List all Markdown (.md) files in the notes directory: \
AI agents call notes_list to retrieve information from Superskills without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool only lists files in a notes directory—a read-only operation with no side effects, capability to execute code, modify data, delete content, or commit financial transactions. The minimal blast radius and lack of destructive potential justify 'low' severity.
From the tool's definition Tool name 'notes_list' and description 'List all Markdown (.md) files in the notes directory' indicate a directory listing operation that retrieves data without modification or execution.
Attacks that exploit this kind of access
List all Markdown (.md) files in the notes directory: \. It is categorised as a Read tool in the Superskills MCP Server, which means it retrieves data without modifying state.
Register the Superskills MCP server in PolicyLayer and add a rule for notes_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 Superskills. Nothing to install.
notes_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 notes_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 notes_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.
notes_list is provided by the Superskills MCP server (lee2026-dev/superskills-mcp). 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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