delete_usergroup

THE RISK

Critical Risk

Why delete_usergroup needs a policy

This tool permanently removes a user group from GeoServer, which cannot be undone. Even though it operates on access control metadata rather than data, deletion of security groups is irreversible and could lock users out of resources or disrupt organizational access structures.

From the tool's definition Tool name is 'delete_usergroup' and description explicitly states 'Delete a user group' with 'Result of group deletion' return value.

Documented attack patterns abuse exactly the kind of access delete_usergroup gives an agent:

POLICY

How to control delete_usergroup

PolicyLayer is an MCP gateway — it sits between your AI agents and GeoServer MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for delete_usergroup:

policy.json

{
  "version": "1",
  "default": "deny",
  "hide": [
    "delete_usergroup"
  ]
}

delete_usergroup disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.

Create a free account and register GeoServer MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

RESTRICT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More GeoServer MCP Server tools

Destructive delete_coveragestore Delete a coveragestore from a workspace. Args: workspace (str): Workspace Destructive delete_layergroup Delete a layer group from a workspace. Args: workspace (str): Workspace. Destructive delete_resource Delete a resource from GeoServer. Args: resource_type: Type of resource t Destructive delete_user Delete a user by name. Args: username (str): User to remove. Returns: Destructive remove_layer_from_layergroup Remove a layer from a group. Args: layer_name (str): Layer. layer Destructive reset_geoserver Reset all GeoServer caches/connections. Returns: str: Result message from Execute reload_geoserver Reload catalog and config from disk. Returns: str: Result message from re Write add_layer_to_layergroup Add a specific layer to a layer group. Args: layer_name (str): Layer to a

All 56 GeoServer MCP Server tools →

Destructive tools on other servers

Android Forensics ADB MCP Server create_full_backup 0xarchive web3_revoke_key Frida Game Hacking MCP clear_scan cPanel MCP Server clear_spam_box

Go deeper

Critical-risk tools in GeoServer MCP Server → Every critical-risk tool this server exposes, in one view.
All critical-risk MCP tools → Every critical-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Blast radius → How much damage one compromised or confused agent can do — and how to bound it.
Tool call approval → Approval gates on individual tool calls: auto-allow, prompt, or deny.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about delete_usergroup

What does the delete_usergroup tool do? +

Delete a user group. Args: name (str): Name of group to remove. Returns: dict: Result of group deletion. It is categorised as a Destructive tool in the GeoServer MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on delete_usergroup? +

Register the GeoServer MCP Server MCP server in PolicyLayer and add a rule for delete_usergroup: 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 GeoServer MCP Server. Nothing to install.

What risk level is delete_usergroup? +

delete_usergroup is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit delete_usergroup? +

Yes. Add a rate_limit block to the delete_usergroup 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 delete_usergroup completely? +

Set action: deny in the PolicyLayer policy for delete_usergroup. 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 delete_usergroup? +

delete_usergroup is provided by the GeoServer MCP Server MCP server (mahdin75/geoserver-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every GeoServer MCP Server tool call.

Start from GeoServer MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →