按名称模式检索表（支持 SQL LIKE 语法）
AI agents call searchTables to retrieve information from SQL MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a metadata search/query operation that retrieves table names matching a pattern. It has no side effects, does not modify data, and does not execute arbitrary code. The read-only nature of the SQL MCP Server and the metadata exploration purpose clearly place this in the Read category with low severity due to limited blast radius—an AI agent querying table names poses minimal risk.
From the tool's definition Tool name 'searchTables' and description indicating retrieval of tables by name pattern using SQL LIKE syntax. The server description explicitly states 'read-only interaction' and 'database metadata exploration'.
Attacks that exploit this kind of access
按名称模式检索表（支持 SQL LIKE 语法）. It is categorised as a Read tool in the SQL MCP Server MCP Server, which means it retrieves data without modifying state.
Register the SQL MCP Server MCP server in PolicyLayer and add a rule for searchTables: 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 SQL MCP Server. Nothing to install.
searchTables 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 searchTables 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 searchTables. 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.
searchTables is provided by the SQL MCP Server MCP server (polarisxb/sql-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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