This record as markdown: /tools/io-fusionauth-mcp-api/deletegroupwithid.md
What deleteGroupWithId does on Fusionauth
AI agents call deleteGroupWithId to permanently remove resources in Fusionauth, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Why deleteGroupWithId is rated Critical
This tool permanently removes a group from the FusionAuth system, which cannot be undone. Deletion is an irreversible operation that destroys data, placing it in the Destructive category. Severity is high because unauthorized deletion of groups could disrupt access control, user organization, and system integrity, though the blast radius is limited to a single group rather than system-wide data.
From the tool's definition Tool name is 'deleteGroupWithId' and description states 'Deletes the group for the given Id.' The verb 'deletes' combined with 'group' indicates irreversible removal of data.
Attacks that exploit this kind of access
The rule that runs deleteGroupWithId safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Fusionauth, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For deleteGroupWithId, this is the rule to start with:
deleteGroupWithId is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.
The button opens the PolicyLayer dashboard: create your workspace, connect Fusionauth, apply this rule, and every deleteGroupWithId call is checked against it from then on.
Questions about deleteGroupWithId
Deletes the group for the given Id. It is categorised as a Destructive tool in the Fusionauth MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Fusionauth MCP server in PolicyLayer and add a rule for deleteGroupWithId: 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 Fusionauth. Nothing to install.
deleteGroupWithId 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 deleteGroupWithId 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 deleteGroupWithId. 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.
deleteGroupWithId is provided by the Fusionauth MCP server (@fusionauth/mcp-api). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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