環境変数から設定された利用可能なデータベース接続の一覧を取得します。各データベースのエイリアス、サーバー、データベース名を返します。
AI agents call fm_list_databases to retrieve information from FileMaker MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves metadata about available database connections from environment variables—a pure read operation that does not modify, delete, or execute actions on data. It fits squarely in the Read category. Severity is low because exposing available database names and aliases poses minimal immediate risk; an attacker would still need valid credentials to access actual data.
From the tool's definition Tool description states 'retrieves a list of available database connections' (環境変数から設定された利用可能なデータベース接続の一覧を取得します) and returns database aliases, server, and database names. This is a query/list operation with no side effects.
Attacks that exploit this kind of access
環境変数から設定された利用可能なデータベース接続の一覧を取得します。各データベースのエイリアス、サーバー、データベース名を返します。. It is categorised as a Read tool in the FileMaker MCP Server MCP Server, which means it retrieves data without modifying state.
Register the FileMaker MCP Server MCP server in PolicyLayer and add a rule for fm_list_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 FileMaker MCP Server. Nothing to install.
fm_list_databases 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 fm_list_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.
Set action: deny in the PolicyLayer policy for fm_list_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.
fm_list_databases is provided by the FileMaker MCP Server MCP server (ta-toshio/filemaker-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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