AI agents call search_available_versions 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 data (available Bible versions) in response to search criteria. It has no side effects, does not modify data, execute code, delete resources, or involve financial transactions. It is a straightforward Read operation typical of a Bible study resource API.
From the tool's definition Tool name 'search_available_versions' and description '搜尋符合條件的聖經版本' (Search for Bible versions matching conditions) indicate a query/search operation that retrieves information about available Bible versions without modifying, deleting, or executing code.
Documented attack patterns abuse exactly the kind of access search_available_versions 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 search_available_versions:
{
"version": "1",
"default": "deny",
"tools": {
"search_available_versions": {}
}
}search_available_versions is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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搜尋符合條件的聖經版本。. 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 search_available_versions: 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.
search_available_versions 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 search_available_versions 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 search_available_versions. 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.
search_available_versions 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.