hcloud_list_firewalls

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

The annotations already declare readOnlyHint=true, destructiveHint=false, and openWorldHint=true, so the safety profile is covered. The description adds that all firewalls are returned and that URI parameters can modify the result, but it does not describe pagination behavior, rate limits, or return format beyond "all Firewalls".

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

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

The description is short and front-loaded with the primary action. The final sentence is vague and arguably redundant with the schema, keeping it from being maximally concise, but there is no bloated prose.

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

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

For a simple read-only list tool with full schema coverage, annotations covering safety, and the description stating that all firewalls are returned with optional URI filtering, the definition is mostly complete. It does not explain pagination defaults or route the agent away from sibling tools, but an agent can still invoke it correctly from the schema and annotations.

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

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

Schema description coverage is 100%, and the schema fully documents all six optional parameters including name, page, sort, per_page, auto_paginate, and label_selector. The description only says "Use the provided URI parameters to modify the result" and adds no parameter-level meaning beyond the schema, so the baseline of 3 applies.

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

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

The description states a specific verb and resource ("List Firewalls") and explicitly says it "Returns all [Firewalls]", so an agent can tell this is a collection-listing operation. It does not explicitly contrast with hcloud_get_firewall or hcloud_list_firewall_actions, so sibling differentiation is left implicit.

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

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

The description says to "Use the provided URI parameters to modify the result," but this is operational guidance for filtering, not when-to-use guidance. It never names alternatives like hcloud_get_firewall or hcloud_list_firewall_actions, nor does it state exclusions such as preferring get_firewall for a single known ID.

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