查询数据库中的所有表，包含表注释、引擎、行数等信息
AI agents call list_tables to retrieve information from Keevor Mysql without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool retrieves and lists database table metadata without creating, modifying, deleting, or executing any operations. It is a passive read operation with no side effects. While the sibling tool execute_sql could be dangerous (Execute/Destructive depending on arguments), list_tables itself only performs informational queries.
From the tool's definition Tool name: list_tables; Description: '查询数据库中的所有表，包含表注释、引擎、行数等信息' (queries all tables in the database, including table comments, engine, row count etc). This is a retrieval-only operation that queries metadata without modifying data.
Attacks that exploit this kind of access
查询数据库中的所有表，包含表注释、引擎、行数等信息. It is categorised as a Read tool in the Keevor Mysql MCP Server, which means it retrieves data without modifying state.
Register the Keevor Mysql MCP server in PolicyLayer and add a rule for list_tables: 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 Keevor Mysql. Nothing to install.
list_tables 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 list_tables 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 list_tables. 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.
list_tables is provided by the Keevor Mysql MCP server (keevor/keevor-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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