Stream search results in batches for large result sets with filtering and progress tracking
AI agents call streaming-search to retrieve information from MCP Index Notes without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and filters data from the notes index with no side effects. Streaming is a delivery mechanism for results, not an action that changes state. The mention of 'filtering and progress tracking' are read-only operations. No data is created, modified, deleted, or financially committed.
From the tool's definition Tool name 'streaming-search' and description 'Stream search results in batches for large result sets with filtering and progress tracking' indicate a retrieval operation that queries existing note data without modifying, deleting, or executing external code.
Attacks that exploit this kind of access
Stream search results in batches for large result sets with filtering and progress tracking. It is categorised as a Read tool in the MCP Index Notes MCP Server, which means it retrieves data without modifying state.
Register the MCP Index Notes MCP server in PolicyLayer and add a rule for streaming-search: 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 MCP Index Notes. Nothing to install.
streaming-search 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 streaming-search 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 streaming-search. 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.
streaming-search is provided by the MCP Index Notes MCP server (vjsr007/mcp-index-notes). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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