcp-mssql-connector). 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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