Run a read-only MSSQL query (SELECT/WITH). Returns columns, rowCount, and sliced rows for preview.
AI agents call query_mssql to retrieve information from LINE Bot MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool strictly retrieves data via SELECT queries with no side effects or ability to modify, delete, or execute arbitrary operations. It presents minimal risk as it cannot alter the database state or execute privileged operations. The 'read-only' constraint and explicit mention of SELECT/WITH syntax confirms it belongs in the Read category with low severity.
From the tool's definition Tool description explicitly states 'read-only MSSQL query (SELECT/WITH)' and 'Returns columns, rowCount, and sliced rows for preview.' The tool is constrained to SELECT and WITH operations, which retrieve data without modification.
Attacks that exploit this kind of access
Run a read-only MSSQL query (SELECT/WITH). Returns columns, rowCount, and sliced rows for preview. It is categorised as a Read tool in the LINE Bot MCP Server MCP Server, which means it retrieves data without modifying state.
Register the LINE Bot MCP Server MCP server in PolicyLayer and add a rule for query_mssql: 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 LINE Bot MCP Server. Nothing to install.
query_mssql 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 query_mssql 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 query_mssql. 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.
query_mssql is provided by the LINE Bot MCP Server MCP server (tndfame/mcp_management). 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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