AI agents call list_apocrypha_books 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 and enumerates metadata about apocryphal biblical books without modifying, executing, or deleting any data. It is a straightforward listing/querying operation typical of read-only access to a reference database. The blast radius of misuse is minimal—an agent cannot cause harm by listing available resources.
From the tool's definition Tool name 'list_apocrypha_books' and description '列出所有可用的次經書卷及其資訊' (list all available apocryphal books and their information) indicates a data retrieval operation with no side effects.
Documented attack patterns abuse exactly the kind of access list_apocrypha_books 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 list_apocrypha_books:
{
"version": "1",
"default": "deny",
"tools": {
"list_apocrypha_books": {}
}
}list_apocrypha_books is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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列出所有可用的次經書卷及其資訊。. 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 list_apocrypha_books: 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.
list_apocrypha_books 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_apocrypha_books 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_apocrypha_books. 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_apocrypha_books 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.
Free to start. No card required.
56 FHL Bible MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.