info

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

With no annotations, the description must fully disclose behavior. It clearly describes the tool as a classifier that returns version and flags, but it does not mention error handling for invalid addresses or behavior for unsupported input formats.

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 a single, well-structured sentence that immediately states the main purpose, with no redundant information.

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?

Given the absence of an output schema, the description provides a clear expectation of output (version plus flags). It is adequate for a simple classification tool, though additional details on output format or potential errors could improve completeness.

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 coverage is 0%, so the description must compensate. The description explains the 'address' parameter is an IP address, but it does not specify format details (e.g., CIDR notation, validation rules). The parameter is straightforward, but the description adds minimal semantic depth beyond 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 description clearly states 'Classify an IPv4 or IPv6 address' and lists specific classification categories (version, private, loopback, etc.), making the purpose precise and distinct from sibling tools 'contains' and 'expand'.

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 implies usage for obtaining classification details of IP addresses, but it does not provide explicit guidance on when to use this tool versus alternatives like 'contains' or 'expand', nor does it mention prerequisites or constraints.

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