Access Groups \u00b7 mutation deleteAccessGroup. Variables: id. Example variables: {\
AI agents call delete_access_group to permanently remove resources in ReliaQuest GreyMatter MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
This tool permanently deletes an access group by ID. Access group deletion is destructive—it cannot be undone and affects authorization policies and user permissions that depend on that group. The blast radius is significant if an AI agent misuses this without proper controls, potentially locking out users or breaking security controls.
From the tool's definition Tool name 'delete_access_group' combined with description indicating a GraphQL mutation 'deleteAccessGroup' with required 'id' variable. The 'delete' operation on access control resources is irreversible.
Attacks that exploit this kind of access
Access Groups \u00b7 mutation deleteAccessGroup. Variables: id. Example variables: {\. It is categorised as a Destructive tool in the ReliaQuest GreyMatter MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the ReliaQuest GreyMatter MCP Server MCP server in PolicyLayer and add a rule for delete_access_group: 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.
delete_access_group is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the delete_access_group 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 delete_access_group. 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.
delete_access_group 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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