Access Groups \u00b7 query accessGroups. Variables: after, filter, first, notFilter, order. Example variables: {\
AI agents call access_groups to retrieve information from ReliaQuest GreyMatter MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a straightforward query operation that retrieves access group data from the ReliaQuest GreyMatter platform. The parameters (filter, first, notFilter, order) are standard pagination and filtering options typical of read-only queries. There are no side effects or state changes.
From the tool's definition Tool name 'access_groups' with description 'query accessGroups' indicates a retrieval operation with parameters for filtering and pagination (after, filter, first, notFilter, order). No modification, deletion, or execution capability is described.
Attacks that exploit this kind of access
Access Groups \u00b7 query accessGroups. Variables: after, filter, first, notFilter, order. Example variables: {\. It is categorised as a Read tool in the ReliaQuest GreyMatter MCP Server MCP Server, which means it retrieves data without modifying state.
Register the ReliaQuest GreyMatter MCP Server MCP server in PolicyLayer and add a rule for access_groups: 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 ReliaQuest GreyMatter MCP Server. Nothing to install.
access_groups 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 access_groups 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 access_groups. 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.
access_groups is provided by the ReliaQuest GreyMatter MCP Server MCP server (space-c0wboy/reliaquest-greymatter-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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