AI agents call get_notes to retrieve information from Zk Utils without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The 'get_' prefix and presence of similar read-only sibling tools in a 'note management' system with 'search' functionality indicate this tool retrieves data. No evidence of creation, modification, deletion, or execution. No side effects expected. Classified as Read with low severity due to limited blast radius of note retrieval alone. Confidence slightly reduced due to empty description, but context is clear.
From the tool's definition Tool name 'get_notes' combined with sibling tools (get_note_content, get_last_modified_note, get_related_notes, get_random_note, get_tagless_notes) all using 'get_' prefix indicates retrieval operations.
Attacks that exploit this kind of access
get_notes. It is categorised as a Read tool in the Zk Utils MCP Server, which means it retrieves data without modifying state.
Register the Zk Utils MCP server in PolicyLayer and add a rule for get_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 Zk Utils. Nothing to install.
get_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 get_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 get_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.
get_notes is provided by the Zk Utils MCP server (koei-kaji/zk-utils). 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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