AI agents call query to retrieve information from Nesift without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and searches previously indexed content using hybrid search methods (BM25 and semantic embeddings). It queries existing indexed pages but does not create, modify, delete, or execute external operations. No side effects or data mutations occur.
From the tool's definition Tool description states 'Hybrid BM25 + embedding semantic search over indexed pages' - performs search/query operations without modifying data. Name 'query' and action verb 'search' confirm read-only retrieval.
Attacks that exploit this kind of access
Hybrid BM25 + embedding semantic search over indexed pages. It is categorised as a Read tool in the Nesift MCP Server, which means it retrieves data without modifying state.
Register the Nesift MCP server in PolicyLayer and add a rule for 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 Nesift. Nothing to install.
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 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 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.
query is provided by the Nesift MCP server (scottgl9/nesift). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
Teams ship this data inside their own products. See what a licence covers →