AI agents call get_book_list to retrieve information from FHL Bible 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 or lists Bible book data with no side effects. It is a straightforward read operation that provides reference information for Bible study. There is no data creation, modification, deletion, code execution, or financial component involved.
From the tool's definition Tool name 'get_book_list' and description '取得聖經書卷列表' (Get Bible book list) indicate a retrieval operation that queries available Bible books without modification.
Documented attack patterns abuse exactly the kind of access get_book_list gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and FHL Bible MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_book_list:
{
"version": "1",
"default": "deny",
"tools": {
"get_book_list": {}
}
}get_book_list is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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取得聖經書卷列表。. It is categorised as a Read tool in the FHL Bible MCP Server MCP Server, which means it retrieves data without modifying state.
Register the FHL Bible MCP Server MCP server in PolicyLayer and add a rule for get_book_list: 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 FHL Bible MCP Server. Nothing to install.
get_book_list 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_book_list 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_book_list. 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_book_list is provided by the FHL Bible MCP Server MCP server (ytssamuel/fhl-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from FHL Bible MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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56 FHL Bible MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.