check_ip_in_network

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

No annotations are provided, so the description carries full responsibility. It only restates the basic operation and provides 'Returns: Check result' without disclosing edge cases, accepted IP formats (IPv4/IPv6), error behavior, or return type details. This leaves significant ambiguity for an agent.

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 very short, with clear sections for arguments and returns, and contains no redundant text. It earns high marks for conciseness, though the brevity contributes to the lack of behavioral detail.

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 check tool, it covers the core operation and parameter names, but it lacks usage guidance, input format constraints, and clarification of the result format. An output schema exists, which partially covers return details, but the description still feels minimally complete for an agent needing to invoke it correctly.

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?

With 0% schema description coverage, the description should compensate, but it merely says 'ip_address: IP address to check' and 'cidr: CIDR range'—essentially restating the parameter names. It adds no format examples, constraints, or additional meaning, offering minimal value over 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 a specific verb and resource: 'Check if an IP address is within a CIDR range.' This directly differentiates it from siblings like validate_network_cidr or check_network_overlap, which have distinct purposes.

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 purpose implies when to use the tool (testing IP membership in a network), but there is no explicit guidance about when not to use it or which sibling alternative to choose. No exclusions or alternative scenarios are mentioned.

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