AI agents call search_available_versions_tool 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 searches and returns information about available Bible versions. It performs a read-only query operation with no side effects—it does not create, modify, delete, execute code, or move money. The search action is purely informational retrieval, placing it firmly in the Read category with low severity since misuse would only return unwanted metadata about Bible versions.
From the tool's definition Tool name 'search_available_versions_tool' and description '搜尋符合條件的聖經版本' (search for Bible versions matching conditions) indicates a search/query operation that retrieves available Bible versions without modifying data.
Documented attack patterns abuse exactly the kind of access search_available_versions_tool 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_tool:
{
"version": "1",
"default": "deny",
"tools": {
"search_available_versions_tool": {}
}
}search_available_versions_tool 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_tool: 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_tool 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_tool 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_tool. 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_tool 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.