List all permission sets defined in Looker.
AI agents call list_permission_sets to retrieve information from Looker MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns information about permission sets without creating, modifying, deleting, or executing any operations. It has minimal blast radius—exposure could inform an attacker about access control structure, but the tool itself cannot be misused to alter permissions or access unauthorized resources. Classified as Read with low severity due to informational nature only.
From the tool's definition Tool name 'list_permission_sets' and description 'List all permission sets defined in Looker' indicate a query/retrieval operation with no side effects. The verb 'list' is a classic Read action that retrieves existing data without modification.
Attacks that exploit this kind of access
List all permission sets defined in Looker. It is categorised as a Read tool in the Looker MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Looker MCP Server MCP server in PolicyLayer and add a rule for list_permission_sets: 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 Looker MCP Server. Nothing to install.
list_permission_sets 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 list_permission_sets 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 list_permission_sets. 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.
list_permission_sets is provided by the Looker MCP Server MCP server (ultrathink-solutions/looker-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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