AI agents call mcp_sp_structure to retrieve information from Mcpql without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves metadata about stored procedure definitions—parameters, dependencies, and source code—without executing the procedure or modifying database state. It is a read-only analysis tool. No data is created, deleted, or executed. Severity is low because inspecting procedure metadata poses minimal risk even if called by an agent without constraints.
From the tool's definition Tool performs structural analysis of stored procedures: 'Analyze SQL Server stored procedure structure including parameters, dependencies, and source code'. The verbs 'analyze' and 'dependencies' indicate read-only inspection.
Attacks that exploit this kind of access
Analyze SQL Server stored procedure structure including parameters, dependencies, and source code. It is categorised as a Read tool in the Mcpql MCP Server, which means it retrieves data without modifying state.
Register the Mcpql MCP server in PolicyLayer and add a rule for mcp_sp_structure: 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 Mcpql. Nothing to install.
mcp_sp_structure 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_sp_structure 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_sp_structure. 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_sp_structure is provided by the Mcpql MCP server (mcpql). 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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