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rstierli

FortiManager MCP Server

by rstierli

list_address_groups

Retrieve firewall address groups from a FortiManager ADOM to simplify policy management. Optionally filter by name.

Instructions

List firewall address groups in an ADOM.

Address groups contain multiple address objects for easier policy management.

Args: adom: ADOM name (default: from DEFAULT_ADOM env var, or "root") name_filter: Filter by name (partial match)

Returns: dict: Group list with keys: - status: "success" or "error" - count: Number of groups - groups: List of address group objects - message: Error message if failed

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
adomNo
name_filterNo

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Behavior3/5

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

With no annotations, the description carries the burden. It details the return format but lacks information on pagination, rate limits, or any side effects. It is adequate for a simple list operation.

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?

The description is structured with clear args and returns sections. It front-loads the purpose. The sentence about address groups is background but not essential; overall it is efficient.

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

Completeness3/5

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

While the description covers parameters and output adequately for a simple list, it omits details about environment variable fallback behavior, authentication, and whether the list is paginated. It is acceptable but not complete.

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

Parameters4/5

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

Schema description coverage is 0%, but the description adds meaning by explaining 'adom' uses an env var default and 'name_filter' performs partial matching. This compensates well for the lack of schema descriptions.

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

Purpose5/5

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

The description clearly states 'List firewall address groups in an ADOM', which is a specific verb and resource. It distinguishes from siblings like 'get_address_group' (single) and 'list_addresses' (address objects).

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

Usage Guidelines3/5

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

The description implies usage for listing multiple address groups but does not explicitly state when to use this tool versus alternatives like 'get_address_group' or mention any prerequisites or when-not-to-use scenarios.

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

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