获取数据库 schema（Markdown）。默认返回所有表的摘要；
AI agents call get_schema to retrieve information from MCP Database Manager without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves database schema metadata. It performs a read-only operation that returns information about table structures without creating, modifying, deleting, or executing code. The low severity reflects that schema inspection has minimal blast radius—it exposes structural information but cannot alter data or trigger external operations.
From the tool's definition Tool name 'get_schema' and description '获取数据库 schema（Markdown）。默认返回所有表的摘要' (retrieves database schema as Markdown, returns summary of all tables by default) indicate a retrieval operation with no data modification or deletion.
Attacks that exploit this kind of access
获取数据库 schema（Markdown）。默认返回所有表的摘要；. It is categorised as a Read tool in the MCP Database Manager MCP Server, which means it retrieves data without modifying state.
Register the MCP Database Manager MCP server in PolicyLayer and add a rule for get_schema: 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 MCP Database Manager. Nothing to install.
get_schema 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 get_schema 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 get_schema. 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.
get_schema is provided by the MCP Database Manager MCP server (meimingqi222/mcp-database-manager). 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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