Create a new maintenance period in Zabbix
AI agents use zabbix_create_maintenance to create or update resources in Zabbix MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Zabbix MCP Server environment.
Creating a maintenance period in Zabbix adds a new reversible configuration object that suppresses alerts and notifications during planned maintenance windows. This is a Write operation (not Read, as it modifies state; not Destructive, as it can be deleted; not Execute/Financial, as it does not run arbitrary code or move money).
From the tool's definition Tool name 'zabbix_create_maintenance' and description 'Create a new maintenance period in Zabbix' indicate data creation/modification. The 'create' verb establishes this as a Write operation that adds a new maintenance configuration to the monitoring system.
Documented attack patterns abuse exactly the kind of access zabbix_create_maintenance gives an agent:
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_create_maintenance:
{
"version": "1",
"default": "deny",
"tools": {
"zabbix_create_maintenance": {
"limits": [
{
"counter": "zabbix_create_maintenance_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}zabbix_create_maintenance stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
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Create a new maintenance period in Zabbix. It is categorised as a Write tool in the Zabbix MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Zabbix MCP Server MCP server in PolicyLayer and add a rule for zabbix_create_maintenance: 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.
zabbix_create_maintenance is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the zabbix_create_maintenance 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 zabbix_create_maintenance. 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.
zabbix_create_maintenance 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.
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.
Free to start. No card required.
102 Zabbix MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.