parse_url_components

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

No annotations provided; the description fails to disclose what components are extracted, how invalid URLs are handled, or the output format. Although an output schema exists, the description does not mention behavior beyond 'parse'.

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?

One efficient sentence with no wasted words. Clearly front-loaded with the action and resource.

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?

Minimally adequate for a simple parse tool with an output schema. Lacks usage guidance and behavioral details but covers the core purpose.

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 100% with a clear 'url' description. The description adds minimal extra meaning beyond the schema, achieving baseline score for a single-parameter tool.

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 'Parse a URL and extract its components' clearly states the verb (parse) and resource (URL). It distinguishes itself from sibling parse tools (parse_csv, parse_html, etc.) by being URL-specific.

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 on when to use this tool vs alternatives like validate_url_format or check_url_status. The description lacks context about when parsing is appropriate.

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