AI agents call note_list to retrieve information from Lockstep without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and displays notes without modifying, deleting, or executing any operations. It is a straightforward query/list operation that falls squarely within the Read category. The low severity reflects minimal risk—listing notes cannot cause harm unless the notes themselves contain sensitive information, but that is a data sensitivity issue, not a tool risk issue.
From the tool's definition Tool name 'note_list' and description 'List recent notes' indicate a retrieval operation with no side effects.
Attacks that exploit this kind of access
List recent notes. It is categorised as a Read tool in the Lockstep MCP Server, which means it retrieves data without modifying state.
Register the Lockstep MCP server in PolicyLayer and add a rule for note_list: 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 Lockstep. Nothing to install.
note_list 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 note_list 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 note_list. 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.
note_list is provided by the Lockstep MCP server (tmmoore286/lockstep-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
note_list is one line of Lockstep's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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