ipv4_subnet

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

The description lacks behavioral details beyond stating it calculates subnet info. With no annotations provided, the description does not disclose error handling, input validation, or any side effects, which is inadequate for a calculation tool.

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 concise at two sentences plus parameter details. It front-loads the purpose, then lists parameters. Every part earns its place, though the parameter list could be more integrated into the 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?

Given the presence of an output schema, the description appropriately focuses on what the tool calculates. It covers the key outputs (network, broadcast, hosts) and the parameter details, making it complete for a straightforward subnet calculator.

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?

Despite 0% schema description coverage, the description adds meaning by explicitly defining each parameter with examples: 'ip — IP address (e.g. '192.168.1.0'). cidr — CIDR prefix length (default: 24).' This compensates for the schema's lack of descriptions.

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 'Calculate IPv4 subnet information: network, broadcast, hosts.' It uses a specific verb and resource, distinguishing it from siblings like 'ipv6_expand' by focusing exclusively on IPv4 subnet calculations.

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?

No guidance is provided on when to use this tool versus alternatives. There is no mention of prerequisites, when not to use it, or comparison to sibling tools such as 'ipv6_expand', leaving the agent to infer usage context.

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