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ry-ops

fortigate-mcp-server

by ry-ops

create_address

Create a firewall address object for a subnet/host, IP range, or FQDN to use in FortiGate policies.

Instructions

Create a firewall address: a subnet/host, an IP range, or an FQDN.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
fqdnNoFQDN (instead of subnet or range)
nameYesAddress name
vdomNoVDOM (default: FORTIGATE_VDOM, usually root)
extraNoExtra FortiOS attributes merged into the request body as-is (hyphenated keys)
end_ipNoRange end
subnetNoSubnet in CIDR (10.0.0.0/24) or 'ip mask' form; a host is /32
commentNoComment
start_ipNoRange start (use with end_ip instead of subnet)

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.4.1

TDQS

C2.9/5.0
Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description carries the full behavioral burden, yet it says nothing about write semantics, permissions, duplicate-name behavior, or what the VDOM default means. For a mutation tool with zero annotation coverage, this is a significant gap.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

A single front-loaded sentence with no filler or redundancy. It is efficient, though its brevity is partly the same under-specification reflected elsewhere.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a create tool with eight parameters, a nested `extra` object, no annotations, and no output schema, the description omits the response shape, error/duplicate behavior, and any mention of the passthrough `extra` attribute. It covers the resource shape but leaves the agent without enough to call it confidently.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so the schema already documents all eight parameters, including the subnet/FQDN/range distinction. The description's enumeration of the three address forms largely restates the schema, so the baseline 3 applies.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

States a specific verb and resource ("Create a firewall address") and enumerates the three supported forms (subnet/host, IP range, FQDN), so an agent can distinguish it from siblings like create_address_group. It does not explicitly name the alternative tools, but the resource itself is unambiguous.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

No when-to-use context, prerequisites, or exclusions are given. The address-form enumeration implies which parameter set applies, but nothing tells the agent when to choose this tool over create_address_group or update_address.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.