get_ipv4_status

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, and it discloses almost nothing: no statement that this is a read-only/non-destructive query, no indication of whether it is the router's WAN address, the LAN address, or both, and no mention of any side effects. With zero annotation coverage, this is a significant gap even for a safe-looking status call.

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?

A single terse phrase with no padding, and the resource scope is front-loaded. It is arguably too short rather than too long, so it does not lose points for verbosity.

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?

With no output schema, the description should give the agent some idea of what comes back (WAN IP, LAN IP, subnet, gateway, protocol state), but it says only "WAN/LAN IPv4 状態." Combined with no annotations, an agent cannot tell what fields or which interface's data it will receive.

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?

The input schema declares zero parameters, so there is nothing for the description to disambiguate; baseline 4 applies. The description does not introduce any parameter-like concepts, which is consistent with the schema.

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 phrase "WAN/LAN IPv4 状態" names a resource and a scope (WAN and LAN IPv4 state), which is more than the bare name conveys, but it is a noun phrase with no verb and no explicit statement of what is being retrieved or reported. It does implicitly contrast with the sibling get_ipv6_status, but never says so.

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?

There is no guidance on when to call this versus get_ipv6_status, router_overview, or raw_request, and no conditions or prerequisites are stated. The agent must infer from the name alone that this retrieves current IPv4 addressing information.

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