zabbix_delete_value_maps

THE RISK

Critical Risk

Why zabbix_delete_value_maps needs a policy

The tool performs irreversible deletion of value map configurations from the Zabbix monitoring system. This is a destructive action that cannot be undone and could impact monitoring interpretation if value maps are relied upon by active monitors and dashboards. While not directly dangerous like deleting hosts or alerts, the permanent nature of deletion and potential monitoring disruption justify 'high' severity.

From the tool's definition Tool name explicitly contains 'delete' and description states 'Delete value maps from Zabbix'. Value maps are configuration data that cannot be easily recovered once deleted.

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

POLICY

How to control zabbix_delete_value_maps

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

policy.json

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

zabbix_delete_value_maps 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 Zabbix 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 →

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EXPLORE

Related tools and policies

More Zabbix MCP Server tools

Destructive zabbix_delete_actions Delete actions from Zabbix Destructive zabbix_delete_correlations Delete event correlations from Zabbix Destructive zabbix_delete_dashboards Delete dashboards from Zabbix Destructive zabbix_delete_discovery_rules Delete Low-Level Discovery (LLD) rules from Zabbix Destructive zabbix_delete_hostgroups Delete host groups from Zabbix Destructive zabbix_delete_icon_maps Delete icon maps from Zabbix Destructive zabbix_delete_items Delete items from Zabbix Destructive zabbix_delete_maintenance Delete maintenance periods from Zabbix

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Go deeper

Critical-risk tools in Zabbix 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 zabbix_delete_value_maps

What does the zabbix_delete_value_maps tool do? +

Delete value maps from Zabbix. It is categorised as a Destructive tool in the Zabbix 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 zabbix_delete_value_maps? +

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

What risk level is zabbix_delete_value_maps? +

zabbix_delete_value_maps 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 zabbix_delete_value_maps? +

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

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

zabbix_delete_value_maps is provided by the Zabbix MCP Server MCP server (leroylim/zabbix-mcp-server-nodejs). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Zabbix MCP Server tool call.

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

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