list_cards · Metabase Mcp Navi MCP: Risk & Policy

WHAT IT DOES

What list_cards does on Metabase Mcp Navi

AI agents call list_cards to retrieve information from Metabase Mcp Navi without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

WHY IT NEEDS A POLICY

Why list_cards needs a policy

The 'list' prefix strongly indicates a query/enumeration operation with no side effects. While the description is uninformative, the sibling context (dashboards, cards, collections) and naming convention confirm this retrieves metadata.

From the tool's definition Tool name 'list_cards' with no description; follows the Read pattern (list operation) alongside other Metabase retrieval tools on the server.

Attacks that exploit this kind of access

Questions about list_cards

What does the list_cards tool do? +

list_cards. It is categorised as a Read tool in the Metabase Mcp Navi MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_cards? +

Register the Metabase Mcp Navi MCP server in PolicyLayer and add a rule for list_cards: 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 Metabase Mcp Navi. Nothing to install.

What risk level is list_cards? +

list_cards is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit list_cards? +

Yes. Add a rate_limit block to the list_cards 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.

How do I block list_cards completely? +

Set action: deny in the PolicyLayer policy for list_cards. 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.

What MCP server provides list_cards? +

list_cards is provided by the Metabase Mcp Navi MCP server (manish-coder-1007/metabase-mcp-navi). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.