First to use: Process natural language queries and convert them to structured search parameters according to NLI MCP instructions.
AI agents call process_natural_query to retrieve information from National Library of Israel Search MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs query conversion and search operations without side effects. It retrieves or queries data from a digital archive but does not create, modify, delete, or execute any external operations. The conversion of natural language to structured parameters is purely a preparatory read operation for subsequent search queries.
From the tool's definition Tool description states it 'Process[es] natural language queries and convert[s] them to structured search parameters' for searching the National Library of Israel's digital archive.
Attacks that exploit this kind of access
First to use: Process natural language queries and convert them to structured search parameters according to NLI MCP instructions. It is categorised as a Read tool in the National Library of Israel Search MCP MCP Server, which means it retrieves data without modifying state.
Register the National Library of Israel Search MCP server in PolicyLayer and add a rule for process_natural_query: 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 National Library of Israel Search MCP. Nothing to install.
process_natural_query 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 process_natural_query 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 process_natural_query. 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.
process_natural_query is provided by the National Library of Israel Search MCP server (mula2812/nli_ai_search). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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