get_ip_info

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

No annotations are provided, so the description carries full burden. It discloses the default behavior (returns current IP if ip is None) and hints at the return content (location, ASN, company, privacy). However, it lacks details on rate limits, authentication needs, error handling, or data freshness, which are important for a lookup 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 well-structured with a clear purpose statement, Args section, and Returns section. It's front-loaded and efficient, though the 'ctx: MCP context' in Args adds minimal value and could be omitted for better conciseness.

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 tool's moderate complexity (IP lookup), no annotations, and an output schema present, the description is fairly complete. It covers purpose, parameter semantics, and return content. However, it could improve by mentioning potential limitations or linking to sibling tools for specialized data.

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 0%, so the description must compensate. It explains the 'ip' parameter's purpose and default behavior (if None, returns current IP), adding meaningful semantics beyond the bare schema. With only one parameter, this is sufficient to earn a high score, though it could note format expectations (e.g., IPv4/IPv6).

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 the verb ('Get') and resource ('comprehensive information about an IP address'), making the purpose specific. It distinguishes from siblings like get_ip_city or get_ip_country by emphasizing 'comprehensive' information, indicating broader scope than those specialized tools.

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 provides clear context for usage: it's for IP address lookups, with a default behavior when ip is None (returns current IP info). However, it doesn't explicitly state when to use this versus alternatives like get_ip_location or get_asn_info, which are more specialized siblings.

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