Validate a SQL query for security and syntax without executing it
AI agents call mssql_validate_query 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 performs static analysis and validation of SQL queries without executing them or modifying any data. It has no side effects and does not retrieve data from the database. The explicit exclusion of execution means it cannot cause destructive, financial, or write operations.
From the tool's definition Tool name 'mssql_validate_query' and description 'Validate a SQL query for security and syntax without executing it' indicate query validation only, with explicit statement that execution does not occur.
Attacks that exploit this kind of access
Validate a SQL query for security and syntax without executing it. 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_validate_query: 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_validate_query 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_validate_query 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_validate_query. 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_validate_query 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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