Find notes whose title or content contains the query (case-insensitive).
AI agents call search_notes to retrieve information from MCP Notes Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
search_notes performs a query operation to locate and retrieve notes based on search criteria. This is a non-destructive, side-effect-free information retrieval function. It does not create, modify, delete, or execute any operations - it only searches and returns results.
From the tool's definition Tool description states it 'Find notes whose title or content contains the query' - a retrieval operation with no modification. The verb 'find' and the read-only nature of searching are consistent with the Read category.
Attacks that exploit this kind of access
Find notes whose title or content contains the query (case-insensitive). It is categorised as a Read tool in the MCP Notes Server MCP Server, which means it retrieves data without modifying state.
Register the MCP Notes Server MCP server in PolicyLayer and add a rule for search_notes: 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 Notes Server. Nothing to install.
search_notes 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_notes 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_notes. 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_notes is provided by the MCP Notes Server MCP server (pipinho13/mcp_tutorial). 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.
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