List tags visible to the current user.
AI agents call refmd-list-tags to retrieve information from RefMD MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a query operation to enumerate tags accessible to the authenticated user. It has no capability to modify, delete, or execute operations. The only potential risk is information disclosure if tag names themselves contain sensitive information, but this is mitigated by the fact that tags are already 'visible to the current user', implying proper access control is in place.
From the tool's definition Tool name is 'refmd-list-tags' and description states 'List tags visible to the current user' - this is a read-only operation that retrieves data without modification or side effects.
Attacks that exploit this kind of access
List tags visible to the current user. It is categorised as a Read tool in the RefMD MCP Server MCP Server, which means it retrieves data without modifying state.
Register the RefMD MCP Server MCP server in PolicyLayer and add a rule for refmd-list-tags: 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 RefMD MCP Server. Nothing to install.
refmd-list-tags 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 refmd-list-tags 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 refmd-list-tags. 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.
refmd-list-tags is provided by the RefMD MCP Server MCP server (refmdio/mcp-server). 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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