get_databases

利用可能なデータベースの一覧を取得します

Server MySQL MCP Server yuki777/mysql-mcp-server
Category Read
Risk class Low
Parameters 00 required

What get_databases does on MySQL MCP Server

AI agents call get_databases 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.

Why get_databases needs a policy

The tool retrieves metadata about available databases without executing queries, modifying data, or triggering side effects. It is equivalent to 'SHOW DATABASES' in MySQL, which is a non-destructive informational query. Confidence is high because the intent is unambiguous from the name and the function of listing databases is inherently a read operation.

From the tool's definition Tool name 'get_databases' and description 'retrieves a list of available databases' indicate a query/list operation with no modification or deletion. This is a pure read operation.

Questions about get_databases

What does the get_databases tool do? +

利用可能なデータベースの一覧を取得します. It is categorised as a Read tool in the MySQL MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_databases? +

Register the MySQL MCP Server MCP server in PolicyLayer and add a rule for get_databases: 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.

What risk level is get_databases? +

get_databases is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get_databases? +

Yes. Add a rate_limit block to the get_databases 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.

How do I block get_databases completely? +

Set action: deny in the PolicyLayer policy for get_databases. 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.

What MCP server provides get_databases? +

get_databases is provided by the MySQL MCP Server MCP server (yuki777/mysql-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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