测试数据库连接是否正常
AI agents call test_connection to retrieve information from MySQL 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 health check or diagnostic test of the database connection. It retrieves connection status information but does not query data, execute code, modify data, or delete anything. It is a non-invasive read operation with minimal blast radius if misused by an AI agent.
From the tool's definition Tool name 'test_connection' and description '测试数据库连接是否正常' (test if database connection is normal) indicate a read-only diagnostic operation that verifies connectivity without modifying or executing queries against the database.
Attacks that exploit this kind of access
测试数据库连接是否正常. It is categorised as a Read tool in the MySQL MCP Server MCP Server, which means it retrieves data without modifying state.
Register the MySQL MCP Server MCP server in PolicyLayer and add a rule for test_connection: 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 MySQL MCP Server. Nothing to install.
test_connection 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 test_connection 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 test_connection. 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.
test_connection is provided by the MySQL MCP Server MCP server (microsnow/mysql-mcp-server). 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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