AI agents call query_verse_citation 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 performs verse lookup and parsing—a read-only operation that retrieves existing Bible study data from the FHL API without side effects. It takes a citation string as input and returns corresponding verse content. No data is created, modified, deleted, or executed. The blast radius of misuse is minimal; worst case, an agent could exhaust API calls or retrieve sensitive texts, neither of which causes harm.
From the tool's definition Tool description states '解析並查詢經文引用字串' (parse and query verse citation strings). The function parses and retrieves Bible verses by citation format. The term '查詢' (query) indicates data retrieval only.
Documented attack patterns abuse exactly the kind of access query_verse_citation 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 query_verse_citation:
{
"version": "1",
"default": "deny",
"tools": {
"query_verse_citation": {}
}
}query_verse_citation is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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解析並查詢經文引用字串（如：'約 3:16', '太 5:3-10'）。. 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 query_verse_citation: 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.
query_verse_citation 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 query_verse_citation 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 query_verse_citation. 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.
query_verse_citation 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.